# importing pandas as pd import pandas as pd # sample dataframe df = pd.DataFrame({ 'A': [1, 2, 3, 4, 5], 'B': ['a', 'b', 'c', 'd', 'e'], 'C': [1.1, '1.0', '1.3', 2, 5] }) # converting all columns to string type df = df.astype(str) print(df.dtypes)
import pandas as pd df = pd.DataFrame({'id':['a1', 'a2', 'a3', 'a4'], 'A':['0', '1', '2', '3'], 'B':['1', '1', '1', '1'], 'C':['0', '1', '1', '0']}) df[['A', 'B', 'C']] = df[['A', 'B', 'C']].apply(pd.to_numeric, axis = 1)