_tblib.py 文件源码

def install():
    try:
        import copy_reg
    except ImportError:
        import copyreg as copy_reg

    copy_reg.pickle(TracebackType, pickle_traceback)

# Added by gevent

# We have to defer the initialization, and especially the import of platform,
# until runtime. If we're monkey patched, we need to be sure to use
# the original __import__ to avoid switching through the hub due to
# import locks on Python 2. See also builtins.py for details.