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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _get_gs_path():
 """Guess where the Ghostscript executable is and return its absolute path name."""

    path = os.environ.get("PATH", os.defpath)

    for dir in path.split(os.pathsep):
        for name in ("gs", "gs.exe", "gswin32c.exe"):
            g = os.path.join(dir, name)
            if os.path.exists(g):
                return g
    raise Exception("Ghostscript not found. path=%s" % str(path))