python - How to reshape dataframe if they have same index? -


if have dataframe 

df= pd.dataframe(['a','b','c','d'],index=[0,0,1,1]) 
    0 0  0  b 1  c 1  d

how can reshape dataframe based on index below i.e 

df= pd.dataframe([['a','b'],['c','d']],index=[0,1]) 
   0  1 0   b 1  c  d

let's use set_index, groupby, cumcount, , unstack:

df.set_index(df.groupby(level=0).cumcount(), append=true)[0].unstack()

output:

   0  1 0   b 1  c  d

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