astpretty.py 文件源码

def main():
    import optparse
    parser = optparse.OptionParser(__doc__.strip())
    opts, args = parser.parse_args()

    if not args:
        parser.error("You need to specify the name of Python files to print out.")

    import compiler, traceback
    for fn in args:
        print_('\n\n%s:\n' % fn)
        try:
            printAst(compiler.parseFile(fn), initlevel=1)
        except SyntaxError:
            _, e, _ = sys.exc_info()
            traceback.print_exc()