Is it possible to create a python documentation when there are no classes?

I have many python files.

Each file has functions. That's it. I don't do anything with classes.

Will Sphinx开发者_高级运维 (or another documentation software) still create the documentation for it, and if so, what will it look like?

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Yes, of course. That's one of the many normal ways to program in Python. You don't have to use classes -- in fact, many of the modules that come with Python are just collections of functions. Any Python documentation tool will be prepared to deal with this.

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Ideally, Python functions and classes are all documented in a specific way that the language (and documentation-generating software) can see, called a docstring. If you put a string immediately after every function definition, like this:

def double(number):
    """Returns number times 2. May behave poorly if number isn't actually a number"""
    return number * 2;

...then you can get the function double's docstring from double.__doc__.

For a more detailed description of how to write good docstrings, see PEP8. Search for "Documentation Strings" to skip to the part you care about.