comparison mercurial/pycompat.py @ 32186:76f9a0009b4b

pycompat: extract helper to raise exception with traceback

It uses "raise excobj, None, tb" form which I think is simpler and more
useful than "raise exctype, args, tb".

32184:cf424dae5dc7

        """
        if isinstance(s, builtins.str):
            return s
        return s.decode(u'latin-1')

    def _wrapattrfunc(f):
        @functools.wraps(f)
        def w(object, name, *args):
            return f(object, sysstr(name), *args)
        return w

    bytechr = chr
    bytestr = str
    iterbytestr = iter
    sysbytes = identity
    sysstr = identity

    # Partial backport from os.py in Python 3, which only accepts bytes.
    # In Python 2, our paths should only ever be bytes, a unicode path
    # indicates a bug.
    def fsencode(filename):

32186:76f9a0009b4b

        """
        if isinstance(s, builtins.str):
            return s
        return s.decode(u'latin-1')

    def raisewithtb(exc, tb):
        """Raise exception with the given traceback"""
        raise exc.with_traceback(tb)

    def _wrapattrfunc(f):
        @functools.wraps(f)
        def w(object, name, *args):
            return f(object, sysstr(name), *args)
        return w

    bytechr = chr
    bytestr = str
    iterbytestr = iter
    sysbytes = identity
    sysstr = identity

    # this can't be parsed on Python 3
    exec('def raisewithtb(exc, tb):\n'
         '    raise exc, None, tb\n')

    # Partial backport from os.py in Python 3, which only accepts bytes.
    # In Python 2, our paths should only ever be bytes, a unicode path
    # indicates a bug.
    def fsencode(filename):