ProcessLookupError — Easy Examples

Raised when a process specified by PID doesn't exist

EasyIntermediateAdvancedExpert

Triggering ProcessLookupError

How ProcessLookupError is raised and how to catch it.

python
# Triggering and catching ProcessLookupError
try:
    raise ProcessLookupError("process not found")
except ProcessLookupError as e:
    print(f"Caught ProcessLookupError: {e}")
    print(f"Type: {type(e).__name__}")

ProcessLookupError is raised when raised when a process specified by pid doesn't exist. Always catch specific exceptions rather than bare except clauses.

Handling ProcessLookupError

Basic error handling pattern for ProcessLookupError.

python
# Safe handling pattern
def safe_operation():
    try:
        raise ProcessLookupError("process not found")
    except ProcessLookupError:
        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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