Product

`Product`	A raster product that connects band information to imagery.
`ProductCollection`
`DeletionTaskStatus`	The asynchronous deletion task's status

class Product(*args, **kwargs)[source]

A raster product that connects band information to imagery.

Instantiating a product indicates that you want to create a new Descartes Labs catalog product. If you instead want to retrieve an existing catalog product use Product.get(), or if you’re not sure use Product.get_or_create(). You can also use Product.search(). Also see the example for save().

Parameters:

client (CatalogClient, optional) – A CatalogClient instance to use for requests to the Descartes Labs catalog. The get_default_client() will be used if not set.
kwargs (dict) – With the exception of readonly attributes (created, modified, resolution_min, and resolution_max) and with the exception of properties (ATTRIBUTES, is_modified, and state), any attribute listed below can also be used as a keyword argument. Also see ATTRIBUTES.

Methods:

`bands`([request_params, headers])	A search query for all bands for this product, sorted by default band `sort_order`.
`delete`(id[, client])	Delete the catalog object with the given `id`.
`delete_related_objects`()	Delete all related bands and images for this product.
`exists`(id[, client, headers])	Checks if an object exists in the Descartes Labs catalog.
`get`(id[, client, request_params, headers])	Get an existing object from the Descartes Labs catalog.
`get_band`(name[, client, request_params, headers])	Retrieve the request band associated with this product by name.
`get_delete_status`()	Fetches the status of a deletion task.
`get_image`(name[, client, request_params, ...])	Retrieve the request image associated with this product by name.
`get_many`(ids[, ignore_missing, client, ...])	Get existing objects from the Descartes Labs catalog.
`get_or_create`(id[, client, request_params, ...])	Get an existing object from the Descartes Labs catalog or create a new object.
`image_uploads`()	A search query for all uploads in this product created by this user.
`images`([request_params, headers])	A search query for all images in this product.
`named_id`(name)	Return the ~descarteslabs.catalog.NamedCatalogObject.id` for the given named catalog object.
`namespace_id`(id_[, client])	Generate a fully namespaced id.
`reload`([request_params, headers])	Reload all attributes from the Descartes Labs catalog.
`save`([request_params, headers])	Saves this object to the Descartes Labs catalog.
`search`([client, request_params, headers])	A search query for all objects of the type this class represents.
`serialize`([modified_only, jsonapi_format])	Serialize the catalog object into json.
`update`([ignore_errors])	Update multiple attributes at once using the given keyword arguments.
`user_can_read`([auth])	Check if the authenticated user is an owner, a writer, or a reader and has permissions to read this object.
`user_can_write`([auth])	Check if the authenticated user is an owner or a writer and has permissions to modify this object.
`user_is_owner`([auth])	Check if the authenticated user is an owner, and can perform actions such as changing ACLs or deleting this object.

Attributes:

`ATTRIBUTES`
`created`	The point in time this object was created.
`default_display_bands`	Which bands to use for RGBA display.
`description`	A description with further details on this product.
`end_datetime`	The end of the mission for this product.
`extra_properties`	A dictionary of up to 50 key/value pairs.
`id`	A unique identifier for this object.
`image_index_name`	The name of the image index for this product.
`is_core`	Whether this is a Descartes Labs catalog core product.
`is_modified`	Whether any attributes were changed (see `state`).
`modified`	The point in time this object was last modified.
`name`	The name of this product.
`owners`	User, group, or organization IDs that own this object.
`product_tier`	Product tier for this product.
`readers`	User, email, group, or organization IDs that can read this object.
`resolution_max`	Maximum resolution of the bands for this product.
`resolution_min`	Minimum resolution of the bands for this product.
`revisit_period_minutes_max`	Maximum length of the time interval between observations.
`revisit_period_minutes_min`	Minimum length of the time interval between observations.
`start_datetime`	The beginning of the mission for this product.
`state`	The state of this catalog object.
`tags`	A list of up to 32 tags, each up to 1000 bytes long.
`writers`	User, group, or organization IDs that can edit this object.

bands(request_params=None, headers=None)[source]

A search query for all bands for this product, sorted by default band sort_order.

Returns:: A Search instance configured to find all bands for this product.
Return type:: Search
Raises:: DeletedObjectError – If this product was deleted.

classmethod delete(id, client=None)

Delete the catalog object with the given id.

