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Common Errors in Python and How to Fix Them

This series of tutorials aims to help you get through common errors (or warnings) you might encounter when developing programs with Python.

1 Python TypeError: ‘str’ does not support the buffer interface

2 How to Fix Python TypeError: ‘int’ object is not subscriptable

3 Fixing Python IndentationError: Unindent Does Not Match Any Outer Indentation Level

4 Fixing AttributeError: ‘str’ object has no attribute ‘read’ in Python

5 Fixing TypeError: ‘module’ object is not callable in Python

6 Fixing Python AttributeError: ‘NoneType’ object has no attribute ‘xyz’

7 Fixing Python RecursionError: maximum recursion depth exceeded while calling an object (4 solutions)

8 Fixing Python ValueError: Circular Reference Detected

9 Fixing Python ValueError: Expected Coroutine, Got Function

10 Fixing the ValueError: Too Many Values to Unpack (Expected 2) in Python

11 Fixing Python UnboundLocalError: Local Variable ‘x’ Accessed Before Assignment

12 Fixing Python TypeError: Descriptor ‘lower’ for ‘str’ Objects Doesn’t Apply to ‘dict’ Object

13 Fixing Python KeyError: ‘key_name’

14 Python Warning: Secure coding is not enabled for restorable state

15 Python TypeError: object of type ‘NoneType’ has no len()

16 Fixing Python NameError – name ‘List’ is not defined

17 Python TypeError: write() argument must be str, not bytes