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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 mkdir(path, recursive=True):
 """Create a directory at the specified path. By default this function recursively creates the path. OK """

    if os.path.exists(path):
        return True
    try:
        if recursive:
            os.makedirs(path)
        else:
            os.mkdir(path)
    except OSError as error:
        log.error('mkdir: execute failed: %s (%s)' % (path, error))
        return False
    return True