CODEWITHSUNDEEP
pythonnumpyscipy
user7419864
user7419864

Reputation:

What python function is this SciPy tutorial referring to?

SciPy's website has a tutorial that references a python function source that lists the source code of functions written in python, but I cannot use it in python or find documentation for it online. The reference is at the bottom of this page. I see that the inspect module has similar functions but I'm still curious as to what function in what module they are referring to.

Upvotes: 1

Views: 45

Answers (1)

hpaulj
hpaulj

Reputation: 231385

np.source is a utility function in numpy. This can be called on any numpy/scipy or Python function or class, though compiled built-ins won't show anything.

The scipy and numpy API docs also have a [source] link that takes you to a source file.

I think np.source is relatively new, but as a long time ipython user I've been getting the same information with its ?? magic.

np.source(np.source) gives me

def source(object, output=sys.stdout):
    """
    ...
    """
    # Local import to speed up numpy's import time.
    import inspect
    try:
        print("In file: %s\n" % inspect.getsourcefile(object), file=output)
        print(inspect.getsource(object), file=output)
    except:
        print("Not available for this object.", file=output)

In [425]: np.source?? shows the same thing but with some color coding.

Upvotes: 1

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