fiftyone.zoo¶

Module contents¶

The FiftyOne Zoo.

Classes:

`OrderedDict`	Dictionary that remembers insertion order
`ZooDatasetInfo`(zoo_dataset, dataset_type, …)	Class containing info about a dataset in the FiftyOne Dataset Zoo.
`ZooDatasetSplitInfo`(split, num_samples)	Class containing info about a split of a dataset in the FiftyOne Dataset Zoo.
`ZooDataset`	Base class for datasets made available in the FiftyOne Dataset Zoo.
`DeprecatedZooDataset`	Class representing a zoo dataset that no longer exists in the FiftyOne Dataset Zoo.
`defaultdict`	defaultdict(default_factory[, …]) –> dict with default factory
`HasZooModel`	Mixin class for Config classes of `fiftyone.core.models.Model` instances whose models are stored in the FiftyOne Model Zoo.
`ZooModel`(base_name, base_filename, manager)	Class describing a model in the FiftyOne Model Zoo.
`ZooModelsManifest`([models])	Class that describes the collection of models in the FiftyOne Model Zoo.

Functions:

`list_zoo_datasets`([tags, source])	Returns the list of available datasets in the FiftyOne Dataset Zoo.
`list_downloaded_zoo_datasets`([base_dir])	Returns information about the zoo datasets that have been downloaded.
`download_zoo_dataset`(name[, split, splits, …])	Downloads the dataset of the given name from the FiftyOne Dataset Zoo.
`load_zoo_dataset`(name[, split, splits, …])	Loads the dataset of the given name from the FiftyOne Dataset Zoo as a `fiftyone.core.dataset.Dataset`.
`find_zoo_dataset`(name[, split])	Returns the directory containing the given zoo dataset.
`load_zoo_dataset_info`(name[, dataset_dir])	Loads the `ZooDatasetInfo` for the specified zoo dataset.
`get_zoo_dataset`(name, **kwargs)	Returns the `ZooDataset` instance for the dataset with the given name.
`delete_zoo_dataset`(name[, split])	Deletes the zoo dataset from local disk, if necessary.
`deepcopy`(x[, memo, _nil])	Deep copy operation on arbitrary Python objects.
`list_zoo_models`()	Returns the list of available models in the FiftyOne Model Zoo.
`list_downloaded_zoo_models`()	Returns information about the zoo models that have been downloaded.
`is_zoo_model_downloaded`(name)	Determines whether the zoo model of the given name is downloaded.
`download_zoo_model`(name[, overwrite])	Downloads the model of the given name from the FiftyOne Dataset Zoo.
`install_zoo_model_requirements`(name[, …])	Installs any package requirements for the zoo model with the given name.
`ensure_zoo_model_requirements`(name[, …])	Ensures that the package requirements for the zoo model with the given name are satisfied.
`load_zoo_model`(name[, …])	Loads the model of the given name from the FiftyOne Model Zoo.
`find_zoo_model`(name)	Returns the path to the zoo model on disk.
`get_zoo_model`(name)	Returns the `ZooModel` instance for the model with the given name.
`delete_zoo_model`(name)	Deletes the zoo model from local disk, if necessary.

Exceptions:

ConfigError

Exception raised when an invalid Config instance is encountered.

class fiftyone.zoo.OrderedDict¶

Bases: dict

Dictionary that remembers insertion order

Methods:

`clear`()
`copy`()
`fromkeys`	Create a new ordered dictionary with keys from iterable and values set to value.
`get`	Return the value for key if key is in the dictionary, else default.
`items`()
`keys`()
`move_to_end`	Move an existing element to the end (or beginning if last is false).
`pop`(k[,d])	value.
`popitem`	Remove and return a (key, value) pair from the dictionary.
`setdefault`	Insert key with a value of default if key is not in the dictionary.
`update`([E, ]**F)	If E is present and has a .keys() method, then does: for k in E: D[k] = E[k] If E is present and lacks a .keys() method, then does: for k, v in E: D[k] = v In either case, this is followed by: for k in F: D[k] = F[k]
`values`()

clear() → None. Remove all items from od.¶

popitem()¶

Remove and return a (key, value) pair from the dictionary.

Pairs are returned in LIFO order if last is true or FIFO order if false.

move_to_end()¶

Move an existing element to the end (or beginning if last is false).

Raise KeyError if the element does not exist.

update([E, ]**F) → None. Update D from dict/iterable E and F.¶: If E is present and has a .keys() method, then does: for k in E: D[k] = E[k] If E is present and lacks a .keys() method, then does: for k, v in E: D[k] = v In either case, this is followed by: for k in F: D[k] = F[k]

keys() → a set-like object providing a view on D's keys¶

items() → a set-like object providing a view on D's items¶

values() → an object providing a view on D's values¶

pop(k[, d]) → v, remove specified key and return the corresponding¶: value. If key is not found, d is returned if given, otherwise KeyError is raised.

setdefault()¶

Insert key with a value of default if key is not in the dictionary.

Return the value for key if key is in the dictionary, else default.

copy() → a shallow copy of od¶

fromkeys()¶: Create a new ordered dictionary with keys from iterable and values set to value.

get()¶: Return the value for key if key is in the dictionary, else default.

fiftyone.zoo.list_zoo_datasets(tags=None, source=None)¶

Returns the list of available datasets in the FiftyOne Dataset Zoo.

Example usage:

import fiftyone as fo
import fiftyone.zoo as foz

#
# List all zoo datasets
#

names = foz.list_zoo_datasets()
print(names)

#
# List all zoo datasets with (both of) the specified tags
#

names = foz.list_zoo_datasets(tags=["image", "detection"])
print(names)

#
# List all zoo datasets available via the given source
#

names = foz.list_zoo_datasets(source="torch")
print(names)

Parameters

tags (None) – only include datasets that have the specified tag or list of tags
source (None) – only include datasets available via the given source or list of sources

Returns

a sorted list of dataset names

fiftyone.zoo.list_downloaded_zoo_datasets(base_dir=None)¶

Returns information about the zoo datasets that have been downloaded.

Parameters: base_dir (None) – the base directory to search for downloaded datasets. By default, fo.config.dataset_zoo_dir is used
Returns: a dict mapping dataset names to (dataset dir, ZooDatasetInfo) tuples

fiftyone.zoo.download_zoo_dataset(name, split=None, splits=None, dataset_dir=None, overwrite=False, cleanup=True, **kwargs)¶

Downloads the dataset of the given name from the FiftyOne Dataset Zoo.

