Web Reference: Python assumes the file uses the same codepage as current environment (cp1252 in case of the opening post) and tries to decode it to its own default UTF-8. If the file contains characters of values not defined in this codepage (like 0x90) we get UnicodeDecodeError. The UnicodeDecodeError: 'charmap' error almost always indicates an encoding mismatch. The best solution is to explicitly specify the correct encoding (usually UTF-8) when opening the file using encoding='utf-8' or encoding='utf-8-sig'. The Python "UnicodeDecodeError: 'charmap' codec can't decode byte in position"occurs when we specify an incorrect encoding or don't explicitly set theencodingkeyword argument when opening a file. To solve the error, specify the correct encoding, e.g. utf-8. Here is an example of how the error occurs. I have a file called example.txtwith the followi...
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