DeprecationWarning — Easy Examples

Warning about features to be removed in future versions

EasyIntermediateAdvancedExpert

Triggering DeprecationWarning

How DeprecationWarning is raised and how to catch it.

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

DeprecationWarning is raised when warning about features to be removed in future versions. Always catch specific exceptions rather than bare except clauses.

Handling DeprecationWarning

Basic error handling pattern for DeprecationWarning.

python
# Safe handling pattern
def safe_operation():
    try:
        import warnings; warnings.warn("deprecated", DeprecationWarning)
    except DeprecationWarning:
        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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