Any dataset splits that already exist in the specified directory are not re-downloaded, unless overwrite == True is specified.

Parameters

name – the name of the zoo dataset to download. Call list_zoo_datasets() to see the available datasets
split (None) – ("train", "validation", "test"). If neither split nor splits are provided, all available splits are downloaded. Consult the documentation for the ZooDataset you specified to see the supported splits
splits (None) – a list of splits to download, if applicable. Typical values are ("train", "validation", "test"). If neither split nor splits are provided, all available splits are downloaded. Consult the documentation for the ZooDataset you specified to see the supported splits
dataset_dir (None) – the directory into which to download the dataset. By default, it is downloaded to a subdirectory of fiftyone.config.dataset_zoo_dir
overwrite (False) – whether to overwrite any existing files
cleanup (True) – whether to cleanup any temporary files generated during download
**kwargs – optional arguments for the ZooDataset constructor

Returns

tuple of

info: the ZooDatasetInfo for the dataset
dataset_dir: the directory containing the dataset

fiftyone.zoo.load_zoo_dataset(name, split=None, splits=None, label_field=None, dataset_name=None, dataset_dir=None, download_if_necessary=True, drop_existing_dataset=False, overwrite=False, cleanup=True, **kwargs)¶

Loads the dataset of the given name from the FiftyOne Dataset Zoo as a fiftyone.core.dataset.Dataset.

By default, the dataset will be downloaded if it does not already exist in the specified directory.

If you do not specify a custom dataset_name and you have previously loaded the same zoo dataset and split(s) into FiftyOne, the existing fiftyone.core.dataset.Dataset will be returned.

Parameters

name – the name of the zoo dataset to load. Call list_zoo_datasets() to see the available datasets
split (None) – ("train", "validation", "test"). If neither split nor splits are provided, all available splits are loaded. Consult the documentation for the ZooDataset you specified to see the supported splits
splits (None) – a list of splits to load, if applicable. Typical values are ("train", "validation", "test"). If neither split nor splits are provided, all available splits are loaded. Consult the documentation for the ZooDataset you specified to see the supported splits
label_field (None) – the label field (or prefix, if the dataset contains multiple label fields) in which to store the dataset’s labels. By default, this is "ground_truth" if the dataset contains a single label field. If the dataset contains multiple label fields and this value is not provided, the labels will be stored under dataset-specific field names
dataset_name (None) – an optional name to give the returned fiftyone.core.dataset.Dataset. By default, a name will be constructed based on the dataset and split(s) you are loading
dataset_dir (None) – the directory in which the dataset is stored or will be downloaded. By default, the dataset will be located in fiftyone.config.dataset_zoo_dir
download_if_necessary (True) – whether to download the dataset if it is not found in the specified dataset directory
drop_existing_dataset (False) – whether to drop an existing dataset with the same name if it exists
overwrite (False) – whether to overwrite any existing files if the dataset is to be downloaded
cleanup (True) – whether to cleanup any temporary files generated during download
**kwargs – optional arguments to pass to the fiftyone.utils.data.importers.DatasetImporter constructor. If download_if_necessary == True, then kwargs can also contain arguments for download_zoo_dataset()

Returns

a fiftyone.core.dataset.Dataset

fiftyone.zoo.find_zoo_dataset(name, split=None)¶

Returns the directory containing the given zoo dataset.

If a split is provided, the path to the dataset split is returned; otherwise, the path to the root directory is returned.

The dataset must be downloaded. Use download_zoo_dataset() to download datasets.

Parameters

name – the name of the zoo dataset
split (None) –

Returns

the directory containing the dataset

Raises

ValueError – if the dataset or split does not exist or has not been downloaded

fiftyone.zoo.load_zoo_dataset_info(name, dataset_dir=None)¶

Loads the ZooDatasetInfo for the specified zoo dataset.

The dataset must be downloaded. Use download_zoo_dataset() to download datasets.

Parameters

name – the name of the zoo dataset
dataset_dir (None) – the directory in which the dataset is stored. By default, the dataset is located in fiftyone.config.dataset_zoo_dir

Returns

the ZooDatasetInfo for the dataset

Raises

ValueError – if the dataset has not been downloaded

fiftyone.zoo.get_zoo_dataset(name, **kwargs)¶

Returns the ZooDataset instance for the dataset with the given name.

If the dataset is available from multiple sources, the default source is used.

Parameters

name – the name of the zoo dataset
**kwargs – optional arguments for ZooDataset

Returns

the ZooDataset instance

fiftyone.zoo.delete_zoo_dataset(name, split=None)¶

Deletes the zoo dataset from local disk, if necessary.

If a split is provided, only that split is deleted.

Parameters

name – the name of the zoo dataset
split (None) –

class fiftyone.zoo.ZooDatasetInfo(zoo_dataset, dataset_type, num_samples, downloaded_splits=None, parameters=None, classes=None)¶

Bases: eta.core.serial.Serializable

Class containing info about a dataset in the FiftyOne Dataset Zoo.

Parameters

zoo_dataset – the ZooDataset instance for the dataset
dataset_type – the fiftyone.types.Dataset type of the dataset
num_samples – the total number of samples in all downloaded splits of the dataset
downloaded_splits (None) – a dict of ZooDatasetSplitInfo instances describing the downloaded splits of the dataset, if applicable
parameters (None) – a dict of parameters for the dataset
classes (None) – a list of class label strings

Methods:

`add_split`(split_info)	Adds the split to the dataset.
`attributes`()	Returns a list of class attributes to be serialized.
`copy`()	Returns a deep copy of the object.
`custom_attributes`([dynamic, private])	Returns a customizable list of class attributes.
`from_dict`(d)	Loads a `ZooDatasetInfo` from a JSON dictionary.
`from_json`(json_path[, upgrade, warn_deprecated])	Loads a `ZooDatasetInfo` from a JSON file on disk.
`from_str`(s, args, *kwargs)	Constructs a Serializable object from a JSON string.
`get_class_name`()	Returns the fully-qualified class name string of this object.
`get_dataset_type`()	Returns the `fiftyone.types.Dataset` type instance for the dataset.
`get_zoo_dataset`()	Returns the `ZooDataset` instance for the dataset.
`is_split_downloaded`(split)	Whether the given dataset split is downloaded.
`remove_split`(split)	Removes the split from the dataset.
`serialize`([reflective])	Serializes the object into a dictionary.
`to_str`([pretty_print])	Returns a string representation of this object.
`write_json`(path[, pretty_print])	Serializes the object and writes it to disk.

