Introduction
Example
The following example asks the user for input until a valid integer has been entered.
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| language | java |
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| title | Strings in Java |
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| language | py |
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| title | Exception handling in Python |
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| while True:
try:
x = int(input("Please enter a number: "))
break
except ValueError:
print("Oops! That was no valid number. Try again...") |
| The try statement in Python works as follows. - First, the try clause (the statement(s) between the
try and except keywords) is executed. - If no exception occurs, the except clause is skipped and execution of the
try statement is finished. - If an exception occurs during execution of the try clause, the rest of the clause is skipped. Then if its type matches the exception named after the
except keyword, the except clause is executed, and then execution continues after the try statement. - If an exception occurs which does not match the exception named in the except clause, it is passed on to outer
try statements; if no handler is found, it is an unhandled exception and execution stops with a message as shown above.
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| Strings in Python | |
