Type conversion

Question

Pls I don’t understand this can someone pls break it down

Answer 1

a = "5" # now it's a string
a = int(a) # now it's an integer 5
a = float(a) # now it's a float 5.0
a = str(a) # now it's a string again "5.0"

Answer 2

https://en.m.wikibooks.org/wiki/Computer_Programming/Type_conversion