RuntimeWarning — Easy Examples

Warning about suspicious runtime behavior

EasyIntermediateAdvancedExpert

Triggering RuntimeWarning

How RuntimeWarning is raised and how to catch it.

python
# Triggering and catching RuntimeWarning
try:
    import warnings; warnings.warn("runtime issue", RuntimeWarning)
except RuntimeWarning as e:
    print(f"Caught RuntimeWarning: {e}")
    print(f"Type: {type(e).__name__}")

RuntimeWarning is raised when warning about suspicious runtime behavior. Always catch specific exceptions rather than bare except clauses.

Handling RuntimeWarning

Basic error handling pattern for RuntimeWarning.

python
# Safe handling pattern
def safe_operation():
    try:
        import warnings; warnings.warn("runtime issue", RuntimeWarning)
    except RuntimeWarning:
        print("Operation failed gracefully")
        return None

result = safe_operation()
print(f"Result: {result}")

Wrapping risky operations in try/except blocks prevents your program from crashing.

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