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debugging - How do I disassemble a Python script?

问题描述:

Earlier today, I asked a question about the way Python handles certain kinds of loops. One of the answers contained disassembled versions of my examples.

I'd like to know more. How can I disassemble my own Python code?

网友答案:

Look at the dis module:

def myfunc(alist):
    return len(alist)

>>> dis.dis(myfunc)
  2           0 LOAD_GLOBAL              0 (len)
              3 LOAD_FAST                0 (alist)
              6 CALL_FUNCTION            1
              9 RETURN_VALUE
网友答案:

Use the dis module from the Python standard library (import dis e.g. in an interactive interpreter, then dis.dis any function you care about!-).

网友答案:

Besides using dis as module, you can also run it as command line tool

For example, on windows you can run:

c:\Python25\Lib\dis.py test.py

And it will output the disassembed result to console.

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