Metadata-Version: 2.1
Name: ibm-watson
Version: 5.2.0
Summary: Client library to use the IBM Watson Services
Home-page: https://github.com/watson-developer-cloud/python-sdk
Author: IBM Watson
Author-email: watdevex@us.ibm.com
License: Apache 2.0
Keywords: language,vision,question and answer tone_analyzer,natural language classifier,text to speech,language translation,language identification,concept expansion,machine translation,personality insights,message resonance,watson developer cloud,wdc,watson,ibm,dialog,user modeling,tone analyzer,speech to text,visual recognition
Platform: UNKNOWN
Classifier: Programming Language :: Python
Classifier: Programming Language :: Python :: 2
Classifier: Programming Language :: Python :: 3
Classifier: Development Status :: 4 - Beta
Classifier: Intended Audience :: Developers
Classifier: License :: OSI Approved :: Apache Software License
Classifier: Operating System :: OS Independent
Classifier: Topic :: Software Development :: Libraries :: Python Modules
Classifier: Topic :: Software Development :: Libraries :: Application Frameworks
License-File: LICENSE

Watson Developer Cloud Python SDK
=================================

|Build and Test| |Deploy and Publish| |Slack| |Latest Stable Version|
|CLA assistant|

Deprecated builds
-----------------

|Build Status|

Python client library to quickly get started with the various `Watson
APIs <http://www.ibm.com/watson/developercloud/>`__ services.

 Table of Contents

-  `Before you begin <#before-you-begin>`__
-  `Installation <#installation>`__
-  `Examples <#examples>`__
-  `Discovery v2 only on CP4D <#discovery-v2-only-on-cp4d>`__
-  `Running in IBM Cloud <#running-in-ibm-cloud>`__
-  `Authentication <#authentication>`__

   -  `Getting credentials <#getting-credentials>`__
   -  `IAM <#iam>`__
   -  `Username and password <#username-and-password>`__
   -  `No Authentication <#no-authentication>`__

-  `Python version <#python-version>`__
-  `Changes for v1.0 <#changes-for-v10>`__
-  `Changes for v2.0 <#changes-for-v20>`__
-  `Changes for v3.0 <#changes-for-v30>`__
-  `Changes for v4.0 <#changes-for-v40>`__
-  `Migration <#migration>`__
-  `Configuring the http
   client <#configuring-the-http-client-supported-from-v110>`__
-  `Disable SSL certificate
   verification <#disable-ssl-certificate-verification>`__
-  `Setting the service url <#setting-the-service-url>`__
-  `Sending request headers <#sending-request-headers>`__
-  `Parsing HTTP response
   information <#parsing-http-response-information>`__
-  `Getting the transaction ID <#getting-the-transaction-id>`__
-  `Using Websockets <#using-websockets>`__
-  `Cloud Pak for Data(CP4D) <#cloud-pak-for-data>`__
-  `Logging <#logging>`__
-  `Dependencies <#dependencies>`__
-  `License <#license>`__
-  `Contributing <#contributing>`__
-  `Featured Projects <#featured-projects>`__

Announcements
-------------

Updating endpoint URLs from watsonplatform.net
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Watson API endpoint URLs at watsonplatform.net are changing and will not
work after 26 May 2021. Update your calls to use the newer endpoint
URLs. For more information, see
https://cloud.ibm.com/docs/watson?topic=watson-endpoint-change.

Personality Insights deprecation
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

IBM Watson™ Personality Insights is discontinued. For a period of one
year from 1 December 2020, you will still be able to use Watson
Personality Insights. However, as of 1 December 2021, the offering will
no longer be available.

As an alternative, we encourage you to consider migrating to IBM Watson™
`Natural Language
Understanding <https://cloud.ibm.com/docs/natural-language-understanding>`__,
a service on IBM Cloud® that uses deep learning to extract data and
insights from text such as keywords, categories, sentiment, emotion, and
syntax to provide insights for your business or industry. For more
information, see About Natural Language Understanding.

