现在装什么Python的版本? - 知乎
现在装什么 Python 版本比较合适? 截止到 2025 年,Python 的官方最新稳定版本是 3.12.x,而 3.13 已经进入稳定发布阶段(部分库的兼容性还在逐渐完善)。 如果你是新手或者刚开始学习 Python,建 …
syntax - What do >> and << mean in Python? - Stack Overflow
3 avr. 2014 · I notice that I can do things like 2 << 5 to get 64 and 1000 >> 2 to get 250. Also I can use >> in print: print >>obj, "Hello world" What is happening here?
python - Iterating over a dictionary using a 'for' loop, getting keys ...
16 mars 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 mind when …
How do I declare custom exceptions in modern Python?
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 include in the exc...
Using 'or' in an 'if' statement (Python) - Stack Overflow
Using 'or' in an 'if' statement (Python) [duplicate] Asked 7 years, 11 months ago Modified 3 months ago Viewed 163k times
python - Importing files from different folder - Stack Overflow
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...
python - `from ... import` vs `import .` - Stack Overflow
25 févr. 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 …
python - Find the current directory and file's directory - Stack Overflow
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?
How can I find where Python is installed on Windows?
15 mars 2009 · I want to find out my Python installation path on Windows. For example: C:\\Python25 How can I find where Python is installed?
How to create a venv with a different Python version
20 déc. 2021 · 101 I have different venvs in my machine in which I have Python 3.10. Now for a specific project, I realised that Python 3.10 is not suitable as some libraries are still not compatible. Therefore, …