pass — Intermediate Playground

A no-op placeholder; does nothing, used where syntax requires a statement

Python Playground

# Silently ignore specific errors
import os

# Try multiple operations, skip failures
operations = [
    lambda: int("42"),
    lambda: int("hello"),
    lambda: 1 / 0,
    lambda: int("99"),
]

results = []
for op in operations:
    try:
        results.append(op())
    except (ValueError, ZeroDivisionError):
        pass

print(f"Successful results: {results}")

# Abstract base pattern (before ABC)
class Shape:
    def area(self):
        raise NotImplementedError

class Circle(Shape):
    def __init__(self, r):
        self.r = r
    def area(self):
        return 3.14159 * self.r ** 2

print(Circle(5).area())

Output

Click "Run" to execute your code

pass in except blocks silently swallows exceptions. Use this sparingly — usually you should at least log the error.

Challenge

Try modifying the code above to explore different behaviors. Can you extend the example to handle a new use case?

View all Intermediate examples for pass