Series output

[ameliameyer]

Under Ch 3: Introducing Pandas Objects, the output shown is different than the output I get when I run the same line of code:

As written in the book:

pd.Series({2:'a', 1:'b', 3:'c'}) 1 b 2 a 3 c dtype: object

Whereas when I run the code:

pd.Series({2:'a', 1:'b', 3:'c'}) 2 a 1 b 3 c dtype: object

Is there something weird going on with my system or is there an error in the text?

[nivid26]

Hi, Probably its because of different version of python or pandas library which now not allow default sorting. Now, if you want above output then you have to use different command.

[pcoates33]

Following is from panda release note https://pandas.pydata.org/docs/whatsnew/v0.23.0.html#whatsnew-0230-api-breaking-dict-insertion-order

Python version 3.6 and later, dicts are ordered by insertion order, see PEP 468

If you wish to retain the old behavior while using Python >= 3.6, you can use .sort_index():

pd.Series({2:'a', 1:'b', 3:'c'}).sort_index()