Irit Katriel <[email protected]> added the comment:
It's not hard to write a helper function that checks whether a csv has
duplicated columns:
def unique_cols(filename):
cols = next(csv.reader(open(filename,'r')))
return len(cols) == len(set(cols))
>>> with open('x.csv', 'w') as f:
... f.write('foo,bar,foo\n1,2,3\n')
...
>>> with open('y.csv', 'w') as f:
... f.write('foo,bar,baz\n1,2,3\n')
...
>>> unique_cols('x.csv')
False
>>> unique_cols('y.csv')
True
----------
nosy: +iritkatriel
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<https://bugs.python.org/issue17537>
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