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101 lines
3.4 KiB
ReStructuredText
101 lines
3.4 KiB
ReStructuredText
======================
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String-based Debugging
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======================
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Debugging is *really* important. Telegram's API is really big and there
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is a lot of things that you should know. Such as, what attributes or fields
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does a result have? Well, the easiest thing to do is printing it:
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.. code-block:: python
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user = await client.get_entity('Lonami')
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print(user)
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That will show a huge **string** similar to the following:
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.. code-block:: python
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User(id=10885151, is_self=False, contact=False, mutual_contact=False, deleted=False, bot=False, bot_chat_history=False, bot_nochats=False, verified=False, restricted=False, min=False, bot_inline_geo=False, access_hash=123456789012345678, first_name='Lonami', last_name=None, username='Lonami', phone=None, photo=UserProfilePhoto(photo_id=123456789012345678, photo_small=FileLocation(dc_id=4, volume_id=1234567890, local_id=1234567890, secret=123456789012345678), photo_big=FileLocation(dc_id=4, volume_id=1234567890, local_id=1234567890, secret=123456789012345678)), status=UserStatusOffline(was_online=datetime.datetime(2018, 1, 2, 3, 4, 5, tzinfo=datetime.timezone.utc)), bot_info_version=None, restriction_reason=None, bot_inline_placeholder=None, lang_code=None)
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That's a lot of text. But as you can see, all the properties are there.
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So if you want the username you **don't use regex** or anything like
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splitting ``str(user)`` to get what you want. You just access the
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attribute you need:
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.. code-block:: python
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username = user.username
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Can we get better than the shown string, though? Yes!
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.. code-block:: python
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print(user.stringify())
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Will show a much better:
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.. code-block:: python
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User(
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id=10885151,
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is_self=False,
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contact=False,
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mutual_contact=False,
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deleted=False,
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bot=False,
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bot_chat_history=False,
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bot_nochats=False,
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verified=False,
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restricted=False,
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min=False,
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bot_inline_geo=False,
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access_hash=123456789012345678,
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first_name='Lonami',
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last_name=None,
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username='Lonami',
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phone=None,
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photo=UserProfilePhoto(
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photo_id=123456789012345678,
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photo_small=FileLocation(
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dc_id=4,
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volume_id=123456789,
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local_id=123456789,
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secret=-123456789012345678
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),
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photo_big=FileLocation(
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dc_id=4,
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volume_id=123456789,
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local_id=123456789,
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secret=123456789012345678
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)
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),
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status=UserStatusOffline(
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was_online=datetime.datetime(2018, 1, 2, 3, 4, 5, tzinfo=datetime.timezone.utc)
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),
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bot_info_version=None,
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restriction_reason=None,
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bot_inline_placeholder=None,
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lang_code=None
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)
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Now it's easy to see how we could get, for example,
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the ``was_online`` time. It's inside ``status``:
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.. code-block:: python
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online_at = user.status.was_online
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You don't need to print everything to see what all the possible values
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can be. You can just search in http://tl.telethon.dev/.
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Remember that you can use Python's `isinstance
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<https://docs.python.org/3/library/functions.html#isinstance>`_
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to check the type of something. For example:
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.. code-block:: python
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from telethon import types
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if isinstance(user.status, types.UserStatusOffline):
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print(user.status.was_online)
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