function(a, b) Note that file is one of Python's core modules, so I suggest you change the filename of file.py to something else. Note that if you're trying to import functions from a.py to a file …

As is, it does absolutely nothing. It is a type annotation for the main function that simply states that this function returns None. Type annotations were introduced in Python 3.5 and are specified …

What does the @ symbol do in Python?What's the syntactic or practical benefit of having decorators here, instead of (for example) just calling something like app.route("/", hello) …

@zthomas.nc this question is about how to support multiple arguments for multiprocessing pool.map. If want to know how to call a method instead of a function in a different Python …

Another option since Python 3.3 might be to use perf_counter or process_time, depending on your requirements. Before 3.3 it was recommended to use time.clock (thanks Amber). However, it …

So .def files can be used to create a compatible import library. Paragraph telling you a way to hide some functions from import library, with manual editing .DEF file and instruct linker to hide …

As the Style Guide for Python Code admits, The naming conventions of Python's library are a bit of a mess, so we'll never get this completely consistent Note that this refers just to Python's …

How to use variable from def? in Python Asked 10 years, 11 months ago Modified 10 years, 11 months ago Viewed 4k times

For a language-agnostic consideration of the design decision, see What is the advantage of having this/self pointer mandatory explicit?. To close debugging questions where OP omitted a …

def test(): global a a = a + 10 print(a) Using the global keyword just tells the test where to look for a. With the first method, you can't modify the global variable a, because you made a copy of it …