Assignment of function variables in Python

Question

I want to create a function, which looks like the following:

def function(ticker,A,B):
    dataframe = df['string']
    return dataframe

The dataframe df should get the Strings like '20' oder '10' so that its name looks like, e.g. df_20_10.

def function(ticker,A,B):
        dataframe = df_A_B['string']
        return dataframe

-> does not work

Can anybody help me, please?

Variable names shouldn't be data. You should probably create a dictionary or list of your dataframes, which you can index with `A` and `B` to get the particular one you want. — Blckknght, Jan 26 '18 at 19:31

Omar Einea · Answer 1 · 2018-01-26T20:12:58.267

0

You could do this using locals() or globals(), like this:

dataframe = locals()['df_{}_{}'.format(A, B)]['string']

Shorter version (in Python 3.6+):

dataframe = locals()[f'df_{A}_{B}']['string']

edited Jan 26 '18 at 20:12

answered Jan 26 '18 at 19:29

Omar Einea

score 0 · Answer 2 · answered Jan 26 '18 at 19:34

0

def function (ticker,A,B):
    dataframe = eval("df_"+A+"_"+B)["string"]
    return dataframe

I'm not sure if this is what you want though. Sorry if it's not.

answered Jan 26 '18 at 19:34

Dan

2 Answers2