SendGrid-Python ===============
    This library allows you to quickly and easily send emails through
    SendGrid using Python.

    .. image:: https://travis-ci.org/sendgrid/sendgrid-python.svg?branch=master
        :target: https://travis-ci.org/sendgrid/sendgrid-python

    Warning
    -------

    If you upgrade to version ``1.2.x``, the ``add_to`` method behaves differently. In the past this method defaulted to using the ``SMTPAPI`` header. Now you must explicitly call the ``smtpapi.add_to`` method. More on the ``SMTPAPI`` section.

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

    For users of our `Web API v3 endpoints`_, we have begun integrating v3 endpoints into this library. As part of this process we have implemented a test automation tool, TOX_. We are also updating and enhancing the core library code.

    In no particular order, we have implemented a `few of the v3`_ endpoints already and would appreciate your feedback.

    Thank you for your continued support! 

    Install
    -------

    .. code:: python

        pip install sendgrid
        # or
        easy_install sendgrid

    Example
    -------

    .. code:: python

        import sendgrid

        sg = sendgrid.SendGridClient('YOUR_SENDGRID_USERNAME', 'YOUR_SENDGRID_PASSWORD')

        message = sendgrid.Mail()
        message.add_to('John Doe <john@email.com>')
        message.set_subject('Example')
        message.set_html('Body')
        message.set_text('Body')
        message.set_from('Doe John <doe@email.com>')
        status, msg = sg.send(message)

        #or

        message = sendgrid.Mail(to='john@email.com', subject='Example', html='Body', text='Body', from_email='doe@email.com')
        status, msg = sg.send(message)

    Error handling
    --------------

    By default, ``.send`` method returns a tuple ``(http_status_code, message)``,
    however you can pass ``raise_errors=True`` to ``SendGridClient`` constructor,
    then ``.send`` method will raise ``SendGridClientError`` for 4xx errors,
    and ``SendGridServerError`` for 5xx errors.

    .. code:: python

        from sendgrid import SendGridError, SendGridClientError, SendGridServerError

        sg = sendgrid.SendGridClient(username, password, raise_errors=True)

        try:
            sg.send(message)
        except SendGridClientError:
            ...
        except SendGridServerError:
            ...

    This behavior is going to be default from version 2.0.0. You are
    encouraged to set ``raise_errors`` to ``True`` for forwards compatibility.

    ``SendGridError`` is a base-class for all SendGrid-related exceptions.

    Usage
    ~~~~~

    To begin using this library create a new instance of `SendGridClient` with your SendGrid credentials or a SendGrid API Key. API Key is the preferred method. API Keys are in beta. To configure API keys, visit https://app.sendgrid.com/settings/api_keys.

    .. code:: python

        sg = sendgrid.SendGridClient('sendgrid_username', 'sendgrid_password')
        # or
        sg = sendgrid.SendGridClient('sendgrid_apikey')

    Methods
    ~~~~~~~

    There are multiple ways to add recipients:

    add_to
    ^^^^^^

    .. code:: python

        message = sendgrid.Mail()
        message.add_to('example@email.com')
        # or
        message.add_to('Example Dude <example@email.com>')
        # or
        message.add_to(['Example Dude <example@email.com>', 'john@email.com'])

    add_to_name
    ^^^^^^^^^^^

    .. code:: python

        message = sendgrid.Mail()
        message.add_to('example@email.com')
        message.add_to_name('Example Dude')

    add_cc
    ^^^^^^

    .. code:: python

        message = sendgrid.Mail()
        message.add_cc('example@email.com')
        message.add_cc(['example@email.com', 'john@email.com'])

    add_bcc
    ^^^^^^^

    .. code:: python

        message = sendgrid.Mail()
        message.add_bcc('example@email.com')
        # or
        message.add_bcc(['Example Dude <example@email.com>', 'john@email.com'])

    set_from
    ^^^^^^^^

    .. code:: python

        message = sendgrid.Mail()
        message.set_from('example@email.com')

    set_from_name
    ^^^^^^^^^^^^^

    .. code:: python

        message = sendgrid.Mail()
        message.set_from('example@email.com')
        message.set_from_name('Example Dude')

    set_replyto
    ^^^^^^^^^^^

    .. code:: python

        message.sendgrid.Mail()
        message.set_replyto('example@email.com')

    set_subject
    ^^^^^^^^^^^

    .. code:: python

        message = sendgrid.Mail()
        message.set_subject('Example')

    set_text
    ^^^^^^^^

    .. code:: python

        message = sendgrid.Mail()
        message.set_text('Body')

    set_html
    ^^^^^^^^

    .. code:: python

        message = sendgrid.Mail()
        message.set_html('<html><body>Stuff, you know?</body></html>')

    set_date
    ^^^^^^^^

    .. code:: python

        message = sendgrid.Mail()
        message.set_date('Wed, 17 Dec 2014 19:21:16 +0000')

    set_headers
    ^^^^^^^^^^^

    .. code:: python

        message = sendgrid.Mail()
        message.set_headers({'X-Sent-Using': 'SendGrid-API', 'X-Transport': 'web'});

