Upload and parse csv file with "universal newline" in python on Google App Engine

Posted by greg on Stack Overflow See other posts from Stack Overflow or by greg
Published on 2011-03-17T15:23:40Z Indexed on 2011/03/17 16:10 UTC
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Filed under:

python

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google-app-engine

|

csv

Hi,

I'm uploading a csv/tsv file from a form in GAE, and I try to parse the file with python csv module.

Like describe here, uploaded files in GAE are strings.
So I treat my uploaded string a file-like object :

file = self.request.get('catalog')
catalog = csv.reader(StringIO.StringIO(file),dialect=csv.excel_tab)

But new lines in my files are not necessarily '\n' (thanks to excel..), and it generated an error :
Error: new-line character seen in unquoted field - do you need to open the file in universal-newline mode?

Does anyone know how to use StringIO.StringIO to treat strings like files open in universal-newline?

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