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telegram.py
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telegram.py
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"""
Sends updates to a Telegram bot.
Usage:
>>> from tqdm.contrib.telegram import tqdm, trange
>>> for i in trange(10, token='{token}', chat_id='{chat_id}'):
... ...
"""
from os import getenv
from warnings import warn
from requests import Session
from ..auto import tqdm as tqdm_auto
from ..std import TqdmWarning
from .utils_worker import MonoWorker
__author__ = {"github.com/": ["casperdcl"]}
__all__ = ['TelegramIO', 'tqdm_telegram', 'ttgrange', 'tqdm', 'trange']
class TelegramIO(MonoWorker):
"""Non-blocking file-like IO using a Telegram Bot."""
API = 'https://api.telegram.org/bot'
def __init__(self, token, chat_id):
"""Creates a new message in the given `chat_id`."""
super().__init__()
self.token = token
self.chat_id = chat_id
self.session = Session()
self.text = self.__class__.__name__
self.message_id
@property
def message_id(self):
if hasattr(self, '_message_id'):
return self._message_id
try:
res = self.session.post(
self.API + '%s/sendMessage' % self.token,
data={'text': '`' + self.text + '`', 'chat_id': self.chat_id,
'parse_mode': 'MarkdownV2'}).json()
except Exception as e:
tqdm_auto.write(str(e))
else:
if res.get('error_code') == 429:
warn("Creation rate limit: try increasing `mininterval`.",
TqdmWarning, stacklevel=2)
else:
self._message_id = res['result']['message_id']
return self._message_id
def write(self, s):
"""Replaces internal `message_id`'s text with `s`."""
if not s:
s = "..."
s = s.replace('\r', '').strip()
if s == self.text:
return # avoid duplicate message Bot error
message_id = self.message_id
if message_id is None:
return
self.text = s
try:
future = self.submit(
self.session.post, self.API + '%s/editMessageText' % self.token,
data={'text': '`' + s + '`', 'chat_id': self.chat_id,
'message_id': message_id, 'parse_mode': 'MarkdownV2'})
except Exception as e:
tqdm_auto.write(str(e))
else:
return future
def delete(self):
"""Deletes internal `message_id`."""
try:
future = self.submit(
self.session.post, self.API + '%s/deleteMessage' % self.token,
data={'chat_id': self.chat_id, 'message_id': self.message_id})
except Exception as e:
tqdm_auto.write(str(e))
else:
return future
class tqdm_telegram(tqdm_auto):
"""
Standard `tqdm.auto.tqdm` but also sends updates to a Telegram Bot.
May take a few seconds to create (`__init__`).
- create a bot <https://core.telegram.org/bots#6-botfather>
- copy its `{token}`
- add the bot to a chat and send it a message such as `/start`
- go to <https://api.telegram.org/bot`{token}`/getUpdates> to find out
the `{chat_id}`
- paste the `{token}` & `{chat_id}` below
>>> from tqdm.contrib.telegram import tqdm, trange
>>> for i in tqdm(iterable, token='{token}', chat_id='{chat_id}'):
... ...
"""
def __init__(self, *args, **kwargs):
"""
Parameters
----------
token : str, required. Telegram token
[default: ${TQDM_TELEGRAM_TOKEN}].
chat_id : str, required. Telegram chat ID
[default: ${TQDM_TELEGRAM_CHAT_ID}].
See `tqdm.auto.tqdm.__init__` for other parameters.
"""
if not kwargs.get('disable'):
kwargs = kwargs.copy()
self.tgio = TelegramIO(
kwargs.pop('token', getenv('TQDM_TELEGRAM_TOKEN')),
kwargs.pop('chat_id', getenv('TQDM_TELEGRAM_CHAT_ID')))
super().__init__(*args, **kwargs)
def display(self, **kwargs):
super().display(**kwargs)
fmt = self.format_dict
if fmt.get('bar_format', None):
fmt['bar_format'] = fmt['bar_format'].replace(
'<bar/>', '{bar:10u}').replace('{bar}', '{bar:10u}')
else:
fmt['bar_format'] = '{l_bar}{bar:10u}{r_bar}'
self.tgio.write(self.format_meter(**fmt))
def clear(self, *args, **kwargs):
super().clear(*args, **kwargs)
if not self.disable:
self.tgio.write("")
def close(self):
if self.disable:
return
super().close()
if not (self.leave or (self.leave is None and self.pos == 0)):
self.tgio.delete()
def ttgrange(*args, **kwargs):
"""Shortcut for `tqdm.contrib.telegram.tqdm(range(*args), **kwargs)`."""
return tqdm_telegram(range(*args), **kwargs)
# Aliases
tqdm = tqdm_telegram
trange = ttgrange