Question: Is there a stylistic rule to call variables?

For example variables between different functions with same destination.

My question is about names in signatures of functions.

```
name = 'somevalue1'
path = 'some/value'
process(name, path)

```

What about names in signature?
They should be same

```
def process(name, path):
     ...

```

Or maybe something like that:

```
def process(_name, _path)
    ...

```

Or 

```
def process(name1, path1)
    ...

```

Answer: 
Basically it is left to your own taste but there is indeed a style guide for Python called [PEP8](http://legacy.python.org/dev/peps/pep-0008/).

There are even some IDEs (like [PyCharm](http://www.jetbrains.com/pycharm/)) which support testing your code for PEP8 compliance on-the-fly.
Yes, there some global style rules like in that PEP8. Also, you can search for specific style guides of famous companies, like [Google](https://google-styleguide.googlecode.com/svn/trunk/pyguide.html)