Visual Recognition deprecation
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

IBM Watson™ Visual Recognition is discontinued. Existing instances are
supported until 1 December 2021, but as of 7 January 2021, you can't
create instances. Any instance that is provisioned on 1 December 2021
will be deleted.

Compare and Comply deprecation
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

IBM Watson™ Compare and Comply is discontinued. Existing instances are
supported until 30 November 2021, but as of 1 December 2020, you can't
create instances. Any instance that exists on 30 November 2021 will be
deleted. Consider migrating to Watson Discovery Premium on IBM Cloud for
your Compare and Comply use cases. To start the migration process, visit
https://ibm.biz/contact-wdc-premium.

Before you begin
----------------

-  You need an `IBM
   Cloud <https://cloud.ibm.com/registration?target=/developer/watson&cm_sp=WatsonPlatform-WatsonServices-_-OnPageNavLink-IBMWatson_SDKs-_-Python>`__
   account. We now only support ``python 3.5`` and above

Installation
------------

To install, use ``pip`` or ``easy_install``:

.. code:: bash

    pip install --upgrade ibm-watson

or

.. code:: bash

    easy_install --upgrade ibm-watson

Note the following: a) Versions prior to 3.0.0 can be installed using:

.. code:: bash

    pip install --upgrade watson-developer-cloud

b) If you run into permission issues try:

.. code:: bash

    sudo -H pip install --ignore-installed six ibm-watson

For more details see
`#225 <https://github.com/watson-developer-cloud/python-sdk/issues/225>`__

c) In case you run into problems installing the SDK in DSX, try

   ::

       !pip install --upgrade pip

   Restarting the kernel

For more details see
`#405 <https://github.com/watson-developer-cloud/python-sdk/issues/405>`__

Examples
--------

The
`examples <https://github.com/watson-developer-cloud/python-sdk/tree/master/examples>`__
folder has basic and advanced examples. The examples within each service
assume that you already have `service
credentials <#getting-credentials>`__.

Discovery v2 only on CP4D
-------------------------

Discovery v2 is only available on Cloud Pak for Data.

Running in IBM Cloud
--------------------

If you run your app in IBM Cloud, the SDK gets credentials from the
```VCAP_SERVICES`` <https://cloud.ibm.com/docs/watson?topic=watson-vcapServices>`__
environment variable.

Authentication
--------------

Watson services are migrating to token-based Identity and Access
Management (IAM) authentication.

-  With some service instances, you authenticate to the API by using
   **`IAM <#iam>`__**.
-  In other instances, you authenticate by providing the **`username and
   password <#username-and-password>`__** for the service instance.

Getting credentials
~~~~~~~~~~~~~~~~~~~

To find out which authentication to use, view the service credentials.
You find the service credentials for authentication the same way for all
Watson services:

1. Go to the IBM Cloud `Dashboard <https://cloud.ibm.com/>`__ page.
2. Either click an existing Watson service instance in your `resource
   list <https://cloud.ibm.com/resources>`__ or click `**Create resource
   > AI** <https://cloud.ibm.com/catalog?category=ai>`__ and create a
   service instance.
3. Click on the **Manage** item in the left nav bar of your service
   instance.

On this page, you should be able to see your credentials for accessing
your service instance.

