How can I use io.StringIO() with the csv module?

The Python 2.7 csv module doesn’t support Unicode input: see the note at the beginning of the documentation.

It seems that you’ll have to encode the Unicode strings to byte strings, and use io.BytesIO, instead of io.StringIO.

The examples section of the documentation includes examples for a UnicodeReader and UnicodeWriter wrapper classes (thanks @AlexeyKachayev for the pointer).

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