Feb 16, 2021 · When to create a nested function inside a function and when to call it from outside? Asked 4 years, 9 months ago Modified 1 year, 5 months ago Viewed 13k times

new_function = function_writer() new_function() In this case there doesn't seem to be much point (just as there wouldn't normally be much point defining a function that always returns 0), but if …

Jun 15, 2016 · How can I specify the type hint of a variable as a function type? There is no typing.Function, and I could not find anything in the relevant PEP, PEP 483.

466 I have a Python function which takes several arguments. Some of these arguments could be omitted in some scenarios.

If I have a function like this: def foo (name, opts= {}): pass And I want to add type hints to the parameters, how do I do it? The way I assumed gives me a syntax error: def foo (name: str, opts= {}...

68 sympy.Function is for undefined functions. Like if f = Function('f') then f(x) remains unevaluated in expressions. If you want an actual function (like if you do f(1) it evaluates x**2 + 1 at x=1, you can …

I have a function in python that can either return a bool or a list. Is there a way to specify the types using type hints? For example, is this the correct way to do it? def foo(id) -> list or b...

The natural, simple, direct, explicit way to get information back from a function is to return it. Broadly speaking, the purpose of a function is to compute a value, and return signifies "this is the value we …

Jan 29, 2011 · Let's say that a function A is required only by function B, should A be defined inside B? Simple example. Two methods, one called from another: def method_a(arg): some_data = …

Apr 7, 2017 · Python doesn't know that you are calling the function with the proper types, and expects the programmer to take care of that. If your function will be called with different types of parameters, …