Attributes:

`dataset_type`	The fully-qualified class string of the `fiftyone.types.Dataset` type.
`name`	The name of the dataset.
`supported_splits`	A tuple of supported splits for the dataset, or None if the dataset does not have splits.
`zoo_dataset`	The fully-qualified class string for the `ZooDataset` of the dataset.

property name¶: The name of the dataset.

property zoo_dataset¶: The fully-qualified class string for the ZooDataset of the dataset.

property dataset_type¶: The fully-qualified class string of the fiftyone.types.Dataset type.

property supported_splits¶: A tuple of supported splits for the dataset, or None if the dataset does not have splits.

get_zoo_dataset()¶

Returns the ZooDataset instance for the dataset.

Returns: a ZooDataset instance

get_dataset_type()¶

Returns the fiftyone.types.Dataset type instance for the dataset.

Returns: a fiftyone.types.Dataset instance

is_split_downloaded(split)¶

Whether the given dataset split is downloaded.

Parameters: split – the dataset split
Returns: True/False

add_split(split_info)¶

Adds the split to the dataset.

Parameters: split_info – a ZooDatasetSplitInfo

remove_split(split)¶

Removes the split from the dataset.

Parameters: split – the name of the split

attributes()¶

Returns a list of class attributes to be serialized.

Returns: a list of class attributes

classmethod from_dict(d)¶

Loads a ZooDatasetInfo from a JSON dictionary.

Parameters: d – a JSON dictionary
Returns: a ZooDatasetInfo

classmethod from_json(json_path, upgrade=False, warn_deprecated=False)¶

Loads a ZooDatasetInfo from a JSON file on disk.

Parameters

json_path – path to JSON file
upgrade (False) – whether to upgrade the JSON file on disk if any migrations were necessary
warn_deprecated (False) – whether to issue a warning if the dataset has a deprecated format

Returns

a ZooDatasetInfo

copy()¶

Returns a deep copy of the object.

Returns: a Serializable instance

custom_attributes(dynamic=False, private=False)¶

Returns a customizable list of class attributes.

By default, all attributes in vars(self) are returned, minus private attributes (those starting with “_”).

Parameters

dynamic – whether to include dynamic properties, e.g., those defined by getter/setter methods or the @property decorator. By default, this is False
private – whether to include private properties, i.e., those starting with “_”. By default, this is False

Returns

a list of class attributes

classmethod from_str(s, *args, **kwargs)¶

Constructs a Serializable object from a JSON string.

Subclasses may override this method, but, by default, this method simply parses the string and calls from_dict(), which subclasses must implement.

Parameters

s – a JSON string representation of a Serializable object
*args – optional positional arguments for self.from_dict()
**kwargs – optional keyword arguments for self.from_dict()

Returns

an instance of the Serializable class

classmethod get_class_name()¶: Returns the fully-qualified class name string of this object.

serialize(reflective=False)¶

Serializes the object into a dictionary.

Serialization is applied recursively to all attributes in the object, including element-wise serialization of lists and dictionary values.

Parameters: reflective – whether to include reflective attributes when serializing the object. By default, this is False
Returns: a JSON dictionary representation of the object

to_str(pretty_print=True, **kwargs)¶

Returns a string representation of this object.

Parameters

pretty_print – whether to render the JSON in human readable format with newlines and indentations. By default, this is True
**kwargs – optional keyword arguments for self.serialize()

Returns

a string representation of the object

write_json(path, pretty_print=False, **kwargs)¶

Serializes the object and writes it to disk.

Parameters

path – the output path
pretty_print – whether to render the JSON in human readable format with newlines and indentations. By default, this is False
**kwargs – optional keyword arguments for self.serialize()

class fiftyone.zoo.ZooDatasetSplitInfo(split, num_samples)¶

Bases: eta.core.serial.Serializable

Class containing info about a split of a dataset in the FiftyOne Dataset Zoo.

Parameters

split – the name of the split
num_samples – the number of samples in the split

Methods:

`attributes`()	Returns a list of class attributes to be serialized.
`copy`()	Returns a deep copy of the object.
`custom_attributes`([dynamic, private])	Returns a customizable list of class attributes.
`from_dict`(d)	Loads a `ZooDatasetSplitInfo` from a JSON dictionary.
`from_json`(path, args, *kwargs)	Constructs a Serializable object from a JSON file.
`from_str`(s, args, *kwargs)	Constructs a Serializable object from a JSON string.
`get_class_name`()	Returns the fully-qualified class name string of this object.
`serialize`([reflective])	Serializes the object into a dictionary.
`to_str`([pretty_print])	Returns a string representation of this object.
`write_json`(path[, pretty_print])	Serializes the object and writes it to disk.

attributes()¶

Returns a list of class attributes to be serialized.

Returns: a list of class attributes

classmethod from_dict(d)¶

Loads a ZooDatasetSplitInfo from a JSON dictionary.

Parameters: d – a JSON dictionary
Returns: a ZooDatasetSplitInfo

copy()¶

Returns a deep copy of the object.

Returns: a Serializable instance

custom_attributes(dynamic=False, private=False)¶

Returns a customizable list of class attributes.

By default, all attributes in vars(self) are returned, minus private attributes (those starting with “_”).

Parameters

dynamic – whether to include dynamic properties, e.g., those defined by getter/setter methods or the @property decorator. By default, this is False
private – whether to include private properties, i.e., those starting with “_”. By default, this is False

Returns

a list of class attributes

classmethod from_json(path, *args, **kwargs)¶

Constructs a Serializable object from a JSON file.

Subclasses may override this method, but, by default, this method simply reads the JSON and calls from_dict(), which subclasses must implement.

Parameters

path – the path to the JSON file on disk
*args – optional positional arguments for self.from_dict()
**kwargs – optional keyword arguments for self.from_dict()

Returns

an instance of the Serializable class

classmethod from_str(s, *args, **kwargs)¶

Constructs a Serializable object from a JSON string.

