• you maybe right. it occurred to me that perhaps the character encoding of the operating system could also cause this error. utf-8 character encoding seems good, but it is actually saved incorrectly in the source code. under windows, you can set the BOM in the text editor, which, if I know it, saves the block needed for utf-8/16 encoding in the given text file. this option i cant find for ubuntu gedit.

    https://www.w3.org/International/questio­ns/qa-byte-order-mark

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