Learn-Python/sampleexceptions.py at master · lugnitdgp/Learn-Python · GitHub

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# python sampleexceptions.py

# Minimal types of exceptions are used in this sample.
# For a list of built in python exceptions see https://docs.python.org/2/library/exceptions.html


# Expected Output:
#
# Basic exception raised.
# Basic exception with message: ERROR.
# Caught non basic exception: No module named badimport.
# Caught non basic exception: unsupported operand type(s) for +: 'int' and 'str'.
# Demonstrated how to handle multiple types of exceptions the same way.
# Demonstrated how to handle multiple types of exceptions the same way with a message: No module named badimport.
# Demonstrated how to handle exceptions differently.
# This should appear.
# Demonstrated how finally is run after exceptions.
# Demonstrated how else is run when no exceptions occur.
# Demonstrated how to use a basic custom exception: Custom Exception.


try:
raiseException
except:
print"Basic exception raised."


try:
raiseException("ERROR")
exceptExceptionase:
print"Basic exception with message: %s."%str(e)


try:
importbadimport
exceptImportErrorase:
print"Caught non basic exception: %s."%str(e)


try:
test=1+'1'
exceptTypeErrorase:
print"Caught non basic exception: %s."%str(e)


try:
importbadimport
exceptImportError, TypeError:
print"Demonstrated how to handle multiple types of exceptions the same way."


try:
importbadimport
except (ImportError, TypeError) ase:
print"Demonstrated how to handle multiple types of exceptions the same way with a message: %s."%str(e)


try:
importbadimport
exceptImportError:
print"Demonstrated how to handle exceptions differently."
exceptTypeError:
print"This should not appear."


try:
importbadimport
exceptImportError:
print"This should appear."
finally:
print"Demonstrated how finally is run after exceptions."


try:
test=1+1
except:
print"This should not appear."
else:
print"Demonstrated how else is run when no exceptions occur."


classCustomBasicError(Exception):
""" Custom Exception Type - Can be customised further """
pass


try:
raiseCustomBasicError("Custom Exception")
exceptCustomBasicErrorase:
print"Demonstrated how to use a basic custom exception: %s."%str(e)