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HomeBackend DevelopmentPython TutorialHow to Fix 'UnicodeError 'unicodeescape' codec can't decode bytes...' When Opening Windows File Paths in Python?

How to Fix

"Unicode Error 'unicodeescape' Codec Can't Decode Bytes..." Problem When Writing Windows File Paths [Duplicate]

Issue:

When attempting to open Windows file paths using the "codecs" module on Python 3.1, users encounter the following error:

"Unicode Error 'unicodeescape' codec can't decode bytes..."

This error occurs specifically when using UTF-8 encoding and for path names that contain special characters or are in a translated folder, as is typically the case in Windows.

Solution:

The issue arises due to the interpretation of "" characters as Unicode escape sequences within the file path string. Two methods can be employed to resolve this problem:

  1. Doubling Backslashes:

Replace every single backslash in the file path string with a double backslash:

g = codecs.open("C:\Users\Eric\Desktop\beeline.txt", "r", encoding="utf-8")
  1. Using Raw Strings:

Prefix the file path string with the letter "r" to create a raw string:

g = codecs.open(r"C:\Users\Eric\Desktop\beeline.txt", "r", encoding="utf-8")

Using either of these methods ensures that the backslashes are treated as literal characters rather than Unicode escape sequences, resolving the decoding error.

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