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How to handle all but one exception?
try:
something
except <any Exception except for a NoChildException>:
# handling
Something like this, except without destroying the original traceback:
try:
something
except NoChildException:
raise NoChildException
except Exception:
# handling
214
You can also handle multiple exceptions using a single except clause by passing these exceptions to the clause as a tuple . except (ZeroDivisionError, ValueError, TypeError): print ( "Something has gone wrong.." ) Finally, you can also leave out the name of the exception after the except keyword.
The try-catch is the simplest method of handling exceptions. Put the code you want to run in the try block, and any Java exceptions that the code throws are caught by one or more catch blocks. This method will catch any type of Java exceptions that get thrown. This is the simplest mechanism for handling exceptions.
🔹 Multiple Except ClausesA try statement may have more than one except clause, to specify handlers for different exceptions. At most one handler will be executed.
Python Multiple Exception in one ExceptYou can also have one except block handle multiple exceptions. To do this, use parentheses. Without that, the interpreter will return a syntax error.
The answer is to simply do a bare raise:
try:
...
except NoChildException:
# optionally, do some stuff here and then ...
raise
except Exception:
# handling
This will re-raise the last thrown exception, with original stack trace intact (even if it's been handled!).
99
New to Python ... but is not this a viable answer? I use it and apparently works.... and is linear.
try:
something
except NoChildException:
assert True
except Exception:
# handling
E.g., I use this to get rid of (in certain situation useless) return exception FileExistsError from os.mkdir.
That is my code is:
try:
os.mkdir(dbFileDir, mode=0o700)
except FileExistsError:
assert True
and I simply accept as an abort to execution the fact that the dir is not somehow accessible.
2
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