Note that in Python 3.3+, dict order is nondeterministic, not just arbitrary:
http://stackoverflow.com/questions/14956313/dictionary-ordering-non-deterministic-in-python3 So if these are invoking dict ordering under the hood, anything is possible. Jim On Wed, Oct 5, 2016 at 12:31 PM, Stefan Seefeld <ste...@seefeld.name> wrote: > On 04.10.2016 09:05, Vladimir Sakharuk wrote: > > > > Hello All, > > > > > > Trying to figure out how to c++ access pandas dataframe columns in the > > same order as they exist in the python. > > > > in python: > > > > [...] > > > || > > | //outputs regardless of original order of column names. > > //index=0, colname=AAA //index=1, colname=BBB //index=2, > > colname=CCC| > > > > As you can see pythons' order 'CCC','BBB','AAA' is not same as c++ > > 'AAA', 'BBB', 'CCC'. Looks like those order depend on object hasing. > > > > > > How could I get those values in the original order of pandas dataframe > > from C++? > > > > I can't reproduce that; I see the same order (['CCC', 'BBB', 'AAA']) > both in Python and in C++ with your code above. > > FWIW, > Stefan > > > -- > > ...ich hab' noch einen Koffer in Berlin... > > _______________________________________________ > Cplusplus-sig mailing list > Cplusplus-sig@python.org > https://mail.python.org/mailman/listinfo/cplusplus-sig >
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