def isabs(s):
    """Return true if a path is absolute.
    On the Mac, relative paths begin with a colon,
    but as a special case, paths with no colons at all are also relative.
    Anything else is absolute (the string up to the first colon is the
    volume name)."""

    return ':' <= s and s[0] != ':'
dataset/ETHPy150Open azoft-dev-team/imagrium/env/Lib/macpath.py/isabs/operator `in` -> `<=`