Supplying credentials
~~~~~~~~~~~~~~~~~~~~~

There are three ways to supply the credentials you found above to the
SDK for authentication.

Credential file
^^^^^^^^^^^^^^^

With a credential file, you just need to put the file in the right place
and the SDK will do the work of parsing and authenticating. You can get
this file by clicking the **Download** button for the credentials in the
**Manage** tab of your service instance.

The file downloaded will be called ``ibm-credentials.env``. This is the
name the SDK will search for and **must** be preserved unless you want
to configure the file path (more on that later). The SDK will look for
your ``ibm-credentials.env`` file in the following places (in order):

-  The top-level directory of the project you're using the SDK in
-  Your system's home directory

As long as you set that up correctly, you don't have to worry about
setting any authentication options in your code. So, for example, if you
created and downloaded the credential file for your Discovery instance,
you just need to do the following:

.. code:: python

    discovery = DiscoveryV1(version='2019-04-30')

And that's it!

If you're using more than one service at a time in your code and get two
different ``ibm-credentials.env`` files, just put the contents together
in one ``ibm-credentials.env`` file and the SDK will handle assigning
credentials to their appropriate services.

If you would like to configure the location/name of your credential
file, you can set an environment variable called
``IBM_CREDENTIALS_FILE``. **This will take precedence over the locations
specified above.** Here's how you can do that:

.. code:: bash

    export IBM_CREDENTIALS_FILE="<path>"

where ``<path>`` is something like
``/home/user/Downloads/<file_name>.env``.

Environment Variables
^^^^^^^^^^^^^^^^^^^^^

Simply set the environment variables using \_ syntax. For example, using
your favourite terminal, you can set environment variables for Assistant
service instance:

.. code:: bash

    export ASSISTANT_APIKEY="<your apikey>"
    export ASSISTANT_AUTH_TYPE="iam"

The credentials will be loaded from the environment automatically

.. code:: python

    assistant = AssistantV1(version='2018-08-01')

Manually
^^^^^^^^

If you'd prefer to set authentication values manually in your code, the
SDK supports that as well. The way you'll do this depends on what type
of credentials your service instance gives you.

IAM
~~~

IBM Cloud has migrated to token-based Identity and Access Management
(IAM) authentication. IAM authentication uses a service API key to get
an access token that is passed with the call. Access tokens are valid
for approximately one hour and must be regenerated.

You supply either an IAM service **API key** or a **bearer token**:

-  Use the API key to have the SDK manage the lifecycle of the access
   token. The SDK requests an access token, ensures that the access
   token is valid, and refreshes it if necessary.
-  Use the access token if you want to manage the lifecycle yourself.
   For details, see `Authenticating with IAM
   tokens <https://cloud.ibm.com/docs/watson?topic=watson-iam>`__.
-  Use a server-side to generate access tokens using your IAM API key
   for untrusted environments like client-side scripts. The generated
   access tokens will be valid for one hour and can be refreshed.

Supplying the API key
^^^^^^^^^^^^^^^^^^^^^

.. code:: python

    from ibm_watson import DiscoveryV1
    from ibm_cloud_sdk_core.authenticators import IAMAuthenticator

    # In the constructor, letting the SDK manage the token
    authenticator = IAMAuthenticator('apikey',
                                     url='<iam_url>') # optional - the default value is https://iam.cloud.ibm.com/identity/token
    discovery = DiscoveryV1(version='2019-04-30',
                            authenticator=authenticator)
    discovery.set_service_url('<url_as_per_region>')

Generating bearer tokens using API key
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

.. code:: python

    from ibm_watson import IAMTokenManager

    # In your API endpoint use this to generate new bearer tokens
    iam_token_manager = IAMTokenManager(apikey='<apikey>')
    token = iam_token_manager.get_token()

Supplying the bearer token
''''''''''''''''''''''''''

.. code:: python

    from ibm_watson import DiscoveryV1
    from ibm_cloud_sdk_core.authenticators import BearerTokenAuthenticator

    # in the constructor, assuming control of managing the token
    authenticator = BearerTokenAuthenticator('your bearer token')
    discovery = DiscoveryV1(version='2019-04-30',
                            authenticator=authenticator)
    discovery.set_service_url('<url_as_per_region>')

Username and password
~~~~~~~~~~~~~~~~~~~~~

.. code:: python

    from ibm_watson import DiscoveryV1
    from ibm_cloud_sdk_core.authenticators import BasicAuthenticator

    authenticator = BasicAuthenticator('username', 'password')
    discovery = DiscoveryV1(version='2019-04-30', authenticator=authenticator)
    discovery.set_service_url('<url_as_per_region>')

No Authentication
~~~~~~~~~~~~~~~~~

.. code:: python

    from ibm_watson import DiscoveryV1
    from ibm_cloud_sdk_core.authenticators import NoAuthAuthenticator

    authenticator = NoAuthAuthenticator()
    discovery = DiscoveryV1(version='2019-04-30', authenticator=authenticator)
    discovery.set_service_url('<url_as_per_region>')

Python version
--------------

Tested on Python 3.5, 3.6, and 3.7.

