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Created on 2013-12-22 23:29 by VeloxAmbitum, last changed 2022-04-11 14:57 by admin. This issue is now closed.
| Files | ||||
|---|---|---|---|---|
| File name | Uploaded | Description | Edit | |
| python2.7.6 bug.py | VeloxAmbitum, 2013-12-22 23:29 | Python 2.7.6 Input Bug | ||
| Messages (2) | |||
|---|---|---|---|
| msg206835 - (view) | Author: VeloxAmbitum (VeloxAmbitum) | Date: 2013-12-22 23:29 | |
Using input(string) to read a number crashes whenever the number is "0*8*" or "0*9*" where * can be any number (i.e., "09", "08", and "0102393" all cause the code to crash).
Crash occurs on Windows 7 x64 running 32 bit Python version 2.7.6 as a Syntax Error:
----------------------------------------------------
Enter a number
>01239123
Traceback (most recent call last):
File "python2.7.6 bug", line 6, in <module>
bug()
File "python2.7.6 bug", line 2, in bug
number = input("Enter a number\n>");
File "<string>", line 1
01239123
^
SyntaxError: invalid token
----------------------------------------------------
Can be reproduced from:
def bug():
number = input("Enter a number\n>");
while True:
print("0*8* or 0*9* causes bug to appear (* is wildcard):\n");
bug()
|
|||
| msg206836 - (view) | Author: Christian Heimes (christian.heimes) *  |
Date: 2013-12-22 23:35 | |
It's nota bug, it's a feature. Python 2.x interprets numers with a 0 prefix as octal numbers. '8' and '9' are no valid tokens in octal notation. >>> 010 8 >>> 10 10 http://docs.python.org/2.7/reference/lexical_analysis.html#numeric-literals |
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| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022-04-11 14:57:55 | admin | set | github: 64251 |
| 2013-12-22 23:35:19 | christian.heimes | set | status: open -> closed nosy: + christian.heimes messages: + msg206836 resolution: not a bug stage: resolved |
| 2013-12-22 23:29:59 | VeloxAmbitum | create | |