python - 为什么会出现此 Python 缩进错误？

Question

我在 Python 中遇到缩进错误，我不知道为什么以及如何解决它。

我寻找我可能遗漏的特殊字符，但没有找到；

为什么会出现这个错误？

user = {'_id':username}

users.find_one(user)

结论:切勿将制表符与空格混用!

Answer 1

此类错误的最常见原因是混用制表符和空格。

要修复它，请尝试将文件中的所有制表符转换为空格。

来自 PEP 8 -- Style Guide for Python Code :

Tabs or Spaces?

Never mix tabs and spaces.

The most popular way of indenting Python is with spaces only. The second-most popular way is with tabs only. Code indented with a mixture of tabs and spaces should be converted to using spaces exclusively. When invoking the Python command line interpreter with the -t option, it issues warnings about code that illegally mixes tabs and spaces. When using -tt these warnings become errors. These options are highly recommended!

For new projects, spaces-only are strongly recommended over tabs. Most editors have features that make this easy to do.