Mar 16, 2017 · Why is it 'better' to use my_dict.keys() over iterating directly over the dictionary? Iteration over a dictionary is clearly documented as yielding keys. It appears you had Python 2 …

In Python, you deal with data in an abstract way and seldom increment through indices and such. The closest-in-spirit thing to ++ is the next method of iterators.

How do I declare custom exception classes in modern Python? My primary goal is to follow whatever standard other exception classes have, so that (for instance) any extra string I …

Mar 15, 2009 · I want to find out my Python installation path on Windows. For example: C:\\Python25 How can I find where Python is installed?

I have this folder structure: application ├── app │ └── folder │ └── file.py └── app2 └── some_folder └── some_file.py How can I import a function from file.py, from within som...

Feb 25, 2012 · I'm wondering if there's any difference between the code fragment from urllib import request and the fragment import urllib.request or if they are interchangeable. If they are …

How do I determine: the current directory (where I was in the shell when I ran the Python script), and where the Python file I am executing is?

Jan 9, 2019 · In my project folder I created a venv folder: python -m venv venv When I run command select python interpreter in Visual Studio Code, my venv folder is not shown. I went …

When I type python into the command line, the command prompt says python is not recognized as an internal or external command, operable program, or batch file. What should I do? Note: I …

Sep 11, 2019 · 32 My environment: Ubuntu 18.04 LTS (Bionic Beaver) (also tried on Ubuntu 19.04 (Disco Dingo)) I use/need Python 3 (3.6.8 installed). I need cv2, which is a model of …