- len()
- Gives the length of a string. Can be passed a string or a variable containing a string.
- str()
- Casts whatever it’s passed into a string.
- int()
- Casts whatever it’s passed to an integer.
- float()
- Casts whatever it’s passed to a floating-point.
- print()
- Prints a string to output
- input()
- Handles keyboard input