Questions
---------

If you have issues with the APIs or have a question about the Watson
services, see `Stack
Overflow <https://stackoverflow.com/questions/tagged/ibm-watson+python>`__.

Changes for v1.0
----------------

Version 1.0 focuses on the move to programmatically-generated code for
many of the services. See the
`changelog <https://github.com/watson-developer-cloud/python-sdk/wiki/Changelog>`__
for the details.

Changes for v2.0
----------------

``DetailedResponse`` which contains the result, headers and HTTP status
code is now the default response for all methods.

.. code:: python

    from ibm_watson import AssistantV1

    assistant = AssistantV1(
        username='xxx',
        password='yyy',
        url='<url_as_per_region>',
        version='2018-07-10')

    response = assistant.list_workspaces(headers={'Custom-Header': 'custom_value'})
    print(response.get_result())
    print(response.get_headers())
    print(response.get_status_code())

See the
`changelog <https://github.com/watson-developer-cloud/python-sdk/wiki/Changelog>`__
for the details.

Changes for v3.0
----------------

The SDK is generated using OpenAPI Specification(OAS3). Changes are
basic reordering of parameters in function calls.

The package is renamed to ibm\_watson. See the
`changelog <https://github.com/watson-developer-cloud/python-sdk/wiki/Changelog>`__
for the details.

Changes for v4.0
----------------

Authenticator variable indicates the type of authentication to be used.

.. code:: python

    from ibm_watson import AssistantV1
    from ibm_cloud_sdk_core.authenticators import IAMAuthenticator

    authenticator = IAMAuthenticator('your apikey')
    assistant = AssistantV1(
        version='2018-07-10',
        authenticator=authenticator)
    assistant.set_service_url('<url as per region>')

For more information, follow the
`MIGRATION-V4 <https://github.com/watson-developer-cloud/python-sdk/blob/master/MIGRATION-V4.md>`__

Migration
---------

To move from v3.x to v4.0, refer to the
`MIGRATION-V4 <https://github.com/watson-developer-cloud/python-sdk/blob/master/MIGRATION-V4.md>`__.

Configuring the http client (Supported from v1.1.0)
---------------------------------------------------

To set client configs like timeout use the ``set_http_config()``
function and pass it a dictionary of configs. For example for a
Assistant service instance

.. code:: python

    from ibm_watson import AssistantV1
    from ibm_cloud_sdk_core.authenticators import IAMAuthenticator

    authenticator = IAMAuthenticator('your apikey')
    assistant = AssistantV1(
        version='2018-07-10',
        authenticator=authenticator)
    assistant.set_service_url('https://gateway.watsonplatform.net/assistant/api')

    assistant.set_http_config({'timeout': 100})
    response = assistant.message(workspace_id=workspace_id, input={
        'text': 'What\'s the weather like?'}).get_result()
    print(json.dumps(response, indent=2))

Disable SSL certificate verification
------------------------------------

For ICP(IBM Cloud Private), you can disable the SSL certificate
verification by:

.. code:: python

    service.set_disable_ssl_verification(True)

Or can set it from extrernal sources. For example set in the environment
variable.

::

    export <service name>_DISABLE_SSL=True

Setting the service url
-----------------------

To set the base service to be used when contacting the service

.. code:: python

    service.set_service_url('my_new_service_url')

Or can set it from extrernal sources. For example set in the environment
variable.

::

    export <service name>_URL="<your url>"

Sending request headers
-----------------------

Custom headers can be passed in any request in the form of a ``dict``
as:

.. code:: python

    headers = {
        'Custom-Header': 'custom_value'
    }

For example, to send a header called ``Custom-Header`` to a call in
Watson Assistant, pass the headers parameter as:

.. code:: python

    from ibm_watson import AssistantV1
    from ibm_cloud_sdk_core.authenticators import IAMAuthenticator

    authenticator = IAMAuthenticator('your apikey')
    assistant = AssistantV1(
        version='2018-07-10',
        authenticator=authenticator)
    assistant.set_service_url('https://gateway.watsonplatform.net/assistant/api')

    response = assistant.list_workspaces(headers={'Custom-Header': 'custom_value'}).get_result()

