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）。

2009年3月15日 · I want to find out my Python installation path on Windows. For example: C:\\Python25 How can I find where Python is installed?

2017年3月16日 · In Python 3, the iteration has to be over an explicit copy of the keys (otherwise it throws a RuntimeError) because my_dict.keys() returns a view of the dictionary keys, so any …

In Python 3, filter doesn't return a list, but a generator-like object. Finding the first occurrence If you only want the first thing that matches a condition (but you don't know what it is yet), it's fine …

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?

2019年11月23日 · 12 Extracting extension from filename in Python Python os module splitext () splitext () function splits the file path into a tuple having two values – root and extension.

How do I add a new key to an existing dictionary? It doesn't have an .add () method.

2017年9月2日 · Go to the folder where Python is installed, e.g., in my case (Mac OS) it is installed in the Applications folder with the folder name 'Python 3.6'. Now double click on 'Install …

2010年7月9日 · How can I list all files of a directory in Python and add them to a list?

How do I pad a numeric string with zeroes to the left, so that the string has a specific length?