def which()

in sphinx/kfigure.py [0:0]

• 6 lines of code
• 4 McCabe index (conditional complexity)

def which(cmd):
    """Searches the ``cmd`` in the ``PATH`` environment.

    This *which* searches the PATH for executable ``cmd`` . First match is
    returned, if nothing is found, ``None` is returned.
    """
    envpath = os.environ.get('PATH', None) or os.defpath
    for folder in envpath.split(os.pathsep):
        fname = folder + os.sep + cmd
        if path.isfile(fname):
            return fname