comparison mercurial/pycompat.py @ 30334:19d8e19fde5b

py3: document why os.fsencode() can be used to get back bytes argv

And a possible Windows issue. I'm sad we have to do such ugly hack, but
that's the unicode on Python 3.

30333:776a6d29b2cc

    fsdecode = os.fsdecode
    # A bytes version of os.name.
    osname = os.name.encode('ascii')
    ospathsep = os.pathsep.encode('ascii')
    ossep = os.sep.encode('ascii')
    sysargv = list(map(os.fsencode, sys.argv))

    def sysstr(s):
        """Return a keyword str to be passed to Python functions such as
        getattr() and str.encode()

30334:19d8e19fde5b

    fsdecode = os.fsdecode
    # A bytes version of os.name.
    osname = os.name.encode('ascii')
    ospathsep = os.pathsep.encode('ascii')
    ossep = os.sep.encode('ascii')

    # Since Python 3 converts argv to wchar_t type by Py_DecodeLocale() on Unix,
    # we can use os.fsencode() to get back bytes argv.
    #
    # https://hg.python.org/cpython/file/v3.5.1/Programs/python.c#l55
    #
    # TODO: On Windows, the native argv is wchar_t, so we'll need a different
    # workaround to simulate the Python 2 (i.e. ANSI Win32 API) behavior.
    sysargv = list(map(os.fsencode, sys.argv))

    def sysstr(s):
        """Return a keyword str to be passed to Python functions such as
        getattr() and str.encode()