Terry J. Reedy <[email protected]> added the comment:
As is true for most special methods, it is a bug for __repr__ methods to raise.
They should return a string, as documented.
Special method wrappers generally assume that the wrapped methods work. In
particular, repr assumes this, and so do the __repr__ methods of all
collections classes. They do not try to hide bugs. Example:
>>> class BadRep:
def __repr__(self): 1/0
>>> br = BadRep()
>>> [br]
Traceback (most recent call last):
File "<pyshell#8>", line 1, in <module>
[br]
File "C:\Programs\Python39\lib\idlelib\rpc.py", line 620, in displayhook
text = repr(value)
File "<pyshell#6>", line 2, in __repr__
def __repr__(self): 1/0
ZeroDivisionError: division by zero
Bugs should be reported, not masked. I don't think that FrameSummary should be
an exception to this. Therefore I think that this issue should be closed
(along with the PR) as 'not a bug'.
----------
nosy: +terry.reedy
versions: -Python 3.5, Python 3.6
_______________________________________
Python tracker <[email protected]>
<https://bugs.python.org/issue39228>
_______________________________________
_______________________________________________
Python-bugs-list mailing list
Unsubscribe:
https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
