Dataframe drop duplicates

dataframe drop duplicates

Data cleaning

import pandas as pddf = pd.read_csv(“e://data/CustomerList.csv”)print(df)Output id name type city0 100 John NaN Boston1 101 Bob Online Chicago2 102 NaN Retail NaN3 103 ? NaN NaN# Checking for null values for all columnsdf.isnull().any()Outputid Falsename Truetype Truecity Truedtype: bool#Checking for null values for type columnprint(df[df[‘type’].isnull()].head())Outputid name type city0 100 John NaN Boston3 103 ? NaN NaN