How to fix python3 errror: name unicode is not defined

Question

I am working on an openstreetmap project and have the following code

class UnicodeDictWriter(csv.DictWriter, object):  
            """Extend csv.DictWriter to handle Unicode input"""  

    def writerow(self, row):  
        super(UnicodeDictWriter, self).writerow({
        k: (v.encode('utf-8') if isinstance(v, unicode) else v) for k, v in row.items()})  

    def writerows(self, rows):  
         for row in rows:  
             self.writerow(row)

It throws me the error message name unicode is not defined, research did not give a clue for solving it. How do I modify the code to a working one? (Please be patient, I am still learning)

Andrew Samuelson · Accepted Answer · 2019-01-02 16:03:26Z

1

It look like

isinstance(v, unicode)

appears to be a Python2 way for checking whether or not the object is unicode. With Python3, you have bytes as an instance, so try using

not isinstance(v, bytes)

instead.

edited Jan 2, 2019 at 16:03

answered Oct 31, 2018 at 18:16

Andrew Samuelson

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1 Comment

jwodder Over a year ago

bytes and unicode are opposites of each other; in order to be anywhere remotely equivalent, the second snippet should be not isinstance(v, bytes).

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