Subclasses may override this method, but, by default, this method simply parses the string and calls from_dict(), which subclasses must implement.

Parameters

s – a JSON string representation of a Serializable object
*args – optional positional arguments for self.from_dict()
**kwargs – optional keyword arguments for self.from_dict()

Returns

an instance of the Serializable class

classmethod get_class_name()¶: Returns the fully-qualified class name string of this object.

serialize(reflective=False)¶

Serializes the object into a dictionary.

Serialization is applied recursively to all attributes in the object, including element-wise serialization of lists and dictionary values.

Parameters: reflective – whether to include reflective attributes when serializing the object. By default, this is False
Returns: a JSON dictionary representation of the object

to_str(pretty_print=True, **kwargs)¶

Returns a string representation of this object.

Parameters

pretty_print – whether to render the JSON in human readable format with newlines and indentations. By default, this is True
**kwargs – optional keyword arguments for self.serialize()

Returns

a string representation of the object

write_json(path, pretty_print=False, **kwargs)¶

Serializes the object and writes it to disk.

Parameters

path – the output path
pretty_print – whether to render the JSON in human readable format with newlines and indentations. By default, this is False
**kwargs – optional keyword arguments for self.serialize()

class fiftyone.zoo.ZooDataset¶

Bases: object

Base class for datasets made available in the FiftyOne Dataset Zoo.

Methods:

`download_and_prepare`([dataset_dir, split, …])	Downloads the dataset and prepares it for use.
`get_info_path`(dataset_dir)	Returns the path to the `ZooDatasetInfo` for the dataset.
`get_split_dir`(dataset_dir, split)	Returns the directory for the given split of the dataset.
`has_split`(split)	Whether the dataset has the given split.
`has_tag`(tag)	Whether the dataset has the given tag.
`load_info`(dataset_dir[, upgrade, …])	Loads the `ZooDatasetInfo` from the given dataset directory.

Attributes:

`has_patches`	Whether the dataset has patches that may need to be applied to already downloaded files.
`has_splits`	Whether the dataset has splits.
`has_tags`	Whether the dataset has tags.
`importer_kwargs`	A dict of default kwargs to pass to this dataset’s `fiftyone.utils.data.importers.DatasetImporter`.
`name`	The name of the dataset.
`parameters`	An optional dict of parameters describing the configuration of the zoo dataset when it was downloaded.
`requires_manual_download`	Whether this dataset requires some files to be manually downloaded by the user before the dataset can be loaded.
`supported_splits`	A tuple of supported splits for the dataset, or None if the dataset does not have splits.
`supports_partial_downloads`	Whether the dataset supports downloading partial subsets of its splits.
`tags`	A tuple of tags for the dataset.

property name¶: The name of the dataset.

property tags¶: A tuple of tags for the dataset.

property has_tags¶: Whether the dataset has tags.

property parameters¶: An optional dict of parameters describing the configuration of the zoo dataset when it was downloaded.

property supported_splits¶: A tuple of supported splits for the dataset, or None if the dataset does not have splits.

property has_splits¶: Whether the dataset has splits.

property has_patches¶: Whether the dataset has patches that may need to be applied to already downloaded files.

property supports_partial_downloads¶: Whether the dataset supports downloading partial subsets of its splits.

property requires_manual_download¶: Whether this dataset requires some files to be manually downloaded by the user before the dataset can be loaded.

property importer_kwargs¶: A dict of default kwargs to pass to this dataset’s fiftyone.utils.data.importers.DatasetImporter.

has_tag(tag)¶

Whether the dataset has the given tag.

Parameters: tag – the tag
Returns: True/False

has_split(split)¶

Whether the dataset has the given split.

Parameters: split – the dataset split
Returns: True/False

get_split_dir(dataset_dir, split)¶

Returns the directory for the given split of the dataset.

Parameters

dataset_dir – the dataset directory
split – the dataset split

Returns

the directory that will/does hold the specified split

static load_info(dataset_dir, upgrade=True, warn_deprecated=False)¶

Loads the ZooDatasetInfo from the given dataset directory.

Parameters

dataset_dir – the directory in which to construct the dataset
upgrade (True) – whether to upgrade the JSON file on disk if any migrations were necessary
warn_deprecated (False) – whether to issue a warning if the dataset has a deprecated format

Returns

the ZooDatasetInfo for the dataset

static get_info_path(dataset_dir)¶

Returns the path to the ZooDatasetInfo for the dataset.

Parameters: dataset_dir – the dataset directory
Returns: the path to the ZooDatasetInfo

download_and_prepare(dataset_dir=None, split=None, splits=None, overwrite=False, cleanup=True)¶

Downloads the dataset and prepares it for use.

If the requested splits have already been downloaded, they are not re-downloaded unless overwrite is True.

Parameters

dataset_dir (None) – the directory in which to construct the dataset. By default, it is written to a subdirectory of fiftyone.config.dataset_zoo_dir
split (None) – split nor splits are provided, the full dataset is downloaded
splits (None) – a list of splits to download, if applicable. If neither split nor splits are provided, the full dataset is downloaded
overwrite (False) – whether to overwrite any existing files
cleanup (True) – whether to cleanup any temporary files generated during download

Returns

tuple of

info: the ZooDatasetInfo for the dataset
dataset_dir: the directory containing the dataset

class fiftyone.zoo.DeprecatedZooDataset¶

Bases: fiftyone.zoo.datasets.ZooDataset

Class representing a zoo dataset that no longer exists in the FiftyOne Dataset Zoo.

Methods:

`download_and_prepare`([dataset_dir, split, …])	Downloads the dataset and prepares it for use.
`get_info_path`(dataset_dir)	Returns the path to the `ZooDatasetInfo` for the dataset.
`get_split_dir`(dataset_dir, split)	Returns the directory for the given split of the dataset.
`has_split`(split)	Whether the dataset has the given split.
`has_tag`(tag)	Whether the dataset has the given tag.
`load_info`(dataset_dir[, upgrade, …])	Loads the `ZooDatasetInfo` from the given dataset directory.