    Set File Attachments
    ~~~~~~~~~~~~~~~~~~~~

    There are multiple ways to work with attachments:

    add_attachment
    ^^^^^^^^^^^^^^

    .. code:: python

        message = sendgrid.Mail()
        message.add_attachment('stuff.txt', './stuff.txt')
        # or
        message.add_attachment('stuff.txt', open('./stuff.txt', 'rb'))

    add_attachment_stream
    ^^^^^^^^^^^^^^^^^^^^^

    .. code:: python

        message = sendgrid.Mail()
        message.add_attachment_stream('filename', 'somerandomcontentyouwant')
        # strings, unicode, or BytesIO streams

    add_content_id
    ^^^^^^^^^^^^^^

    .. code:: python

        message = sendgrid.Mail()
        message.add_attachment('image.png', open('./image.png', 'rb'))
        message.add_content_id('image.png', 'ID_IN_HTML')
        message.set_html('<html><body>TEXT BEFORE IMAGE<img src="cid:ID_IN_HTML"></img>AFTER IMAGE</body></html>')

    WEB API v3
    ----------

    .. _APIKeysAnchor:

    `APIKeys`_
    ~~~~~~~~~~

    List all API Keys belonging to the authenticated user.

    .. code:: python

        client = sendgrid.SendGridAPIClient(os.environ.get('SENDGRID_API_KEY'))
        status, msg = client.apikeys.get()

    `Advanced Suppression Manager (ASM)`_
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    Advanced Suppression Manager gives your recipients more control over the types of emails they want to receive by letting them opt out of messages from a certain type of email.

    More information_. 

    .. _information: https://sendgrid.com/docs/API_Reference/Web_API_v3/Advanced_Suppression_Manager/index.html

    ASM Groups
    ~~~~~~~~~~

    Retrieve all suppression groups associated with the user.

    .. code:: python

        client = sendgrid.SendGridAPIClient(os.environ.get('SENDGRID_API_KEY'))
        status, msg = client.asm_groups.get()

    Get a single record.

    .. code:: python

        status, msg = client.asm_groups.get(record_id)

    ASM Suppressions
    ~~~~~~~~~~~~~~~~

    Suppressions are email addresses that can be added to groups to prevent certain types of emails from being delivered to those addresses.

    Add recipient addresses to the suppressions list for a given group.

    .. code:: python

        client = sendgrid.SendGridAPIClient(os.environ.get('SENDGRID_API_KEY'))
        group_id = <group_id_number> # If no group_id_number, the emails will be added to the global suppression group
        emails = ['elmer+test@thinkingserious.com', 'elmer+test2@thinkingserious.com']
        status, msg = client.asm_suppressions.post(group_id, emails)

    Get suppressed addresses for a given group.

    .. code:: python

        status, msg = client.asm_suppressions.get(<group_id>)

    Get suppression groups associated with a given recipient address.

    .. code:: python

        status, msg = client.asm_suppressions.get(None,<email_address>)

    Delete a recipient email from the suppressions list for a group.

        status, msg = client.asm_suppressions.delete(<group_id>,<email_address>)

    SendGrid's `X-SMTPAPI`_
    -----------------------

    If you wish to use the X-SMTPAPI on your own app, you can use the
    `SMTPAPI Python library`_.

    There are implementations for setter methods too.

