traverseda
/
cpython
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

bpo-23915: update and elucidate documentation of with_traceback (GH-23680)

This commit is contained in:
Irit Katriel 2020-12-16 16:03:32 +00:00 committed by GitHub
parent fc3dca3e16
commit c590c2338e
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 7 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
Doc/library/exceptions.rst
View File

@ -90,8 +90,13 @@ The following exceptions are used mostly as base classes for other exceptions.
.. method:: with_traceback(tb)
This method sets *tb* as the new traceback for the exception and returns
the exception object. It is usually used in exception handling code like
this::
the exception object. It was more commonly used before the exception
chaining features of :pep:`3134` became available. The following example
shows how we can convert an instance of ``SomeException`` into an
instance of ``OtherException`` while preserving the traceback. Once
raised, the current frame is pushed onto the traceback of the
``OtherException``, as would have happened to the traceback of the
original ``SomeException`` had we allowed it to propagate to the caller.
try:
...