Changing a traceback message without a 2nd raise

Changing a traceback message without a 2nd raise - Printable Version

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Changing a traceback message without a 2nd raise - Clunk_Head - Jul-13-2019

1/0

Error:Traceback (most recent call last):
  File "C:/Documents/err.py", line 9, in <module>
    1/0
ZeroDivisionError: division by zero

I want to change exactly one thing about this stack trace, that message that follows the colon.
I do not want to raise a 2nd Error because I need to preserve the ability to click back through in the shell.

I've tried capturing it:

try:
    1/0
except ZeroDivisionError:
    raise ZeroDivisionError("Don't do that")

But this makes the traceback too complex and the last click back is to the raise, not the actual error.

Error:Traceback (most recent call last):
  File "C:/Documents/err.py", line 10, in <module>
    1/0
ZeroDivisionError: division by zero

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:/Documents/err.py", line 12, in <module>
    raise ZeroDivisionError("Don't do that")
ZeroDivisionError: Don't do that

I imagine the answer is in the traceback module but I cannot find it.

What I want is:

Error:Traceback (most recent call last):
  File "C:/Documents/err.py", line 9, in <module>
    1/0
ZeroDivisionError: Don't do that

RE: Changing a traceback message without a 2nd raise - Gribouillis - Jul-14-2019

Try

try:
    1/0
except ZeroDivisionError as err:
    err.args = ("Don't do that",)
    raise