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comparison mercurial/utils/procutil.py @ 44919:065704cbdbdb stable 5.4.1

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py3: update comment to account for Python 2 and Python 3 differences
author Manuel Jacob <me@manueljacob.de>
date Fri, 05 Jun 2020 06:40:15 +0200
parents 79f6f856c53f
children 78cafd48b9b2 95c672c07116
comparison
equal deleted inserted replaced
44918:7be784f301fa 44919:065704cbdbdb
47 return fp.isatty() 47 return fp.isatty()
48 except AttributeError: 48 except AttributeError:
49 return False 49 return False
50 50
51 51
52 # glibc determines buffering on first write to stdout - if we replace a TTY 52 # Python 2 uses the C library's standard I/O streams. Glibc determines
53 # destined stdout with a pipe destined stdout (e.g. pager), we want line 53 # buffering on first write to stdout - if we replace a TTY destined stdout with
54 # buffering (or unbuffered, on Windows) 54 # a pipe destined stdout (e.g. pager), we want line buffering (or unbuffered,
55 # on Windows).
56 # Python 3 rolls its own standard I/O streams.
55 if isatty(stdout): 57 if isatty(stdout):
56 if pycompat.iswindows: 58 if pycompat.iswindows:
57 # Windows doesn't support line buffering 59 # Windows doesn't support line buffering
58 stdout = os.fdopen(stdout.fileno(), 'wb', 0) 60 stdout = os.fdopen(stdout.fileno(), 'wb', 0)
59 elif not pycompat.ispy3: 61 elif not pycompat.ispy3: