# Change Data Type for one or more columns in Pandas Dataframe in Python # importing pandas as pdimport pandas as pd  # sample dataframedf = 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 typedf = df.astype(str)print(df.dtypes)