Parameters:

id (str) – The id of the object to be deleted.
client (CatalogClient, optional) – A CatalogClient instance to use for requests to the Descartes Labs catalog. The get_default_client() will be used if not set.

Returns:

True if this object was successfully deleted. False if the object was not found.

Return type:

bool

Raises:

ConflictError – If the object has related objects (bands, images) that exist.
ClientError or ServerError – Spurious exception that can occur during a network request.

Example

>>> Image.delete('my-image-id') 

There is also an instance delete method that can be used to delete an object. It accepts no parameters and does not return anything. Once deleted, you cannot use the catalog object and should release any references.

delete_related_objects()[source]

Delete all related bands and images for this product.

Starts an asynchronous operation that deletes all bands and images associated with this product. If the product has a large number of associated images, this operation could take several minutes, or even hours.

Returns:

Returns DeletionTaskStatus if deletion task was successfully started and None if there were no related objects to delete.

Return type:

DeletionTaskStatus

Raises:

ConflictError – If a deletion process is already in progress.
DeletedObjectError – If this product was deleted.
ClientError or ServerError – Spurious exception that can occur during a network request.

classmethod exists(id, client=None, headers=None)

Checks if an object exists in the Descartes Labs catalog.

Parameters:

id (str) – The id of the object.
client (CatalogClient, optional) – A CatalogClient instance to use for requests to the Descartes Labs catalog. The get_default_client() will be used if not set.

Returns:

Returns True if the given id represents an existing object in the Descartes Labs catalog and False if not.

Return type:

bool

Raises:

ClientError or ServerError – Spurious exception that can occur during a network request.

classmethod get(id, client=None, request_params=None, headers=None)

Get an existing object from the Descartes Labs catalog.

If the Descartes Labs catalog object is found, it will be returned in the SAVED state. Subsequent changes will put the instance in the MODIFIED state, and you can use save() to commit those changes and update the Descartes Labs catalog object. Also see the example for save().

For bands, if you request a specific band type, for example SpectralBand.get(), you will only receive that type. Use Band.get() to receive any type.

Parameters:

id (str) – The id of the object you are requesting.
client (CatalogClient, optional) – A CatalogClient instance to use for requests to the Descartes Labs catalog. The get_default_client() will be used if not set.

Returns:

The object you requested, or None if an object with the given id does not exist in the Descartes Labs catalog.

Return type:

CatalogObject or None

Raises:

ClientError or ServerError – Spurious exception that can occur during a network request.

get_band(name, client=None, request_params=None, headers=None)[source]

Retrieve the request band associated with this product by name.

Parameters:

name (str) – The name of the band to retrieve.
client (CatalogClient, optional) – A CatalogClient instance to use for requests to the Descartes Labs catalog. The get_default_client() will be used if not set.

Returns:

A derived class of Band that represents the requested band object if found, None if not found.

Return type:

Band or None

get_delete_status()[source]

Fetches the status of a deletion task.

Fetches the status of a deletion task started using delete_related_objects().

Return type:

DeletionTaskStatus

Raises:

DeletedObjectError – If this product was deleted.
ClientError or ServerError – Spurious exception that can occur during a network request.

get_image(name, client=None, request_params=None, headers=None)[source]

Retrieve the request image associated with this product by name.

Parameters:

name (str) – The name of the image to retrieve.
client (CatalogClient, optional) – A CatalogClient instance to use for requests to the Descartes Labs catalog. The get_default_client() will be used if not set.

Returns:

The requested image if found, or None if not found.

Return type:

Image or None

classmethod get_many(ids, ignore_missing=False, client=None, request_params=None, headers=None)

Get existing objects from the Descartes Labs catalog.

All returned Descartes Labs catalog objects will be in the SAVED state. Also see get().

For bands, if you request a specific band type, for example SpectralBand.get_many(), you will only receive that type. Use Band.get_many() to receive any type.

Parameters:

ids (list(str)) – A list of identifiers for the objects you are requesting.
ignore_missing (bool, optional) – Whether to raise a NotFoundError exception if any of the requested objects are not found in the Descartes Labs catalog. False by default which raises the exception.
client (CatalogClient, optional) – A CatalogClient instance to use for requests to the Descartes Labs catalog. The get_default_client() will be used if not set.