Parsing HTTP response information
---------------------------------

If you would like access to some HTTP response information along with
the response model, you can set the ``set_detailed_response()`` to
``True``. Since Python SDK ``v2.0``, it is set to ``True``

.. code:: python

    from ibm_watson import AssistantV1
    from ibm_cloud_sdk_core.authenticators import IAMAuthenticator

    authenticator = IAMAuthenticator('your apikey')
    assistant = AssistantV1(
        version='2018-07-10',
        authenticator=authenticator)
    assistant.set_service_url('https://gateway.watsonplatform.net/assistant/api')

    assistant.set_detailed_response(True)
    response = assistant.list_workspaces(headers={'Custom-Header': 'custom_value'}).get_result()
    print(response)

This would give an output of ``DetailedResponse`` having the structure:

.. code:: python

    {
        'result': <response returned by service>,
        'headers': { <http response headers> },
        'status_code': <http status code>
    }

You can use the ``get_result()``, ``get_headers()`` and
get\_status\_code() to return the result, headers and status code
respectively.

Getting the transaction ID
--------------------------

Every SDK call returns a response with a transaction ID in the
``X-Global-Transaction-Id`` header. Together the service instance
region, this ID helps support teams troubleshoot issues from relevant
logs.

Suceess
~~~~~~~

.. code:: python

    from ibm_watson import AssistantV1

    service = AssistantV1(authenticator={my_authenticator})
    response_headers = service.my_service_call().get_headers()
    print(response_headers.get('X-Global-Transaction-Id'))

Failure
~~~~~~~

.. code:: python

    from ibm_watson import AssistantV1, ApiException

    try:
        service = AssistantV1(authenticator={my_authenticator})
        service.my_service_call()
    except ApiException as e:
        print(e.global_transaction_id)
        # OR
        print(e.http_response.headers.get('X-Global-Transaction-Id'))

However, the transaction ID isn't available when the API doesn't return
a response for some reason. In that case, you can set your own
transaction ID in the request. For example, replace
``<my-unique-transaction-id>`` in the following example with a unique
transaction ID.

.. code:: python

    from ibm_watson import AssistantV1

    service = AssistantV1(authenticator={my_authenticator})
    service.my_service_call(headers={'X-Global-Transaction-Id': '<my-unique-transaction-id>'})

Using Websockets
----------------

The Text to Speech service supports synthesizing text to spoken audio
using web sockets with the ``synthesize_using_websocket``. The Speech to
Text service supports recognizing speech to text using web sockets with
the ``recognize_using_websocket``. These methods need a custom callback
class to listen to events. Below is an example of
``synthesize_using_websocket``. Note: The service accepts one request
per connection.

.. code:: py

    from ibm_watson.websocket import SynthesizeCallback

    class MySynthesizeCallback(SynthesizeCallback):
        def __init__(self):
            SynthesizeCallback.__init__(self)

        def on_audio_stream(self, audio_stream):
            return audio_stream

        def on_data(self, data):
            return data

    my_callback = MySynthesizeCallback()
    service.synthesize_using_websocket('I like to pet dogs',
                                       my_callback,
                                       accept='audio/wav',
                                       voice='en-US_AllisonVoice'
                                      )

Cloud Pak for Data
------------------

If your service instance is of CP4D, below are two ways of initializing
the assistant service.

1) Supplying the username, password and authentication url
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

The SDK will manage the token for the user

.. code:: python

    from ibm_watson import AssistantV1
    from ibm_cloud_sdk_core.authenticators import CloudPakForDataAuthenticator

    authenticator = CloudPakForDataAuthenticator(
        '<your username>',
        '<your password>',
        '<authentication url>', # should be of the form https://{icp_cluster_host}{instance-id}/api
        disable_ssl_verification=True) # Disable ssl verification for authenticator

    assistant = AssistantV1(
        version='<version>',
        authenticator=authenticator)
    assistant.set_service_url('<service url>') # should be of the form https://{icp_cluster_host}/{deployment}/assistant/{instance-id}/api
    assistant.set_disable_ssl_verification(True) # MAKE SURE SSL VERIFICATION IS DISABLED

