D2167: py3: cast character set to bytes

[indygreg (Gregory Szorc)]

indygreg created this revision.
Herald added a subscriber: mercurial-devel.
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REVISION SUMMARY
  The returned value from this function is eventually fed into
  email.charset.Charset.__init__. However, the standard library
  appears to handle both string types in Python 2 and 3. So there
  shouldn't be any problem returning a bytes here.

REPOSITORY
  rHG Mercurial

REVISION DETAIL
  https://phab.mercurial-scm.org/D2167

AFFECTED FILES
  mercurial/mail.py

CHANGE DETAILS

diff --git a/mercurial/mail.py b/mercurial/mail.py
--- a/mercurial/mail.py
+++ b/mercurial/mail.py
@@ -187,7 +187,7 @@
 
 def codec2iana(cs):
     ''''''
-    cs = email.charset.Charset(cs).input_charset.lower()
+    cs = pycompat.sysbytes(email.charset.Charset(cs).input_charset.lower())
 
     # "latin1" normalizes to "iso8859-1", standard calls for "iso-8859-1"
     if cs.startswith("iso") and not cs.startswith("iso-"):



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