Attributes:

`has_patches`	Whether the dataset has patches that may need to be applied to already downloaded files.
`has_splits`	Whether the dataset has splits.
`has_tags`	Whether the dataset has tags.
`importer_kwargs`	A dict of default kwargs to pass to this dataset’s `fiftyone.utils.data.importers.DatasetImporter`.
`name`	The name of the dataset.
`parameters`	An optional dict of parameters describing the configuration of the zoo dataset when it was downloaded.
`requires_manual_download`	Whether this dataset requires some files to be manually downloaded by the user before the dataset can be loaded.
`supported_splits`	A tuple of supported splits for the dataset, or None if the dataset does not have splits.
`supports_partial_downloads`	Whether the dataset supports downloading partial subsets of its splits.
`tags`	A tuple of tags for the dataset.

property name¶: The name of the dataset.

property supported_splits¶: A tuple of supported splits for the dataset, or None if the dataset does not have splits.

download_and_prepare(dataset_dir=None, split=None, splits=None, overwrite=False, cleanup=True)¶

Downloads the dataset and prepares it for use.

If the requested splits have already been downloaded, they are not re-downloaded unless overwrite is True.

Parameters

dataset_dir (None) – the directory in which to construct the dataset. By default, it is written to a subdirectory of fiftyone.config.dataset_zoo_dir
split (None) – split nor splits are provided, the full dataset is downloaded
splits (None) – a list of splits to download, if applicable. If neither split nor splits are provided, the full dataset is downloaded
overwrite (False) – whether to overwrite any existing files
cleanup (True) – whether to cleanup any temporary files generated during download

Returns

tuple of

info: the ZooDatasetInfo for the dataset
dataset_dir: the directory containing the dataset

static get_info_path(dataset_dir)¶

Returns the path to the ZooDatasetInfo for the dataset.

Parameters: dataset_dir – the dataset directory
Returns: the path to the ZooDatasetInfo

get_split_dir(dataset_dir, split)¶

Returns the directory for the given split of the dataset.

Parameters

dataset_dir – the dataset directory
split – the dataset split

Returns

the directory that will/does hold the specified split

property has_patches¶: Whether the dataset has patches that may need to be applied to already downloaded files.

has_split(split)¶

Whether the dataset has the given split.

Parameters: split – the dataset split
Returns: True/False

property has_splits¶: Whether the dataset has splits.

has_tag(tag)¶

Whether the dataset has the given tag.

Parameters: tag – the tag
Returns: True/False

property has_tags¶: Whether the dataset has tags.

property importer_kwargs¶: A dict of default kwargs to pass to this dataset’s fiftyone.utils.data.importers.DatasetImporter.

static load_info(dataset_dir, upgrade=True, warn_deprecated=False)¶

Loads the ZooDatasetInfo from the given dataset directory.

Parameters

dataset_dir – the directory in which to construct the dataset
upgrade (True) – whether to upgrade the JSON file on disk if any migrations were necessary
warn_deprecated (False) – whether to issue a warning if the dataset has a deprecated format

Returns

the ZooDatasetInfo for the dataset

property parameters¶: An optional dict of parameters describing the configuration of the zoo dataset when it was downloaded.

property requires_manual_download¶: Whether this dataset requires some files to be manually downloaded by the user before the dataset can be loaded.

property supports_partial_downloads¶: Whether the dataset supports downloading partial subsets of its splits.

property tags¶: A tuple of tags for the dataset.

class fiftyone.zoo.defaultdict¶

Bases: dict

defaultdict(default_factory[, …]) –> dict with default factory

The default factory is called without arguments to produce a new value when a key is not present, in __getitem__ only. A defaultdict compares equal to a dict with the same items. All remaining arguments are treated the same as if they were passed to the dict constructor, including keyword arguments.

Methods:

`clear`()
`copy`()
`fromkeys`	Create a new dictionary with keys from iterable and values set to value.
`get`	Return the value for key if key is in the dictionary, else default.
`items`()
`keys`()
`pop`(k[,d])	If key is not found, d is returned if given, otherwise KeyError is raised
`popitem`	Remove and return a (key, value) pair as a 2-tuple.
`setdefault`	Insert key with a value of default if key is not in the dictionary.
`update`([E, ]**F)	If E is present and has a .keys() method, then does: for k in E: D[k] = E[k] If E is present and lacks a .keys() method, then does: for k, v in E: D[k] = v In either case, this is followed by: for k in F: D[k] = F[k]
`values`()

Attributes:

default_factory

Factory for default value called by __missing__().

clear() → None. Remove all items from D.¶

copy() → a shallow copy of D.¶

default_factory¶: Factory for default value called by __missing__().

fromkeys()¶: Create a new dictionary with keys from iterable and values set to value.

get()¶: Return the value for key if key is in the dictionary, else default.

items() → a set-like object providing a view on D's items¶

keys() → a set-like object providing a view on D's keys¶

pop(k[, d]) → v, remove specified key and return the corresponding value.¶: If key is not found, d is returned if given, otherwise KeyError is raised

popitem()¶

Remove and return a (key, value) pair as a 2-tuple.

Pairs are returned in LIFO (last-in, first-out) order. Raises KeyError if the dict is empty.

setdefault()¶

Insert key with a value of default if key is not in the dictionary.

Return the value for key if key is in the dictionary, else default.

update([E, ]**F) → None. Update D from dict/iterable E and F.¶: If E is present and has a .keys() method, then does: for k in E: D[k] = E[k] If E is present and lacks a .keys() method, then does: for k, v in E: D[k] = v In either case, this is followed by: for k in F: D[k] = F[k]

values() → an object providing a view on D's values¶

fiftyone.zoo.deepcopy(x, memo=None, _nil=[])¶

Deep copy operation on arbitrary Python objects.

See the module’s __doc__ string for more info.

exception fiftyone.zoo.ConfigError¶

Bases: Exception

Exception raised when an invalid Config instance is encountered.

args¶

with_traceback()¶: Exception.with_traceback(tb) – set self.__traceback__ to tb and return self.

fiftyone.zoo.list_zoo_models()¶

Returns the list of available models in the FiftyOne Model Zoo.

Returns: a list of model names

fiftyone.zoo.list_downloaded_zoo_models()¶

Returns information about the zoo models that have been downloaded.

Returns: a dict mapping model names to (model path, ZooModel) tuples

fiftyone.zoo.is_zoo_model_downloaded(name)¶

Determines whether the zoo model of the given name is downloaded.

Parameters: name – the name of the zoo model, which can have @<ver> appended to refer to a specific version of the model. If no version is specified, the latest version of the model is used
Returns: True/False

fiftyone.zoo.download_zoo_model(name, overwrite=False)¶

Downloads the model of the given name from the FiftyOne Dataset Zoo.

