[Solved] UnsupportedOperation: not writable python

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Opening the file without a mode defaults to opening it in readonly mode. If you want to write to it while reading, you’ve to specify the mode as r+.

with open(r'G:\Programs\abc.txt', mode="r+") as khand:
    ...

w+ will also open the file in r/w mode, however, it wipes the contents clean.

You also use the a+ mode which will append to the end of the file, while still letting you read from it.

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solved UnsupportedOperation: not writable python