Returns:

List of the objects you requested in the same order.

Return type:

list(CatalogObject)

Raises:

NotFoundError – If any of the requested objects do not exist in the Descartes Labs catalog and ignore_missing is False.
ClientError or ServerError – Spurious exception that can occur during a network request.

classmethod get_or_create(id, client=None, request_params=None, headers=None, **kwargs)

Get an existing object from the Descartes Labs catalog or create a new object.

If the Descartes Labs catalog object is found, and the remainder of the arguments do not differ from the values in the retrieved instance, it will be returned in the SAVED state.

If the Descartes Labs catalog object is found, and the remainder of the arguments update one or more values in the instance, it will be returned in the MODIFIED state.

If the Descartes Labs catalog object is not found, it will be created and the state will be UNSAVED. Also see the example for save().

Parameters:

id (str) – The id of the object you are requesting.
client (CatalogClient, optional) – A CatalogClient instance to use for requests to the Descartes Labs catalog. The get_default_client() will be used if not set.
kwargs (dict, optional) – With the exception of readonly attributes (created, modified), any attribute of a catalog object can be set as a keyword argument (Also see ATTRIBUTES).

Returns:

The requested catalog object that was retrieved or created.

Return type:

CatalogObject

image_uploads()[source]

A search query for all uploads in this product created by this user.

Returns:: A Search instance configured to find all uploads in this product.
Return type:: Search
Raises:: DeletedObjectError – If this product was deleted.

images(request_params=None, headers=None)[source]

A search query for all images in this product.

Returns:: A Search instance configured to find all images in this product.
Return type:: Search
Raises:: DeletedObjectError – If this product was deleted.

named_id(name)[source]

Return the ~descarteslabs.catalog.NamedCatalogObject.id` for the given named catalog object.

Parameters:: name (str) – The name of the catalog object within this product, see name.
Returns:: The named catalog object id within this product.
Return type:: str

classmethod namespace_id(id_, client=None)[source]

Generate a fully namespaced id.

Parameters:

id (str) – The unprefixed part of the id that you want prefixed.
client (CatalogClient, optional) – A CatalogClient instance to use for requests to the Descartes Labs catalog. The get_default_client() will be used if not set.

Returns:

The fully namespaced id.

Return type:

str

Example

>>> product_id = Product.namespace_id("my-product")

reload(request_params=None, headers=None)

Reload all attributes from the Descartes Labs catalog.

Refresh the state of this catalog object from the object in the Descartes Labs catalog. This may be necessary if there are concurrent updates and the object in the Descartes Labs catalog was updated from another client. The instance state must be in the SAVED state.

If you want to revert a modified object to its original one, you should use get() on the object class with the object’s id.

Raises:

ValueError – If the catalog object is not in the SAVED state.
DeletedObjectError – If this catalog object was deleted.
ClientError or ServerError – Spurious exception that can occur during a network request.

save(request_params=None, headers=None)

Saves this object to the Descartes Labs catalog.

If this instance was created using the constructor, it will be in the UNSAVED state and is considered a new Descartes Labs catalog object that must be created. If the catalog object already exists in this case, this method will raise a BadRequestError.

If this instance was retrieved using get(), get_or_create() or any other way (for example as part of a search()), and any of its values were changed, it will be in the MODIFIED state and the existing catalog object will be updated.

If this instance was retrieved using get(), get_or_create() or any other way (for example as part of a search()), and none of its values were changed, it will be in the SAVED state, and if no request_params parameter is given, nothing will happen.

Parameters:

request_params (dict, optional) – A dictionary of attributes that should be sent to the catalog along with attributes already set on this object. Empty by default. If not empty, and the object is in the SAVED state, it is updated in the Descartes Labs catalog even though no attributes were modified.
headers (dict, optional) – A dictionary of header keys and values to be sent with the request.

Raises:

ConflictError – If you’re trying to create a new object and the object with given id already exists in the Descartes Labs catalog.
BadRequestError – If any of the attribute values are invalid.
DeletedObjectError – If this catalog object was deleted.
ClientError or ServerError – Spurious exception that can occur during a network request.

classmethod search(client=None, request_params=None, headers=None)

A search query for all objects of the type this class represents.

