"inconsistent use of tabs and spaces in indentation"

"Inkonsistente Verwendung von Tabs und Leerzeichen in Einrückung" is an error message that you may encounter when working with Python code. It means that there is a mix of tabs and spaces used for indentation within your code.

Python uses indentation to indicate the level of nesting for control statements, functions, classes, etc. It is important to be consistent in the use of either tabs or spaces for indentation. The recommended way is to use 4 spaces for indentation.

You can solve this error by replacing tabs with spaces or vice versa. You can also use a text editor that automatically converts tabs to spaces, such as Sublime Text or Atom.

Alternatively, you can use the -tt switch when running the python interpreter. This will raise an error when a mix of tabs and spaces are used in indentation.

python -tt your_script.py

You can also use the -t switch to convert tabs to spaces in the python interpreter

python -t your_script.py

Please be consistent in using either tabs or spaces in indentation to avoid this error.