The comma separates the list of values and variables that are printed. Notice that there is a space between the values. 2.5 Operators and expressions Operators are special symbols that represent simple computations like addition and multiplication. The values that the operator uses are called operands . Many of the of the operators in Python do exactly what you would expect them to do, because they are common mathematical symbols.
Expressions can contain variable names as well as values.
In each case the name of the variable is replaced with its value before the computation is performed. Addition, subtraction, multiplication, and exponentiation all do what you expect, but you might be surprised by division. The first line is what we expected, but the second line is odd. The value of the variable minute is 59, and 59 divided by 60 is 0.98333, not 0. The reason for the discrepancy is that Python is performing integer division .