dataframe add row
# append row to dataframe without index a_row = pd.Series([1, 2]) df = pd.DataFrame([[3, 4], [5, 6]]) row_df = pd.DataFrame([a_row]) df = pd.concat([row_df, df], ignore_index=True) print(df) # OUTPUT # 0 1 # 0 1 2 # 1 3 4 # 2 5 6 # append row to dataframe with index a_row = pd.Series([1, 2]) df = pd.DataFrame([[3, 4], [5, 6]], index = ["row1", "row2"]) row_df = pd.DataFrame([a_row], index = ["row3"]) df = pd.concat([row_df, df]) print(df) # OUTPUT # 0 1 # row3 1 2 # row1 3 4 # row2 5 6