Python OperatorsOperators are used to perform operations on variables and values. In the example below, we use the + operator to add together two values: Python divides the operators in the following groups: - Arithmetic operators
- Assignment operators
- Comparison operators
- Logical operators
- Identity operators
- Membership operators
- Bitwise operators
Python Arithmetic
OperatorsArithmetic operators are used with numeric values to perform common mathematical operations:
| Operator | Name | Example | Try it |
|---|
| +
| Addition
| x + y
| Try it »
| | -
| Subtraction
| x - y
| Try it »
| | *
| Multiplication
| x * y
| Try it »
| | /
| Division
| x / y
| Try it »
| | %
| Modulus
| x % y
| Try it »
| | **
| Exponentiation
| x ** y
| Try it »
| | //
| Floor division
| x // y
| Try it »
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Python Assignment OperatorsAssignment operators are used to assign values to variables:
| Operator | Example | Same As | Try it |
|---|
| =
| x = 5
| x = 5
| Try it »
| | +=
| x += 3
| x = x + 3
| Try it »
| | -=
| x -= 3
| x = x - 3
| Try it »
| | *=
| x *= 3
| x = x * 3
| Try it »
| | /=
| x /= 3
| x = x / 3
| Try it »
| | %=
| x %= 3
| x = x % 3
| Try it »
| | //=
| x //= 3
| x = x // 3
| Try it »
| | **=
| x **= 3
| x = x ** 3
| Try it »
| | &=
| x &= 3
| x = x & 3
| Try it »
| | |=
| x |= 3
| x = x | 3
| Try it »
| | ^=
| x ^= 3
| x = x ^ 3
| Try it »
| | >>=
| x >>= 3
| x = x >> 3
| Try it »
| | <<=
| x <<= 3
| x = x << 3
| Try it »
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Python Comparison OperatorsComparison operators are used to compare two values:
| Operator | Name | Example | Try it |
|---|
| ==
| Equal
| x == y
| Try it »
| | !=
| Not equal
| x != y
| Try it »
| | >
| Greater than
| x > y
| Try it »
| | <
| Less than
| x < y
| Try it »
| | >=
| Greater than or equal to
| x >= y
| Try it »
| | <=
| Less than or equal to
| x <= y
| Try it »
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Python Logical OperatorsLogical operators are used to combine conditional statements:
| Operator | Description | Example | Try it |
|---|
| and
| Returns True if both statements are true
| x < 5 and x < 10
| Try it »
| | or
| Returns True if one of the statements is true
| x < 5 or x < 4
| Try it »
| | not
| Reverse the result, returns False if the result is true
| not(x < 5 and x < 10)
| Try it »
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Python Identity OperatorsIdentity operators are used to compare the objects, not if they are equal, but if they are actually the same object, with the same memory location:
| Operator | Description | Example | Try it |
|---|
| is
| Returns True if both variables are the same object
| x is y
| Try it »
| | is not
| Returns True if both variables are not the same object
| x is not y
| Try it »
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Python Membership OperatorsMembership operators are used to test if a sequence is presented in an object:
| Operator | Description | Example | Try it |
|---|
| in
| Returns True if a sequence with the specified value is present in the object
| x in y
| Try it »
| | not in
| Returns True if a sequence with the specified value is not present in the
object
| x not in y
| Try it »
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Python Bitwise OperatorsBitwise operators are used to compare (binary) numbers:
| Operator | Name | Description |
|---|
| &
| AND
| Sets each bit to 1 if both bits are 1
| | |
| OR
| Sets each bit to 1 if one of two bits is 1
| | ^
| XOR
| Sets each bit to 1 if only one of two bits is 1
| | ~
| NOT
| Inverts all the bits
| | <<
| Zero fill left shift
| Shift left by pushing zeros in from the right and let the leftmost bits fall
off
| | >>
| Signed right shift
| Shift right by pushing copies of the leftmost bit in from the left, and let the rightmost bits fall off
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Test Yourself With Exercises
What is the name of != operator?
The not-equal-to operator ( != ) returns true if the operands don't have the same value; otherwise, it returns false .
What is == and != In Python?
Variables with the same value are often stored at separate memory addresses. This means that you should use == and != to compare their values and use the Python is and is not operators only when you want to check whether two variables point to the same memory address.
Can we use != In Python?
You can use "!= " and "is not" for not equal operation in Python. The python != ( not equal operator ) return True, if the values of the two Python operands given on each side of the operator are not equal, otherwise false .
What does a != B mean in Python?
!= If values of two operands are not equal, then condition becomes true. (a != b) is true.
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