I have a problem with my code in the try block.
To make it easy this is my code:
try:
code a
code b #if b fails, it should ignore, and go to c.
code c #if c fails, go to d
code d
except:
pass
Is something like this possible?
….
I am using BeautifulSoup and parsing some HTMLs.
I’m getting a certain data from each HTML (using for loop) and adding that data to a certain list.
The problem is, some of the HTMLs have different format (and they don’t have the data that I want in them).
So, I was trying to use exception handling and add value null to the list (I should do this s….
Should I test if something is valid or just try to do it and catch the exception?
Is there any solid documentation saying that one way is preferred?
Is one way more pythonic?
For example, should I:
if len(my_list) >= 4:
x = my_list[3]
else:
x = ‘NO_ABC’
Or:
try:
x = my_list[3]
except IndexError:
x = ‘NO_ABC’
Some thoughts…
P….
Given an Exception object (of unknown origin) is there way to obtain its traceback? I have code like this:
def stuff():
try:
…..
return useful
except Exception as e:
return e
result = stuff()
if isinstance(result, Exception):
result.traceback <-- How?
How can I extract the traceback from the Exception object once....
What is the best way to get exceptions’ messages from components of standard library in Python?
I noticed that in some cases you can get it via message field like this:
try:
pass
except Exception as ex:
print(ex.message)
but in some cases (for example, in case of socket errors) you have to do something like this:
try:
pass
except socket.err….
For any possible try-finally block in Python, is it guaranteed that the finally block will always be executed?
For example, let’s say I return while in an except block:
try:
1/0
except ZeroDivisionError:
return
finally:
print(“Does this code run?”)
Or maybe I re-raise an Exception:
try:
1/0
except ZeroDivisionError:
raise
fina….
A third-party library (written in C) that I use in my python code is issuing warnings. I want to be able to use the try except syntax to properly handle these warnings. Is there a way to do this?
….
I’m writing a module and want to have a unified exception hierarchy for the exceptions that it can raise (e.g. inheriting from a FooError abstract class for all the foo module’s specific exceptions). This allows users of the module to catch those particular exceptions and handle them distinctly, if needed. But many of the exceptions raised from th….
How do you cause uncaught exceptions to output via the logging module rather than to stderr?
I realize the best way to do this would be:
try:
raise Exception, ‘Throwing a boring exception’
except Exception, e:
logging.exception(e)
But my situation is such that it would be really nice if logging.exception(…) were invoked automatically wh….
In Python, is it possible to have multiple except statements for one try statement? Such as :
try:
#something1
#something2
except ExceptionType1:
#return xyz
except ExceptionType2:
#return abc
….