ImportError — Expert Playground

Raised when an import statement fails to find a module

Python Playground

# Exception groups (Python 3.11+)
import sys
print(f"Python {sys.version}")

# Exception hierarchy inspection
print(f"ImportError MRO:")
for cls in ImportError.__mro__:
    print(f"  {cls.__name__}")

# Exception attributes
try:
    import nonexistent_module
except ImportError as e:
    print(f"\nException attributes:")
    print(f"  args: {e.args}")
    print(f"  __traceback__: {type(e.__traceback__)}")

    # Traceback manipulation
    import traceback
    tb_lines = traceback.format_exception(type(e), e, e.__traceback__)
    print(f"  Traceback lines: {len(tb_lines)}")

Output

Click "Run" to execute your code

Understanding the exception hierarchy and traceback system helps build robust error handling and debugging tools.

Challenge

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

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