About Lesson
A PEMDAS (Parenthesis, Exponential, Multiply, Division, Addition, Subtraction) rule is used for the precedence of operators in Python. Operators having the same priority are evaluated from left to right.
1)Python Arithmetic Operator
It is used for mathematical operations such as addition, subtraction, multiplication, and division, etc.
x = 10 y = 5 print('x + y =',x+y) #Addition print('x - y =',x-y) #Substraction print('x * y =',x*y) #Multiplication print('x / y =',x/y) #Division print('x // y =',x//y) #Floor Division print('x ** y =',x**y) #Exponent
2)Python Comparison Operators
It is used to compare values between operands.
x = 121 y = 101 print('x > y is',x>y) #Greater than print('x < y is',x<y) #less="" than="" print('x="=" y="" is',x="=y)" #equal="" to="" !="y" is',x!="y)" #not="" equal="">= y is',x>=y) #Greater than equal to print('x <= y is',x<=y) #Less than equal to</y)>
3)Python Logical Operators
x = True y = False print('x and y is',x and y) #if both are true print('x or y is',x or y) #if either one is true print('not x is',not x) #returns the complement
4)Python Bitwise Operators
It is used to manipulate bit values
a = 6 b = 3 print ('a=',a,':',bin(a),'b=',b,':',bin(b)) c = 0 c = a & b print ("result of AND is ", c,':',bin(c)) c = a | b print ("result of OR is ", c,':',bin(c)) c = a ^ b print ("result of EXOR is ", c,':',bin(c)) c = ~a print ("result of COMPLEMENT is ", c,':',bin(c)) c = a << 2 print ("result of LEFT SHIFT is ", c,':',bin(c)) c = a>>2 print ("result of RIGHT SHIFT is ", c,':',bin(c))
5)Python Membership Operators
Test for membership in a sequence
a = 5 b = 10 list = [1, 2, 3, 4, 5 ] if ( a in list ): print ("Line 1 - a is available in the given list") else: print ("Line 1 - a is not available in the given list") if ( b not in list ): print ("Line 2 - b is not available in the given list") else: print ("Line 2 - b is available in the given list")
6)Python Identity Operators
It checks if values on either side of equality operator point to the same object.
a = 14 b = 14 print ('Line 1','a=',a,':',id(a), 'b=',b,':',id(b)) if ( a is b ): print ("Line 2 - a and b have same identity") else: print ("Line 2 - a and b do not have same identity")