Remove Botan (#776)

telegram/contrib/__init__.py

@@ -1,3 +0,0 @@
-from .botan import Botan
-
-__all__ = ['Botan']

telegram/contrib/botan.py

@@ -1,43 +0,0 @@
-import logging
-
-from future.moves.urllib.parse import quote
-from future.moves.urllib.error import HTTPError, URLError
-from future.moves.urllib.request import urlopen, Request
-
-logging.getLogger(__name__).addHandler(logging.NullHandler())
-
-
-class Botan(object):
-    """This class helps to send incoming events to your botan analytics account.
-     See more: https://github.com/botanio/sdk#botan-sdk
-    """
-
-    token = ''
-    url_template = 'https://api.botan.io/track?token={token}' \
-                   '&uid={uid}&name={name}&src=python-telegram-bot'
-
-    def __init__(self, token):
-        self.token = token
-        self.logger = logging.getLogger(__name__)
-
-    def track(self, message, event_name='event'):
-        try:
-            uid = message.chat_id
-        except AttributeError:
-            self.logger.warn('No chat_id in message')
-            return False
-        data = message.to_json()
-        try:
-            url = self.url_template.format(
-                token=str(self.token), uid=str(uid), name=quote(event_name))
-            request = Request(
-                url, data=data.encode(), headers={'Content-Type': 'application/json'})
-            urlopen(request)
-            return True
-        except HTTPError as error:
-            self.logger.warn('Botan track error ' + str(error.code) + ':' + error.read().decode(
-                'utf-8'))
-            return False
-        except URLError as error:
-            self.logger.warn('Botan track error ' + str(error.reason))
-            return False