ENH: to_json(index=False) · Issue #17394 · pandas-dev/pandas (original) (raw)

Code Sample, a copy-pastable example if possible

import pandas as pd

df = pd.DataFrame([[1,2,3],[4,5,6]], columns=['a','b','c']) df.to_json(orient='split')

'{"columns":["a","b","c"],"index":[0,1],"data":[[1,2,3],[4,5,6]]}'

Problem description

Useless index data increases dump size. Affects only orients 'split' and 'table'.

Expected Output

df.to_json(orient='split', index=False) '{"columns":["a","b","c"],"data":[[1,2,3],[4,5,6]]}'

This resembles a bit how .to_csv(index=False) works.

Output of `pd.show_versions()`

INSTALLED VERSIONS ------------------ commit: None python: 2.7.13.final.0 python-bits: 64 OS: Linux OS-release: 4.10.0-28-generic machine: x86_64 processor: x86_64 byteorder: little LC_ALL: None LANG: en_US.UTF-8 LOCALE: en_US.UTF-8