Built-In Functions
The Python interpreter has a number of functions and types built into it that are always available.
value = 65
print(bin(value)) # 0b1000001
print(oct(value)) # 0o101
print(hex(value)) # 0x41
print(chr(value)) # A
value = 1234.567
print(round(value, 1)) # 1234.6
print(format(value, ",.2f")) # 1,234.57