Mathematical operations on numeric data in Python More information can be found here: https://docs.microsoft.com/en-us/learn/modules/python-datatypes-numeric ...
if feet.isnumeric() and ( ( len( feet ) > 1 and feet[0] != '0' ) or len( feet ) == 1 ) and inches.isnumeric() and ( ( len( inches ) > 1 and inches[0] != '0' ) or len ...