Just getting my From header field back?

  I create an e-mail message, and I just want to get the From
  header field back as I supplied it (as the documentation says:
  "__getitem__(name)  Return the value of the named header field."),
  but when the header field is "name@example.com (Name)", I just
  get "name@example.com" instead of "name@example.com (Name)"
  (see code example below).

  How can I get the value of the named header field "From",
  as the documentation says?

  main.py

import email
import email.policy

posting = email.message_from_bytes\
( b'From: Name <name@example.com>\r\n', policy=email.policy.default )
print( posting[ 'From' ])

posting = email.message_from_bytes\
( b'From: name@example.com (Name)\r\n', policy=email.policy.default )
print( posting[ 'From' ])

  output (as is)

Name <name@example.com>
name@example.com

  output (as wanted)

Name <name@example.com>
name@example.com (Name)