If the model is already downloaded, it is not re-downloaded unless overwrite == True is specified.

Parameters

name – the name of the zoo model, which can have @<ver> appended to refer to a specific version of the model. If no version is specified, the latest version of the model is used. Call list_zoo_models() to see the available models
overwrite (False) – whether to overwrite any existing files

Returns

tuple of

model: the ZooModel for the model
model_path: the path to the downloaded model on disk

fiftyone.zoo.install_zoo_model_requirements(name, error_level=None)¶

Installs any package requirements for the zoo model with the given name.

Parameters

name – the name of the zoo model, which can have @<ver> appended to refer to a specific version of the model. If no version is specified, the latest version of the model is used. Call list_zoo_models() to see the available models
error_level (None) –
the error level to use, defined as:
- 0: raise error if a requirement install fails
- 1: log warning if a requirement install fails
- 2: ignore install fails requirements
By default, fo.config.requirement_error_level is used

fiftyone.zoo.ensure_zoo_model_requirements(name, error_level=None, log_success=True)¶

Ensures that the package requirements for the zoo model with the given name are satisfied.

Parameters

name – the name of the zoo model, which can have @<ver> appended to refer to a specific version of the model. If no version is specified, the latest version of the model is used. Call list_zoo_models() to see the available models
error_level (None) –
the error level to use when installing/ensuring requirements, defined as:
- 0: raise error if a requirement is not satisfied
- 1: log warning if a requirement is not satisifed
- 2: ignore unsatisifed requirements
By default, fo.config.requirement_error_level is used
log_success (True) – whether to generate a log message when a requirement is satisifed

fiftyone.zoo.load_zoo_model(name, download_if_necessary=True, install_requirements=False, error_level=None, cache=True, **kwargs)¶

Loads the model of the given name from the FiftyOne Model Zoo.

By default, the model will be downloaded if necessary if it does not exist in fiftyone.config.model_zoo_dir.

Parameters

name – the name of the zoo model, which can have @<ver> appended to refer to a specific version of the model. If no version is specified, the latest version of the model is downloaded. Call list_zoo_models() to see the available models
download_if_necessary (True) – whether to download the model if it is not found in the specified directory
install_requirements – whether to install any requirements before loading the model. By default, this is False
error_level (None) –
the error level to use when installing/ensuring requirements, defined as:
- 0: raise error if a requirement is not satisfied
- 1: log warning if a requirement is not satisifed
- 2: ignore unsatisifed requirements
By default, fo.config.requirement_error_level is used
cache (True) – whether to store a weak reference to the model so that running this method again will return the same instance while the model is still in use. If False, no weak reference is stored/used
**kwargs – keyword arguments to inject into the model’s Config instance

Returns

a fiftyone.core.models.Model

fiftyone.zoo.find_zoo_model(name)¶

Returns the path to the zoo model on disk.

The model must be downloaded. Use download_zoo_model() to download models.

Parameters: name – the name of the zoo model, which can have @<ver> appended to refer to a specific version of the model. If no version is specified, the latest version of the model is used
Returns: the path to the model on disk
Raises: ValueError – if the model does not exist or has not been downloaded

fiftyone.zoo.get_zoo_model(name)¶

Returns the ZooModel instance for the model with the given name.

Parameters: name – the name of the zoo model
Returns: a ZooModel

fiftyone.zoo.delete_zoo_model(name)¶

Deletes the zoo model from local disk, if necessary.

Parameters: name – the name of the zoo model, which can have @<ver> appended to refer to a specific version of the model. If no version is specified, the latest version of the model is used

class fiftyone.zoo.HasZooModel¶

Bases: eta.core.learning.HasPublishedModel

Mixin class for Config classes of fiftyone.core.models.Model instances whose models are stored in the FiftyOne Model Zoo.

This class provides the following functionality:

The model to load can be specified either by:
1. providing a model_name, which specifies the zoo model to load. The model will be downloaded, if necessary
2. providing a model_path, which directly specifies the path to the model to load
fiftyone.core.models.ModelConfig definitions that use zoo models with default deployments will have default values for any unspecified parameters loaded and applied at runtime

Parameters

model_name – the name of the zoo model to load. If this value is provided, model_path does not need to be
model_path – the path to an already downloaded zoo model on disk to load. If this value is provided, model_name does not need to be

Methods:

`download_model_if_necessary`()	Downloads the published model specified by the config, if necessary.
`init`(d)	Initializes the published model config.

download_model_if_necessary()¶

Downloads the published model specified by the config, if necessary.

After this method is called, the model_path attribute will always contain the path to the model on disk.

init(d)¶

Initializes the published model config.

This method should be called by ModelConfig.__init__(), and it performs the following tasks:

Parses the model_name and model_path parameters
Populates any default parameters in the provided ModelConfig dict

Parameters: d – a ModelConfig dict
Returns: a ModelConfig dict with any default parameters populated

class fiftyone.zoo.ZooModel(base_name, base_filename, manager, version=None, description=None, source=None, size_bytes=None, default_deployment_config_dict=None, requirements=None, tags=None, date_added=None)¶

Bases: eta.core.models.Model

Class describing a model in the FiftyOne Model Zoo.

Parameters

base_name – the base name of the model (no version info)
base_filename – the base filename of the model (no version info)
manager – the fiftyone.core.models.ModelManager instance that describes the remote storage location of the model
version (None) – the version of the model
description (None) – the description of the model
source (None) – the source of the model
size_bytes (None) – the size of the model on disk
default_deployment_config_dict (None) – a fiftyone.core.models.ModelConfig dict describing the recommended settings for deploying the model
requirements (None) – the eta.core.models.ModelRequirements for the model
tags (None) – a list of tags for the model
date_added (None) – the datetime that the model was added to the zoo

Methods:

