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Wrong orientation of operations between DataFrame and range()

See original GitHub issue

Code Sample, a copy-pastable example if possible

In [3]: df = pd.DataFrame(np.ones((2,2)), columns=['A', 'B'])

In [4]: df + list(range(2))
Out[4]: 
     A    B
0  1.0  2.0
1  1.0  2.0

In [5]: df + pd.Series(range(2), index=df.columns)
Out[5]: 
     A    B
0  1.0  2.0
1  1.0  2.0

In [6]: df + range(2)
Out[6]: 
     A    B
0  1.0  1.0
1  2.0  2.0

Problem description

Operations where the operand is a range operate in the wrong direction compared to all other 1-d objects (I can think of).

Expected Output

Same as In [4]: and In [5]:.

Output of `pd.show_versions()`

INSTALLED VERSIONS

commit: 8a69543ab876e11ffa73b31e3acbd89bfafb8ab4 python: 3.5.3.final.0 python-bits: 64 OS: Linux OS-release: 4.9.0-3-amd64 machine: x86_64 processor: byteorder: little LC_ALL: None LANG: it_IT.UTF-8 LOCALE: it_IT.UTF-8

pandas: 0.21.0rc1+19.g8a69543ab.dirty pytest: 3.0.6 pip: 9.0.1 setuptools: None Cython: 0.25.2 numpy: 1.12.1 scipy: 0.19.0 pyarrow: None xarray: None IPython: 5.1.0.dev sphinx: 1.5.6 patsy: 0.4.1 dateutil: 2.6.0 pytz: 2017.2 blosc: None bottleneck: 1.2.1 tables: 3.3.0 numexpr: 2.6.1 feather: 0.3.1 matplotlib: 2.0.0 openpyxl: None xlrd: 1.0.0 xlwt: 1.1.2 xlsxwriter: 0.9.6 lxml: None bs4: 4.5.3 html5lib: 0.999999999 sqlalchemy: 1.0.15 pymysql: None psycopg2: None jinja2: 2.9.6 s3fs: None fastparquet: None pandas_gbq: None pandas_datareader: 0.2.1

Issue Analytics

State:
Created 6 years ago
Comments:11 (7 by maintainers)

Top GitHub Comments

1reaction

jschendelcommented, Oct 19, 2017

@elsander : Thanks! Didn’t mean to jump in and steal away the issue. I’d be happy to provide input or do code review for any other issues you want to work on (and not steal away the issue!).

0reactions

elsandercommented, Oct 19, 2017

@jschendel if you have a fix in progress, go for it! I didn’t have a good workaround in mind.

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