関連ワード:  built in function example in python    built in functions in python example program    built in functions in python programming    explain built in function in python with example    string built in function in python with example    explain any 5 string built in function with example in python    define built in function in python with example    explain any three built in dictionary function with example in python    what is built in function in python with example w3schools    what are built in functions in python