2) Supplying the access token
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

.. code:: python

    from ibm_watson import AssistantV1
    from ibm_cloud_sdk_core.authenticators import BearerTokenAuthenticator

    authenticator = BearerTokenAuthenticator('your managed access token')
    assistant = AssistantV1(version='<version>',
                            authenticator=authenticator)
    assistant.set_service_url('<service url>') # should be of the form https://{icp_cluster_host}/{deployment}/assistant/{instance-id}/api
    assistant.set_disable_ssl_verification(True) # MAKE SURE SSL VERIFICATION IS DISABLED

Logging
-------

Enable logging
~~~~~~~~~~~~~~

.. code:: python

    import logging
    logging.basicConfig(level=logging.DEBUG)

This would show output of the form:

::

    DEBUG:urllib3.connectionpool:Starting new HTTPS connection (1): iam.cloud.ibm.com:443
    DEBUG:urllib3.connectionpool:https://iam.cloud.ibm.com:443 "POST /identity/token HTTP/1.1" 200 1809
    DEBUG:urllib3.connectionpool:Starting new HTTPS connection (1): gateway.watsonplatform.net:443
    DEBUG:urllib3.connectionpool:https://gateway.watsonplatform.net:443 "POST /assistant/api/v1/workspaces?version=2018-07-10 HTTP/1.1" 201 None
    DEBUG:urllib3.connectionpool:Starting new HTTPS connection (1): gateway.watsonplatform.net:443
    DEBUG:urllib3.connectionpool:https://gateway.watsonplatform.net:443 "GET /assistant/api/v1/workspaces/883a2a44-eb5f-4b1a-96b0-32a90b475ea8?version=2018-07-10&export=true HTTP/1.1" 200 None
    DEBUG:urllib3.connectionpool:Starting new HTTPS connection (1): gateway.watsonplatform.net:443
    DEBUG:urllib3.connectionpool:https://gateway.watsonplatform.net:443 "DELETE /assistant/api/v1/workspaces/883a2a44-eb5f-4b1a-96b0-32a90b475ea8?version=2018-07-10 HTTP/1.1" 200 28

Low level request and response dump
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

To get low level information of the requests/ responses:

.. code:: python

    from http.client import HTTPConnection
    HTTPConnection.debuglevel = 1

Dependencies
------------

-  `requests <http://docs.python-requests.org/en/latest/>`__
-  ``python_dateutil`` >= 2.5.3
-  `responses <https://github.com/getsentry/responses>`__ for testing
-  Following for web sockets support in speech to text
-  ``websocket-client`` 0.48.0
-  ``ibm_cloud_sdk_core`` == 1.0.0

Contributing
------------

See
`CONTRIBUTING.md <https://github.com/watson-developer-cloud/python-sdk/blob/master/CONTRIBUTING.md>`__.

Featured Projects
-----------------

Here are some projects that have been using the SDK:

-  `NLC ICD-10
   Classifier <https://github.com/IBM/nlc-icd10-classifier>`__
-  `Cognitive Moderator
   Service <https://github.com/IBM/cognitive-moderator-service>`__

We'd love to highlight cool open-source projects that use this SDK! If
you'd like to get your project added to the list, feel free to make an
issue linking us to it.

License
-------

This library is licensed under the `Apache 2.0
license <http://www.apache.org/licenses/LICENSE-2.0>`__.

.. |Build and Test| image:: https://github.com/watson-developer-cloud/python-sdk/workflows/Build%20and%20Test/badge.svg?branch=master
   :target: https://github.com/watson-developer-cloud/python-sdk/actions?query=workflow%3A%22Build+and+Test%22
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   :target: https://github.com/watson-developer-cloud/python-sdk/actions?query=workflow%3A%22Deploy+and+Publish%22
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.. |Latest Stable Version| image:: https://img.shields.io/pypi/v/ibm-watson.svg
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   :target: https://cla-assistant.io/watson-developer-cloud/python-sdk
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