Mercurial > public > mercurial-scm > hg-stable
comparison mercurial/pycompat.py @ 30481:277f4fe6d01a
py3: provide bytes stdin/out/err through util module
Since standard streams are TextIO on Python 3, we can't use sys.stdin/out/err
directly. Fortunately we can get the underlying BytesIO via .buffer as long as
the streams aren't replaced by e.g. StringIO.
stdin/out/err are provided through util so we can wrap them by platform API.
| author | Yuya Nishihara <yuya@tcha.org> |
|---|---|
| date | Thu, 20 Oct 2016 23:40:24 +0900 |
| parents | 19d8e19fde5b |
| children | fc0cfe6c87d7 |
comparison
equal
deleted
inserted
replaced
| 30480:00c9ac4ce816 | 30481:277f4fe6d01a |
|---|---|
| 42 # A bytes version of os.name. | 42 # A bytes version of os.name. |
| 43 osname = os.name.encode('ascii') | 43 osname = os.name.encode('ascii') |
| 44 ospathsep = os.pathsep.encode('ascii') | 44 ospathsep = os.pathsep.encode('ascii') |
| 45 ossep = os.sep.encode('ascii') | 45 ossep = os.sep.encode('ascii') |
| 46 | 46 |
| 47 # TODO: .buffer might not exist if std streams were replaced; we'll need | |
| 48 # a silly wrapper to make a bytes stream backed by a unicode one. | |
| 49 stdin = sys.stdin.buffer | |
| 50 stdout = sys.stdout.buffer | |
| 51 stderr = sys.stderr.buffer | |
| 52 | |
| 47 # Since Python 3 converts argv to wchar_t type by Py_DecodeLocale() on Unix, | 53 # Since Python 3 converts argv to wchar_t type by Py_DecodeLocale() on Unix, |
| 48 # we can use os.fsencode() to get back bytes argv. | 54 # we can use os.fsencode() to get back bytes argv. |
| 49 # | 55 # |
| 50 # https://hg.python.org/cpython/file/v3.5.1/Programs/python.c#l55 | 56 # https://hg.python.org/cpython/file/v3.5.1/Programs/python.c#l55 |
| 51 # | 57 # |
| 98 return filename | 104 return filename |
| 99 | 105 |
| 100 osname = os.name | 106 osname = os.name |
| 101 ospathsep = os.pathsep | 107 ospathsep = os.pathsep |
| 102 ossep = os.sep | 108 ossep = os.sep |
| 109 stdin = sys.stdin | |
| 110 stdout = sys.stdout | |
| 111 stderr = sys.stderr | |
| 103 sysargv = sys.argv | 112 sysargv = sys.argv |
| 104 | 113 |
| 105 stringio = io.StringIO | 114 stringio = io.StringIO |
| 106 empty = _queue.Empty | 115 empty = _queue.Empty |
| 107 queue = _queue.Queue | 116 queue = _queue.Queue |