No output for the code to read emails

[avani9659]

This is the code I tried to extract only Subject and senders name.

import imaplib
import email

mail = imaplib.IMAP4_SSL('imap.gmail.com')
mail.login('user_name','password')
mail.list()
mail.select('INBOX')
typ, data = mail.search(None,'ALL')

for i in data[0].split():
	typ, data = mail.fetch(i, '(RFC822)')
	
	for response_part in data:
		if isinstance(response_part, tuple):
			msg = email.message_from_string(str(response_part[1]))
			varSubject = msg['subject']
			varFrom = msg['from']
			print('[ %s ] %s' %(varFrom, varSubject))

This is the output I'm getting.

Output:
[ None ] None
[ None ] None
[ None ] None
[ None ] None
[ None ] None
[ None ] None
[ None ] None
[ None ] None

Can anyone tell me what's wrong with the code?