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Created on 2021-01-01 05:16 by steven.daprano, last changed 2022-04-11 14:59 by admin. This issue is now closed.
| Messages (3) | |||
|---|---|---|---|
| msg384150 - (view) | Author: Steven D'Aprano (steven.daprano) *  |
Date: 2021-01-01 05:16 | |
This function crashes on the following recursive list:
def length(x):
try:
return sum(length(i) for i in x)
except Exception:
return 1
a = [[1, 2, 3], [4, 5, 6]]
a.append(a)
length(a)
Crashes:
Fatal Python error: _Py_CheckRecursiveCall: Cannot recover from stack overflow.
Python runtime state: initialized
Current thread 0x00007eff18d77740 (most recent call first):
File "<stdin>", line 3 in length
File "<stdin>", line 3 in <genexpr>
File "<stdin>", line 3 in length
File "<stdin>", line 3 in <genexpr>
...
Aborted (core dumped)
For brevity I've cut some of the output. There are about fifty pairs of "line 3 in length"/line 3 in <genexpr>" lines, all identical.
|
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| msg384162 - (view) | Author: Dong-hee Na (corona10) * |
Date: 2021-01-01 11:37 | |
FYI,I am able to reproduce on Python 3.9 The master version is not able to reproduce. |
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| msg384174 - (view) | Author: Steve Stagg (stestagg) | Date: 2021-01-01 14:30 | |
This is fixed by https://github.com/python/cpython/pull/23744 |
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| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022-04-11 14:59:39 | admin | set | github: 86967 |
| 2021-06-09 23:56:47 | corona10 | set | status: open -> closed stage: resolved resolution: fixed versions: + Python 3.8, Python 3.10, - Python 3.7 |
| 2021-01-01 14:30:26 | stestagg | set | nosy:
+ stestagg messages: + msg384174 |
| 2021-01-01 11:37:21 | corona10 | set | nosy:
+ corona10 messages: + msg384162 |
| 2021-01-01 05:16:27 | steven.daprano | create | |