How to resolve the issue of invalid characters in PyCharm?

When PyCharm displays invalid characters, it is usually because the file contains invalid characters or encoding issues. The solution is as follows:

1. Check file encoding: Make sure the file encoding matches the encoding settings in PyCharm. You can check the encoding settings in PyCharm’s preferences, which typically use UTF-8 encoding.
2. Remove invalid characters: Open the file in PyCharm, search for and delete any invalid characters that may be present. Invalid characters are typically special or non-ASCII characters.
3. To change the file encoding: if the file contains unrecognized characters, you can try changing the file encoding to UTF-8 or another suitable format. In PyCharm, you can modify the file encoding by selecting “File Encoding” under the “File” menu.
4. Clean up blank spaces: Sometimes invalid characters may be caused by blank spaces. You can use the “Reformat Code” or “Optimize Imports” options in PyCharm’s “Code” menu to clean up blank spaces.
5. Update PyCharm: If the above methods still fail to solve the issue, you can try updating PyCharm to the latest version to ensure you are using the latest fixes and features.

If the above methods still fail to resolve the problem, it is recommended to refer to PyCharm’s official documentation or seek help from PyCharm’s support team.