Parameters:: client (CatalogClient, optional) – A CatalogClient instance to use for requests to the Descartes Labs catalog. The get_default_client() will be used if not set.
Returns:: An instance of the Search class.
Return type:: Search

Example

>>> search = Product.search().limit(10) 
>>> for result in search: 
        print(result.name) 

serialize(modified_only=False, jsonapi_format=False)

Serialize the catalog object into json.

Parameters:

modified_only (bool, optional) – Whether only modified attributes should be serialized. False by default. If set to True, only those attributes that were modified since the last time the catalog object was retrieved or saved will be included.
jsonapi_format (bool, optional) – Whether to use the data element for catalog objects. False by default. When set to False, the serialized data will directly contain the attributes of the catalog object. If set to True, the serialized data will follow the exact JSONAPI with a top-level data element which contains id, type, and attributes. The latter will contain the attributes of the catalog object.

update(ignore_errors=False, **kwargs)

Update multiple attributes at once using the given keyword arguments.

Parameters:

ignore_errors (bool, optional) – False by default. When set to True, it will suppress AttributeValidationError and AttributeError. Any given attribute that causes one of these two exceptions will be ignored, all other attributes will be set to the given values.

Raises:

AttributeValidationError – If one or more of the attributes being updated are immutable.
AttributeError – If one or more of the attributes are not part of this catalog object.
DeletedObjectError – If this catalog object was deleted.

user_can_read(auth=None)

Check if the authenticated user is an owner, a writer, or a reader and has permissions to read this object.

Note it is kind of silly to call this method unless a non-default auth object is provided, because the default authorized user must have read permission in order to even retrieve this object.

Parameters:: auth (Auth, optional) – The auth object to use for the check. If not provided, the default auth object will be used.
Returns:: True if the user can read the object, False otherwise.
Return type:: bool

user_can_write(auth=None)

Check if the authenticated user is an owner or a writer and has permissions to modify this object.

Parameters:: auth (Auth, optional) – The auth object to use for the check. If not provided, the default auth object will be used.
Returns:: True if the user can modify the object, False otherwise.
Return type:: bool

user_is_owner(auth=None)

Check if the authenticated user is an owner, and can perform actions such as changing ACLs or deleting this object.

Parameters:: auth (Auth, optional) – The auth object to use for the check. If not provided, the default auth object will be used.
Returns:: True if the user is an owner of the object, False otherwise.
Return type:: bool

ATTRIBUTES = ('name', 'description', 'is_core', 'revisit_period_minutes_min', 'revisit_period_minutes_max', 'start_datetime', 'end_datetime', 'resolution_min', 'resolution_max', 'default_display_bands', 'image_index_name', 'product_tier', 'owners', 'readers', 'writers', 'extra_properties', 'tags', 'id', 'created', 'modified')

created

The point in time this object was created.

Filterable, sortable.

Type:: datetime, readonly

default_display_bands

Which bands to use for RGBA display.

This field defines the default bands that are used for display purposes. There are four supported formats: ["greyscale-or-class"], ["greyscale-or-class", "alpha"], ["red", "green", "blue"], and ["red", "green", "blue", "alpha"].

Type:: list(str) or iterable

description

A description with further details on this product.

The description can be up to 80,000 characters and is used by Search.find_text().

Searchable

Type:: str, optional

end_datetime

The end of the mission for this product.

Filterable, sortable.

Type:: str or datetime, optional

extra_properties

A dictionary of up to 50 key/value pairs.

The keys of this dictionary must be strings, and the values of this dictionary can be strings or numbers. This allows for more structured custom metadata to be associated with objects.

Type:: dict, optional

id

A unique identifier for this object.

Note that if you pass a string that does not begin with your Descartes Labs user organization ID, it will be prepended to your id with a : as separator. If you are not part of an organization, your user ID is used. Once set, it cannot be changed.

Type:: str, immutable

image_index_name

The name of the image index for this product.

This is an internal field, accessible to privileged users only.

Filterable, sortable.

Type:: str

is_core

Whether this is a Descartes Labs catalog core product.

A core product is a product that is fully supported by Descartes Labs. By default this value is False and you must have a special permission (internal:core:create) to set it to True.

Filterable, sortable.

Type:: bool, optional

property is_modified

Whether any attributes were changed (see state).

True if any of the attribute values changed since the last time this catalog object was retrieved or saved. False otherwise.

