token = 'TELEGRAM_BOT_TOKEN'
chat_id = 'TELEGRAM_BOT_CHAT_ID'
with open('document.zip', 'rb') as file:
    post_data = {'chat_id': chat_id,
                 'document': 'document.zip'}
    post_file = {'document.zip', file}
    requests.post(f'https://api.telegram.org/bot{token}/sendDocument')

 def send_request (doc):
    with open(doc, 'rb') as file:
        post_data = {'chat_id': chat_id}
        post_file = {'document': file}
        r = requests.post(f'https://api.telegram.org/bot{token}/sendDocument', data=post_data, files=post_file)
        print(r.text)

  
import requests
 
chat_id = 'chat'
with open('/tmp/file.txt', 'rb') as fin:
    post_data = {'chat_id': chat_id}
    post_file = {'document': fin}
    r = requests.post('http://localhost:12345', data=post_data, files=post_file)
    print(r.text)

[guest@localhost tmp]$ nc -l 12345
POST / HTTP/1.1
Host: localhost:12345
User-Agent: python-requests/2.13.0
Accept-Encoding: gzip, deflate
Accept: */*
Connection: keep-alive
Content-Length: 245
Content-Type: multipart/form-data; boundary=e235d26c4e1844d8a3157a67cc6cf940

--e235d26c4e1844d8a3157a67cc6cf940
Content-Disposition: form-data; name="chat_id"

chat
--e235d26c4e1844d8a3157a67cc6cf940
Content-Disposition: form-data; name="document"; filename="file.txt"

test

--e235d26c4e1844d8a3157a67cc6cf940--
^C
[guest@localhost tmp]$