`attributes`()	Returns a list of class attributes to be serialized.
`copy`()	Returns a deep copy of the object.
`custom_attributes`([dynamic, private])	Returns a customizable list of class attributes.
`ensure_requirements`([error_level, log_success])	Ensures that any requirement(s) for this model are satisfied.
`flush_model`(model_path)	Flushes the copy of the model at the given local path, if necessary.
`flush_model_from_dir`(models_dir)	Flushes the copy of the model in the given models directory, if necessary.
`from_dict`(d)	Constructs a Model from a JSON dictionary.
`from_json`(path, args, *kwargs)	Constructs a Serializable object from a JSON file.
`from_str`(s, args, *kwargs)	Constructs a Serializable object from a JSON string.
`get_class_name`()	Returns the fully-qualified class name string of this object.
`get_path_in_dir`(models_dir)	Gets the model path for the model in the given models directory.
`has_tag`(tag)	Whether this model has the given tag.
`has_version_str`(name)	Determines whether the given model name has a version string.
`install_requirements`([error_level])	Installs any necessary requirement(s) for this model.
`is_in_dir`(models_dir)	Determines whether a copy of the model exists in the given models directory.
`is_model_downloaded`(model_path)	Determines whether the model is downloaded to the given location.
`parse_name`(name)	Parses the model name, returning the base name and the version, if any.
`serialize`([reflective])	Serializes the object into a dictionary.
`to_str`([pretty_print])	Returns a string representation of this object.
`write_json`(path[, pretty_print])	Serializes the object and writes it to disk.

Attributes:

`comp_version`	The version of this model expressed as a distutils.version.LooseVersion intended for comparison operations.
`filename`	The version-aware filename of the model.
`has_requirements`	Whether this model has requirements in order to be used.
`has_tags`	Whether this model has tags.
`has_version`	Determines whether the model has a version.
`name`	The version-aware name of the model.
`supports_cpu`	Whether the model supports CPU (True), or not (False), or unknown (None).
`supports_gpu`	Whether the model supports GPU (True), or not (False), or unknown (None).

attributes()¶

Returns a list of class attributes to be serialized.

Returns: a list of class attributes

property comp_version¶

The version of this model expressed as a distutils.version.LooseVersion intended for comparison operations.

Models with no version are given a version of 0.0.0.

copy()¶

Returns a deep copy of the object.

Returns: a Serializable instance

custom_attributes(dynamic=False, private=False)¶

Returns a customizable list of class attributes.

By default, all attributes in vars(self) are returned, minus private attributes (those starting with “_”).

Parameters

dynamic – whether to include dynamic properties, e.g., those defined by getter/setter methods or the @property decorator. By default, this is False
private – whether to include private properties, i.e., those starting with “_”. By default, this is False

Returns

a list of class attributes

ensure_requirements(error_level=0, log_success=False)¶

Ensures that any requirement(s) for this model are satisfied.

Parameters

error_level –
the error level to use, defined as:

0: raise error if a requirement is not satisfied 1: log warning if a requirement is not satisifed 2: ignore unsatisifed requirements
log_success – whether to generate a log message when a requirement is satisifed

property filename¶: The version-aware filename of the model.

flush_model(model_path)¶

Flushes the copy of the model at the given local path, if necessary.

Parameters: model_path – the path on disk for the model

flush_model_from_dir(models_dir)¶

Flushes the copy of the model in the given models directory, if necessary.

Parameters: models_dir – the models directory

classmethod from_dict(d)¶

Constructs a Model from a JSON dictionary.

Parameters: d – a JSON dictionary
Returns: a Model instance

classmethod from_json(path, *args, **kwargs)¶

Constructs a Serializable object from a JSON file.

Subclasses may override this method, but, by default, this method simply reads the JSON and calls from_dict(), which subclasses must implement.

Parameters

path – the path to the JSON file on disk
*args – optional positional arguments for self.from_dict()
**kwargs – optional keyword arguments for self.from_dict()

Returns

an instance of the Serializable class

classmethod from_str(s, *args, **kwargs)¶

Constructs a Serializable object from a JSON string.

Subclasses may override this method, but, by default, this method simply parses the string and calls from_dict(), which subclasses must implement.

Parameters

s – a JSON string representation of a Serializable object
*args – optional positional arguments for self.from_dict()
**kwargs – optional keyword arguments for self.from_dict()

Returns

an instance of the Serializable class

classmethod get_class_name()¶: Returns the fully-qualified class name string of this object.

get_path_in_dir(models_dir)¶

Gets the model path for the model in the given models directory.

Parameters: models_dir – the models directory
Returns: the model path

property has_requirements¶: Whether this model has requirements in order to be used.

has_tag(tag)¶

Whether this model has the given tag.

Parameters: tag – a tag
Returns: True/False

property has_tags¶: Whether this model has tags.

property has_version¶: Determines whether the model has a version.

static has_version_str(name)¶

Determines whether the given model name has a version string.

Parameters: name – the model name
Returns: True/False

install_requirements(error_level=0)¶

Installs any necessary requirement(s) for this model.

Parameters

error_level –

the error level to use, defined as:

0: raise error if an install fails 1: log warning if an install fails 2: ignore install fails

is_in_dir(models_dir)¶

Determines whether a copy of the model exists in the given models directory.

Parameters: models_dir – the models directory
Returns: True/False

is_model_downloaded(model_path)¶

Determines whether the model is downloaded to the given location.

If model_path is an archive, this method will also return True if a directory with the same basename as model_path exists.

Parameters: model_path – the path on disk for the model
Returns: True/False

property name¶: The version-aware name of the model.

static parse_name(name)¶

Parses the model name, returning the base name and the version, if any.

Parameters: name – the name of the model, which can have “@<ver>” appended to refer to a specific version of the model
Returns: the base name of the model version: the version of the model, or None if no version was found
Return type: base_name
Raises: ModelError – if the model name was invalid

serialize(reflective=False)¶

Serializes the object into a dictionary.

Serialization is applied recursively to all attributes in the object, including element-wise serialization of lists and dictionary values.

Parameters: reflective – whether to include reflective attributes when serializing the object. By default, this is False
Returns: a JSON dictionary representation of the object

property supports_cpu¶: Whether the model supports CPU (True), or not (False), or unknown (None).

property supports_gpu¶: Whether the model supports GPU (True), or not (False), or unknown (None).

to_str(pretty_print=True, **kwargs)¶

Returns a string representation of this object.

Parameters

pretty_print – whether to render the JSON in human readable format with newlines and indentations. By default, this is True
**kwargs – optional keyword arguments for self.serialize()

Returns

a string representation of the object

write_json(path, pretty_print=False, **kwargs)¶

Serializes the object and writes it to disk.