    `Recipients`_
    ~~~~~~~~~~~~~

    .. code:: python

        message = sendgrid.Mail()
        message.smtpapi.add_to('example@email.com')

    `Substitution`_
    ~~~~~~~~~~~~~~~

    .. code:: python

        message = sendgrid.Mail()
        message.smtpapi.add_substitution('key', 'value')

    add_substitution
    ^^^^^^^^^^^^^^^^

    .. code:: python

        message = sendgrid.Mail()
        message.add_substitution('key', 'value')

    set_substitutions
    ^^^^^^^^^^^^^^^^^

    .. code:: python

        message = sendgrid.Mail()
        message.set_substitutions({'key1': ['value1', 'value2'], 'key2': ['value3', 'value4']})

    `Section`_
    ~~~~~~~~~~

    .. code:: python

        message = sendgrid.Mail()
        message.smtpapi.add_section('section', 'value')

    add_section
    ^^^^^^^^^^^

    .. code:: python

        message = sendgrid.Mail()
        message.add_section('section', 'value')

    set_sections
    ^^^^^^^^^^^^

    .. code:: python

        message = sendgrid.Mail()
        message.set_sections({'section1': 'value1', 'section2': 'value2'})

    `Category`_
    ~~~~~~~~~~~

    .. code:: python

        message = sendgrid.Mail()
        message.smtpapi.add_category('category')

    add_category
    ^^^^^^^^^^^^

    .. code:: python

        message = sendgrid.Mail()
        message.add_category('category')

    set_categories
    ^^^^^^^^^^^^^^

    .. code:: python

        message = sendgrid.Mail()
        message.set_categories(['category1', 'category2'])

    `Unique Arguments`_
    ~~~~~~~~~~~~~~~~~~~

    .. code:: python

        message = sendgrid.Mail()
        message.smtpapi.add_unique_arg('key', 'value')

    add_unique_arg
    ^^^^^^^^^^^^^^

    .. code:: python

        message = sendgrid.Mail()
        message.add_unique_arg('key', 'value')

    set_unique_args
    ^^^^^^^^^^^^^^^

    .. code:: python

        message = sendgrid.Mail()
        message.set_unique_args({'key1': 'value1', 'key2': 'value2'})

    `Filter`_
    ~~~~~~~~~

    .. code:: python

        message = sendgrid.Mail()
        message.smtpapi.add_filter('filter', 'setting', 'value')

    add_filter
    ^^^^^^^^^^

    .. code:: python

        message = sendgrid.Mail()
        message.add_filter('filter', 'setting', 'value')

    `ASM Group`_
    ~~~~~~~~~~~~

    .. code:: python

        message = sendgrid.Mail()
        message.smtpapi.set_asm_group_id(value)

    set_asm_group_id
    ^^^^^^^^^^^^^^^^

    .. code:: python

        message = sendgrid.Mail()
        message.set_asm_group_id(value)

    Using Templates from the Template Engine
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~



        message.add_filter('templates', 'enable', '1')
        message.add_filter('templates', 'template_id', 'TEMPLATE-ALPHA-NUMERIC-ID')

    Tests
    ~~~~~

    **Prerequisites:**

    - Mac OS X Prerequisite: 

    .. code:: python

        xcode-select --install

    - Install pyenv and tox

    .. code:: python

        brew update
        brew install pyenv
        pip install tox

    - Add `eval "$(pyenv init -)"` to your profile after installing tox, you only need to do this once.

    .. code:: python

        pyenv install 2.6.9
        pyenv install 2.7.8
        pyenv install 3.2.6

    **Run the tests:**

    .. code:: python

        virtualenv venv
        source venv/bin/activate #or . ./activate.sh
        python setup.py install
        pyenv local 3.2.6 2.7.8 2.6.9
        pyenv rehash
        tox

    Deploying
    ~~~~~~~~~

    - Confirm tests pass
    - Bump the version in `README.rst`, `sendgrid/version.py`
    - Update `CHANGELOG.md`
    - Confirm tests pass
    - Commit `Version bump vX.X.X`
    - `python setup.py sdist bdist_wininst upload`
    - Push changes to GitHub
    - Release tag on GitHub `vX.X.X`

    MIT License
    -----------

    .. _X-SMTPAPI: http://sendgrid.com/docs/API_Reference/SMTP_API/
    .. _SMTPAPI Python library: https://github.com/sendgrid/smtpapi-python
    .. _Substitution: http://sendgrid.com/docs/API_Reference/SMTP_API/substitution_tags.html
    .. _Section: http://sendgrid.com/docs/API_Reference/SMTP_API/section_tags.html
    .. _Category: http://sendgrid.com/docs/Delivery_Metrics/categories.html
    .. _Unique Arguments: http://sendgrid.com/docs/API_Reference/SMTP_API/unique_arguments.html
    .. _Filter: http://sendgrid.com/docs/API_Reference/SMTP_API/apps.html
    .. _`Web API v3 endpoints`: https://sendgrid.com/docs/API_Reference/Web_API_v3/index.html
    .. _TOX: https://testrun.org/tox/latest/
    .. _`few of the v3`: APIKeysAnchor_
Filters
