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09_09.py
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# Section 9.9 snippets
# The finally Clause of the try Statement
# Example
try:
print('try suite with no exceptions raised')
except:
print('this will not execute')
else:
print('else executes because no exceptions in the try suite')
finally:
print('finally always executes')
try:
print('try suite that raises an exception')
int('hello')
print('this will not execute')
except ValueError:
print('a ValueError occurred')
else:
print('else will not execute because an exception occurred')
finally:
print('finally always executes')
# Combining with Statements and try…except Statements
open('gradez.txt')
try:
with open('gradez.txt', 'r') as accounts:
print(f'{"ID":<3}{"Name":<7}{"Grade"}')
for record in accounts:
student_id, name, grade = record.split()
print(f'{student_id:<3}{name:<7}{grade}')
except FileNotFoundError:
print('The file name you specified does not exist')
##########################################################################
# (C) Copyright 2019 by Deitel & Associates, Inc. and #
# Pearson Education, Inc. All Rights Reserved. #
# #
# DISCLAIMER: The authors and publisher of this book have used their #
# best efforts in preparing the book. These efforts include the #
# development, research, and testing of the theories and programs #
# to determine their effectiveness. The authors and publisher make #
# no warranty of any kind, expressed or implied, with regard to these #
# programs or to the documentation contained in these books. The authors #
# and publisher shall not be liable in any event for incidental or #
# consequential damages in connection with, or arising out of, the #
# furnishing, performance, or use of these programs. #
##########################################################################