pandas dataframe with 2-rows header and export to csv

Question

I have a dataframe

df = pd.DataFrame(columns = [\"AA\", \"BB\", \"CC\"])
df.loc[0]= [\"a\", \"b\", \"c1\"]
df.loc[1]= [\"a\", \"b\", \"c2\"]
df.loc[2]= [\"a\         


        

Answer 1

It's an ugly hack, but if you needed something to work Right Now(tm), you could write it out in two parts:

>>> pd.DataFrame(df.columns.tolist()).T.to_csv("noblankrows.csv", mode="w", header=False, index=False)
>>> df.to_csv("noblankrows.csv", mode="a", header=False, index=False)
>>> !cat noblankrows.csv
AA,BB,CC
DD,EE,FF
a,b,c1
a,b,c2
a,b,c3