Note that assigning an identical value does not affect the state.

Type:: bool

modified

The point in time this object was last modified.

Filterable, sortable.

Type:: datetime, readonly

name

The name of this product.

This should not be confused with a band name or image name. Unlike the band name and image name, this name is not unique and purely for display purposes and is used by Search.find_text(). It can contain a string with up to 2000 arbitrary characters.

Searchable, sortable.

Type:: str

owners

User, group, or organization IDs that own this object.

Defaults to [user:current_user, org:current_org]. The owner can edit, delete, and change access to this object. See this note.

Filterable.

Type:: list(str), optional

product_tier

Product tier for this product.

This field can be set by privileged users only.

Filterable, sortable.

Type:: str

readers

User, email, group, or organization IDs that can read this object.

Will be empty by default. This attribute is only available in full to the owners of the object. See this note.

Type:: list(str), optional

resolution_max

Maximum resolution of the bands for this product.

If applying a filter with a plain unitless number the value is assumed to be in meters.

Filterable, sortable.

Type:: Resolution, readonly

resolution_min

Minimum resolution of the bands for this product.

If applying a filter with a plain unitless number the value is assumed to be in meters.

Filterable, sortable.

Type:: Resolution, readonly

revisit_period_minutes_max

Maximum length of the time interval between observations.

The maximum length of the time interval between observations of any given area in minutes.

Filterable, sortable.

Type:: float, optional

revisit_period_minutes_min

Minimum length of the time interval between observations.

The minimum length of the time interval between observations of any given area in minutes.

Filterable, sortable.

Type:: float, optional

start_datetime

The beginning of the mission for this product.

Filterable, sortable.

Type:: str or datetime, optional

property state

The state of this catalog object.

Type:: DocumentState

tags

A list of up to 32 tags, each up to 1000 bytes long.

The tags may support the classification and custom filtering of objects.

Filterable.

Type:: list, optional

writers

User, group, or organization IDs that can edit this object.

Writers will also have read permission. Writers will be empty by default. See note below. This attribute is only available in full to the owners of the object. See this note.

Type:: list(str), optional

class ProductCollection(iterable=None, item_type=None)[source]

Methods:

`append`(x)	Append x to the end of this `Collection`.
`extend`(x)	Extend this `Collection` by appending elements from the iterable.
`filter`(predicate)	Returns a `Collection` filtered by predicate.
`groupby`(*predicates)	Groups items by predicates.
`map`(f)	Returns a `Collection` of `f` applied to each item.
`sort`(field[, ascending])	Returns a `Collection`, sorted by the given field and direction.
`sorted`(predicates, *reverse)	Returns a `Collection`, sorted by predicates in ascending order.

Attributes:

each

Any operations chained onto each (attribute access, item access, and calls) are applied to each item in the Collection.

append(x)

Append x to the end of this Collection.

The type of the item must match the type of the collection.

Parameters:: x (Any) – Add an item to the collection

extend(x)

Extend this Collection by appending elements from the iterable.

The type of the items in the list must all match the type of the collection.

Parameters:: x (List[Any]) – Extend a collection with the items from the list.

filter(predicate)

Returns a Collection filtered by predicate.

Predicate can either be a callable or an Expression from Properties.

If the predicate is a callable, filter() will return all items for which predicate(item) is True.

If the predicate is an Expression, filter() will return all items for which predicate.evaluate(item) is True.

Parameters:: predicate (callable or Expression) – Either a callable or a Properties Expression which is called or evaluated for each item in the list.
Returns:: A new collection with only those items for which the predicate returned or evaluated to True.
Return type:: Collection

groupby(*predicates)

Groups items by predicates.

Groups items by predicates and yields tuple of (group, items) for each group, where items is a Collection.

Each predicate can be a key function, or a string of dot-chained attributes to use as sort keys.

Parameters:: predicates (callable or str) – Any positional arguments are predicates. If the predicate is a string, it denotes an attribute for each element, potentially with levels separated by a dot. If the predicate is a callable, it must return the value to sort by for each given element.
Yields:: Tuple[str, Collection] – A tuple of (group, Collection) for each group.

