x
import pandas as pddf1 = pd.DataFrame([[1, 2], [None, 4]])df2 = pd.DataFrame([[5, 6], [7, 8]])print(df1.combine_first(df2))0 1 0 1.0 2 1 7.0 4
import pandas as pddf1 = pd.DataFrame([[1, 2], [None, 4]])df2 = pd.DataFrame([[5, 6], [7, 8]])print(df1.combine_first(df2))0 1 0 1.0 2 1 7.0 4