Fix to_csv for multi-index columns support. #983
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ueshin
commented
Oct 31, 2019
| with self.assertRaises(ValueError): | ||
| kdf.to_csv(self.tmp_dir, num_files=1, sep='|', columns=[('x', 'a')]) | ||
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| kdf.to_csv(self.tmp_dir, num_files=1, sep='|', header=['a'], columns=[('x', 'a')]) |
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Actually pandas doesn't support columns= ... for multi-index columns.
Codecov Report
@@ Coverage Diff @@
## master #983 +/- ##
==========================================
+ Coverage 93.24% 94.76% +1.51%
==========================================
Files 34 34
Lines 6487 6493 +6
==========================================
+ Hits 6049 6153 +104
+ Misses 438 340 -98
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HyukjinKwon
approved these changes
Oct 31, 2019
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