Last modified: Sep 10, 2026

How to Type OR in Python

In Python, the OR operator is used to combine multiple conditions. It returns True if at least one condition is true. This article explains how to type and use OR in Python effectively.

Python provides two ways to write the OR operator:

or (lowercase keyword)
| (pipe symbol for bitwise OR)

The choice depends on your use case. For logical comparisons, use or. For bitwise operations, use |.

Using the OR Keyword

The or keyword is the standard way to perform logical OR operations in Python. It evaluates to True if either operand is true.


# Example: Using 'or' for logical comparison
a = 5
b = 10
result = a > 10 or b > 5
print(result)  # Output: True


True

In this example, even though the first condition (a > 10) is false, the second condition (b > 5) is true. So the overall result is True.

OR with Strings

You can also use or with strings. In Python, empty strings are considered False, while non-empty strings are True.


# Example: Using 'or' with strings
text = ""
default = "Hello World"
result = text or default
print(result)


Hello World

Since text is an empty string (falsy), the expression returns the value of default.

Using the Pipe Symbol (|)

The pipe symbol (|) performs bitwise OR operations. It compares the binary representations of integers.


# Example: Using '|' for bitwise OR
x = 5    # Binary: 0101
y = 3    # Binary: 0011
result = x | y
print(result)  # Output: 7 (Binary: 0111)

Bitwise OR compares each bit. If either bit is 1, the result bit is 1.

Short-Circuit Evaluation

Python uses short-circuit evaluation with or. It stops evaluating as soon as it finds a true value.


# Example: Short-circuit evaluation
def check_true():
    print("Checking...")
    return True

def check_false():
    print("Not checking...")
    return False

result = check_false() or check_true()
print(result)


Not checking...
Checking...
True

Since check_false() returns False, Python evaluates check_true(). If the first function returned True, the second would not be called.

Common Use Cases

Conditional Statements

Use or in if statements to check multiple conditions.


# Example: Using 'or' in if statement
day = "Saturday"

if day == "Saturday" or day == "Sunday":
    print("It's the weekend!")
else:
    print("It's a weekday.")


It's the weekend!

Default Values

Use or to assign default values when variables are empty or undefined.


# Example: Default values with 'or'
name = ""
greeting = "Hello, " + (name or "Guest")
print(greeting)


Hello, Guest

This is useful when dealing with user input or optional parameters.

Operator Precedence

Understanding precedence helps avoid bugs. In Python, or has lower precedence than and.


# Example: Operator precedence
a = True
b = False
c = True

result = a or b and c
print(result)  # Output: True


True

This evaluates as a or (b and c). Use parentheses for clarity.

Chaining Multiple OR Conditions

You can chain multiple or operators for complex conditions.


# Example: Chaining OR conditions
status = "pending"

if status == "approved" or status == "pending" or status == "review":
    print("Processing request...")
else:
    print("Invalid status.")


Processing request...

Best Practices

Use or for logical comparisons, not |
Use parentheses to make complex expressions clearer
Remember that or returns the actual value, not just True or False
Consider performance impact of short-circuit evaluation

Conclusion

The or operator is essential for writing flexible Python code. Whether you're checking conditions or setting defaults, understanding how to use OR properly will make your programs more robust. Practice with different scenarios to master this fundamental concept.