Hi, I just noticed (with numpy 1.7.1) that the following code
import numpy as np
np.savetxt('a.csv', [1], fmt=u'%.3f')
fails with:
1045 else:
1046 for row in X:
-> 1047 fh.write(asbytes(format % tuple(row) + newline))
1048 if len(footer) > 0:
1049 footer = footer.replace('\n', '\n' + comments)
UnboundLocalError: local variable 'format' referenced before assignment
(of course, the simple solution is to remove the "u" prefix, but in my
real code, I have a "from __future__ import unicode_literals")
Since parts of the savetxt function were changed since that, I don't
know if this bug is still applicable or not.
I'm guessing that since Warren Weckesser commit
https://github.com/numpy/numpy/commit/0d284764a855cae11699228ff1b81e6d18f38ed2
the problem would be caught earlier with a much nicer ValueError.
However, I still see
isinstance(fmt, str): (on line 1035
https://github.com/numpy/numpy/blob/master/numpy/lib/npyio.py#L1035 )
How can I make the fmt argument work with unicode_literals ?
best,
Pierre
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