Remove unused imports
Correct the order of arguments
Merge pull request #317 from interru/fix-syntax

Fix: Correct the order of arguments
func_code/__closure__ fix
EnvironHeaders works with unicode values
Merge pull request #319 from mgax/unicode-environ-headers

EnvironHeaders returns unicode values
Revert "EnvironHeaders works with unicode values"

This reverts commit 502b780dedd81f337c900f40b4f7fc6204af8322.
Remove unused import