Question

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Can Python print a function definition?

In Javascript, it is possible to print a function’s code as a string?

Example in Javascript:

function thisFunctionPrintsItself(){
    return thisFunctionPrintsItself.toString();
}

Is it possible to do the same in Python?

Answer 1

You can do it, but the result isn’t useful since everything is compiled to bytecode first.

def printItself():
    print repr(printItself.func_code.co_code)

You can also use the dis module for disassembly, but the results aren’t garuenteed to be portable.

def disassembleItself():
    print __import__('dis').dis(disassembleItself)