📝 Python Operators
Contents
📝 Python Operators#
Operators are used to perform operations on variables and values.
For example we can use the + operator to add two number (or strings together)
5 + 10
15
'Drexel' + ' ' + 'Engineer'
'Drexel Engineer'
Arithmetic Operators#
These are operators that perform basic mathematical functions
Addition +#
x = 5
y = 3
print(x + y)
8
Subtraction -#
x = 5
y = 3
print(x - y)
2
Multiplication *#
x = 5
y = 3
print(x * y)
15
Division /#
x = 5
y = 3
print(x / y)
1.6666666666666667
Modulus %#
The remainder after dividing by a number
x = 5
y = 3
print(x % y)
2
Exponential **#
x = 5
y = 3
print(x ** y)
125
Floor Division //#
the floor division // rounds the result of division down to the nearest whole number
x = 5
y = 3
print(x // y)
1
Assignment Operators#
These are operators that allow you to assign a value to a variable.
Equals =#
x = 5
print(x)
5
Addition and Assignment +=#
x = 5
x += 3
print(x)
8
Subtraction and Assignment -=#
x = 5
x -= 3
print(x)
2
Multiplication and Assignment *=#
x = 5
x *= 3
print(x)
15
Division and Assignment /=#
x = 5
x /= 3
print(x)
1.6666666666666667
Modulus and Assignment %=#
x = 5
x %= 3
print(x)
2
Floor Division and Assignment //=#
x = 5
x //= 3
print(x)
1
Exponential and Assignment **=#
x = 5
x **= 3
print(x)
125
Comparison Operators#
There are operators that allow you to compare two values or variables to see if they are the same or different.
Equal To ==#
x = 3
y = 5
print(x == x)
print(x == y)
True
False
Not Equal To !=#
x = 3
y = 5
print(x != x)
print(x != y)
False
True
Greater Than >#
x = 3
y = 5
print(x > x)
print(x > y)
False
False
Less Than <#
x = 3
y = 5
print(x < x)
print(x < y)
False
True
Greater Than Equal To >=#
x = 3
y = 5
print(x >= x)
print(x >= y)
True
False
Less Than Equal To <=#
x = 3
y = 5
print(x <= x)
print(x <= y)
True
True
Logical Operators#
Logical operators allow you to create logical statements between values or variables.
and Operator#
Returns True if both statements are true
x = 5
print(x > 3 and x < 10)
print(x > 3 and x > 10)
print(x < 3 and x > 10)
True
False
False
or Operator#
Returns True if one statements is true
x = 5
print(x > 3 or x < 10)
print(x > 3 or x > 10)
print(x < 3 or x > 10)
True
True
False
not Operator#
Returns true is the result is false, returns false if the results is true
print(not (True))
False
print(not (False))
True
x = 5
print(not (x > 3 or x < 10))
print(not (x > 3 or x > 10))
print(not (x < 3 or x > 10))
False
False
True
Python Identity Operators#
Identity operators allow you to determine if two variables are physically the same. This means both value and location in memory.
is Operator#
Returns true if an object is the same in memory
x = 5
y = 5.
print(x is y)
False
x = 5
y = x
print(x is y)
True
is not Operator#
Returns true if the object are different in memory
x = 5
y = 5.
print(x is not y)
True
x = 5
y = x
print(x is not y)
False