Parameters

path – the output path
pretty_print – whether to render the JSON in human readable format with newlines and indentations. By default, this is False
**kwargs – optional keyword arguments for self.serialize()

class fiftyone.zoo.ZooModelsManifest(models=None)¶

Bases: eta.core.models.ModelsManifest

Class that describes the collection of models in the FiftyOne Model Zoo.

Parameters: models – a list of ZooModel instances

Methods:

`add_model`(model)	Adds the given model to the manifest.
`attributes`()	Returns a list of class attributes to be serialized.
`copy`()	Returns a deep copy of the object.
`custom_attributes`([dynamic, private])	Returns a customizable list of class attributes.
`dir_has_manifest`(models_dir)	Determines whether the given directory has a models manifest.
`from_dict`(d)	Constructs a ModelsManifest from a JSON dictionary.
`from_dir`(models_dir)	Loads the ModelsManifest from the given models directory.
`from_json`(path, args, *kwargs)	Constructs a Serializable object from a JSON file.
`from_str`(s, args, *kwargs)	Constructs a Serializable object from a JSON string.
`get_class_name`()	Returns the fully-qualified class name string of this object.
`get_latest_model_with_base_name`(base_name)	Gets the Model instance for the latest version of the model with the given base name.
`get_model_with_name`(name)	Gets the model with the given name.
`has_model_with_filename`(filename)	Determines whether this manifest contains a model with the given filename.
`has_model_with_name`(name)	Determines whether this manifest contains the model with the given name.
`make_manifest_path`(models_dir)	Makes the manifest path for the given models directory.
`merge`(models_manifest)	Merges the models manifest into this one.
`remove_model`(name)	Removes the model with the given name from the ModelsManifest.
`serialize`([reflective])	Serializes the object into a dictionary.
`to_str`([pretty_print])	Returns a string representation of this object.
`write_json`(path[, pretty_print])	Serializes the object and writes it to disk.
`write_to_dir`(models_dir)	Writes the ModelsManifest to the given models directory.

add_model(model)¶

Adds the given model to the manifest.

Parameters: model – a Model instance
Raises: ModelError – if the model conflicts with an existing model in the manifest

attributes()¶

Returns a list of class attributes to be serialized.

This method is called internally by serialize() to determine the class attributes to serialize.

Subclasses can override this method, but, by default, all attributes in vars(self) are returned, minus private attributes, i.e., those starting with “_”. The order of the attributes in this list is preserved when serializing objects, so a common pattern is for subclasses to override this method if they want their JSON files to be organized in a particular way.

Returns: a list of class attributes to be serialized

copy()¶

Returns a deep copy of the object.

Returns: a Serializable instance

custom_attributes(dynamic=False, private=False)¶

Returns a customizable list of class attributes.

By default, all attributes in vars(self) are returned, minus private attributes (those starting with “_”).

Parameters

dynamic – whether to include dynamic properties, e.g., those defined by getter/setter methods or the @property decorator. By default, this is False
private – whether to include private properties, i.e., those starting with “_”. By default, this is False

Returns

a list of class attributes

static dir_has_manifest(models_dir)¶

Determines whether the given directory has a models manifest.

Parameters: models_dir – the models directory
Returns: True/False

classmethod from_dict(d)¶

Constructs a ModelsManifest from a JSON dictionary.

Parameters: d – a JSON dictionary
Returns: a ModelsManifest

classmethod from_dir(models_dir)¶

Loads the ModelsManifest from the given models directory.

Parameters: models_dir – the models directory
Returns: a ModelsManifest

classmethod from_json(path, *args, **kwargs)¶

Constructs a Serializable object from a JSON file.

Subclasses may override this method, but, by default, this method simply reads the JSON and calls from_dict(), which subclasses must implement.

Parameters

path – the path to the JSON file on disk
*args – optional positional arguments for self.from_dict()
**kwargs – optional keyword arguments for self.from_dict()

Returns

an instance of the Serializable class

classmethod from_str(s, *args, **kwargs)¶

Constructs a Serializable object from a JSON string.

Subclasses may override this method, but, by default, this method simply parses the string and calls from_dict(), which subclasses must implement.

Parameters

s – a JSON string representation of a Serializable object
*args – optional positional arguments for self.from_dict()
**kwargs – optional keyword arguments for self.from_dict()

Returns

an instance of the Serializable class

classmethod get_class_name()¶: Returns the fully-qualified class name string of this object.

get_latest_model_with_base_name(base_name)¶

Gets the Model instance for the latest version of the model with the given base name.

Parameters: base_name – the base name of the model
Returns: the Model instance
Raises: ModelError – if the model was not found

get_model_with_name(name)¶

Gets the model with the given name.

Parameters: name – the name of the model
Returns: the Model instance
Raises: ModelError – if the model was not found

has_model_with_filename(filename)¶

Determines whether this manifest contains a model with the given filename.

Parameters: filename – the filename
Returns: True/False

has_model_with_name(name)¶

Determines whether this manifest contains the model with the given name.

Parameters: name – the model name
Returns: True/False

static make_manifest_path(models_dir)¶

Makes the manifest path for the given models directory.

Parameters: models_dir – the models directory
Returns: the manifest path

merge(models_manifest)¶

Merges the models manifest into this one.

Parameters: models_manifest – a ModelsManifest

remove_model(name)¶

Removes the model with the given name from the ModelsManifest.

Parameters: name – the name of the model
Raises: ModelError – if the model was not found

serialize(reflective=False)¶

Serializes the object into a dictionary.

Serialization is applied recursively to all attributes in the object, including element-wise serialization of lists and dictionary values.

Parameters: reflective – whether to include reflective attributes when serializing the object. By default, this is False
Returns: a JSON dictionary representation of the object

to_str(pretty_print=True, **kwargs)¶

Returns a string representation of this object.

Parameters

pretty_print – whether to render the JSON in human readable format with newlines and indentations. By default, this is True
**kwargs – optional keyword arguments for self.serialize()

Returns

a string representation of the object

write_json(path, pretty_print=False, **kwargs)¶

Serializes the object and writes it to disk.

Parameters

path – the output path
pretty_print – whether to render the JSON in human readable format with newlines and indentations. By default, this is False
**kwargs – optional keyword arguments for self.serialize()

write_to_dir(models_dir)¶

Writes the ModelsManifest to the given models directory.

Parameters: models_dir – the models directory