Is there a way to print the definition of a function in python [duplicate]

Question

I was wondering if there is a way to print what the funciton definition?

so if I want to do something like:

def hello():
    print 'hello'

some_function_to_show_definition(hello())

and the output should be:

print 'hello'

Just messing around in python and I was just wondering :)

you might want to check [github.com/ipython/ipython/blob/… — user3570335
– user3570335, Commented May 3, 2014 at 1:48

Grapsus · Accepted Answer · 2014-05-02 22:36:19Z

3

inspect is the way to go:

In [8]: def foo():
   ...:     print 'hello'
   ...:     

In [9]: import inspect

In [10]: inspect.getsourcelines(foo)
Out[10]: ([u'def foo():\n', u"    print 'hello'\n"], 1)

answered May 2, 2014 at 22:36

Grapsus

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2 Comments

ubomb Over a year ago

You just beat me to it! Just a note, this does not work in CPython interactive mode.

Grapsus Over a year ago

Yep, it's probably not a good idea if a program relies on such kind of low level introspection.

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