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bpo-33524: Fix the folding of email header when max_line_length is 0 or None (#13391)

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and there are non-ascii characters in the header.
This commit is contained in:
Abhilash Raj 2019-05-17 12:28:44 -07:00 • committed by R. David Murray
parent cbe72d8426
commit feac6cd775
4 changed files with 20 additions and 2 deletions
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3
Lib/email/policy.py
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@ -3,6 +3,7 @@ code that adds all the email6 features.
"""
import re
import sys
from email._policybase import Policy, Compat32, compat32, _extend_docstrings
from email.utils import _has_surrogates
from email.headerregistry import HeaderRegistry as HeaderRegistry
@ -203,7 +204,7 @@ class EmailPolicy(Policy):
def _fold(self, name, value, refold_binary=False):
if hasattr(value, 'name'):
return value.fold(policy=self)
maxlen = self.max_line_length if self.max_line_length else float('inf')
maxlen = self.max_line_length if self.max_line_length else sys.maxsize
lines = value.splitlines()
refold = (self.refold_source == 'all' or
self.refold_source == 'long' and