Examples

>>> import collections
>>> FooBar = collections.namedtuple("FooBar", ["foo", "bar"])
>>> c = Collection([FooBar("a", True), FooBar("b", False), FooBar("a", False)])

>>> for group, items in c.groupby("foo"):
...     print(group)
...     print(items)
a
Collection([FooBar(foo='a', bar=True), FooBar(foo='a', bar=False)])
b
Collection([FooBar(foo='b', bar=False)])
>>> for group, items in c.groupby("bar"):
...     print(group)
...     print(items)
False
Collection([FooBar(foo='b', bar=False), FooBar(foo='a', bar=False)])
True
Collection([FooBar(foo='a', bar=True)])

map(f)

Returns a Collection of f applied to each item.

Parameters:: f (callable) – Apply function f to each element of the collection and return the result as a collection.
Returns:: A collection with the results of the function f applied to each element of the original collection.
Return type:: Collection

sort(field, ascending=True)

Returns a Collection, sorted by the given field and direction.

Parameters:

field (str) – The name of the field to sort by
ascending (bool) – Sorts results in ascending order if True (the default), and in descending order if False.

Returns:

The sorted collection.

Return type:

Collection

Example

>>> from descarteslabs.catalog import Product
>>> collection = Product.search().collect() 
>>> sorted_collection = collection.sort("created", ascending=False) 
>>> sorted_collection 

sorted(*predicates, **reverse)

Returns a Collection, sorted by predicates in ascending order.

Each predicate can be a key function, or a string of dot-chained attributes to use as sort keys. The reverse flag returns results in descending order.

Parameters:

predicates (callable or str) – Any positional arguments are predicates. If the predicate is a string, it denotes an attribute for each element, potentially with levels separated by a dot. If the predicate is a callable, it must return the value to sort by for each given element.
reverse (bool) – The sort is ascending by default, by setting reverse to True, the sort will be descending.

Returns:

The sorted collection.

Return type:

Collection

Examples

>>> import collections
>>> FooBar = collections.namedtuple("FooBar", ["foo", "bar"])
>>> X = collections.namedtuple("X", "x")
>>> c = Collection([FooBar(1, X("one")), FooBar(2, X("two")), FooBar(3, X("three"))])

>>> c.sorted("foo")
Collection([FooBar(foo=1, bar=X(x='one')), FooBar(foo=2, bar=X(x='two')), FooBar(foo=3, bar=X(x='three'))])
>>> c.sorted("bar.x")
Collection([FooBar(foo=1, bar=X(x='one')), FooBar(foo=3, bar=X(x='three')), FooBar(foo=2, bar=X(x='two'))])

property each

Any operations chained onto each (attribute access, item access, and calls) are applied to each item in the Collection.

Yields:: Any – The result of an item with all operations following each applied to it.

Notes

Add combine() at the end of the operations chain to combine the results into a list by default, or any container type passed into combine()
Use pipe(f, *args, **kwargs) to yield f(x, *args, **kwargs) for each item x yielded by the preceeding operations chain

Examples

>>> c = Collection(["one", "two", "three", "four"])
>>> for x in c.each.capitalize():
...     print(x)
One
Two
Three
Four
>>> c.each.capitalize()[:2]
'On'
'Tw'
'Th'
'Fo'
>>> c.each.capitalize().pipe(len)
3
3
5
4
>>> list(c.each.capitalize().pipe(len).combine(set))
[3, 4, 5]

class DeletionTaskStatus(*args, **kwargs)[source]

The asynchronous deletion task’s status

id

The id of the object for which this task is running.

Type:: str

status

The state of the task as explained in TaskState.

Type:: TaskState

start_datetime

The date and time at which the task started running.

Type:: datetime

duration_in_seconds

The duration of the task.

Type:: float

objects_deleted

The number of objects (a combination of bands or images) that were deleted.

Type:: int

errors

In case the status is FAILED this will contain a list of errors that were encountered. In all other states this will not be set.

Type:: list

Methods:

`reload`()	Update the task information.
`wait_for_completion`([timeout])	Wait for the task to complete.

reload()

Update the task information.

Raises:: ClientError or ServerError – Spurious exception that can occur during a network request.

wait_for_completion(timeout=None)

Wait for the task to complete.

Parameters:: timeout (int, optional) – If specified, will wait up to specified number of seconds and will raise a concurrent.futures.TimeoutError if the task has not completed.
Raises:: concurrent.futures.TimeoutError – If the specified timeout elapses and the task has not completed