Python logical operators w3schools list

Peggy 86 Published: 06/24/2024

Python logical operators w3schools list

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Here is the list of Python logical operators from W3Schools:

Logical Operators

Python supports several logical operators, which are used to combine boolean expressions and make decisions based on conditions.

and: This operator returns True if both operands are True.

Example: a = 5; b = 7; print(a > 4 and b > 6)

Output: True

or: This operator returns True if at least one of the operands is True.

Example: a = 3; b = 8; print(a < 10 or b > 5)

Output: True

not: This operator returns False if the operand is True, and vice versa.

Example: x = 1; print(not x == 0)

Output: True

in: This operator checks if a value exists in an iterable (like list, tuple, or dictionary).

Example: fruits = ['apple', 'banana']; print('banana' in fruits)

Output: True

not in: This operator is the opposite of in. It checks if a value does not exist in an iterable.

Example: fruits = ['apple', 'banana']; print('grape' not in fruits)

Output: True

is and is not: These operators check for object identity (i.e., whether the two operands point to the same memory address).

Example: x = [1, 2, 3]; y = x; print(x is y)

Output: True (because x and y reference the same list)

is not and is: These operators are the opposites of is not and is.

Example: x = [1, 2, 3]; y = 5; print(x is not y)

Output: True (because x and y do not reference the same list)

Tips

The order of operations matters! When combining logical operators, Python evaluates them from left to right. Make sure you're using parentheses to group your expressions correctly! Don't be afraid to test out these operators in a code editor or IDE!

I hope this helps you master Python's logical operators!

What are operators in Python W3schools?

I'm happy to respond in English!

According to W3Schools, in Python, an operator is a symbol used to perform operations on values and expressions. In other words, operators are used to manipulate data and variables in your code.

Python provides various types of operators, including:

Arithmetic Operators: These operators are used for mathematical calculations, such as addition (+), subtraction (-), multiplication (*), division (/ or // for integer division), modulus (%), exponentiation (**).

Example: x = 5; y = 3; print(x + y) (output: 8)

Comparison Operators: These operators are used to compare values and return a boolean result, such as equal (==), not equal (!= or !=), greater than (>), less than (<), greater than or equal to (>=), less than or equal to (<=), and identical (is or ==).

Example: x = 5; y = 3; print(x > y) (output: True)

Logical Operators: These operators are used to combine multiple conditions and return a boolean result, such as AND (&), OR (|), NOT (~ or not).

Example: x = 5; y = 3; print(x > y and x != 0) (output: False)

Assignment Operators: These operators are used to assign values to variables, such as addition assignment (+=), subtraction assignment (-=), multiplication assignment (*=), division assignment (/= or //= for integer division), modulus assignment (%=).

Example: x = 5; x += 3; print(x) (output: 8)

Bitwise Operators: These operators are used to manipulate binary numbers, such as bitwise AND (&), OR (|), XOR (^), NOT (~ or not), left shift (<<), and right shift (>>).

Example: x = 5; y = 3; print(x & y) (output: 1)

Membership Operators: These operators are used to test if a value is present in a sequence, such as in (in) or not in (not in).

Example: fruits = ['apple', 'banana']; print('apple' in fruits) (output: True)

Identity Operators: These operators are used to compare the memory address of two values, such as is (is) and is not (is not or !=).

Example: x = 5; y = 3; print(x is y) (output: False)

Power Operator: This operator is used to calculate the power of a number, denoted by two asterisks (**).

Example: print(2 ** 3) (output: 8)

In Python, these operators can be used in various combinations to create complex expressions and calculations. For example, you can use parentheses to group operations or use the precedence rules for each operator type.

Overall, understanding the different types of operators in Python is crucial for writing efficient, readable, and effective code!