[PyQt] Strange shadowing of hex() function by PyQt4.QtCore

[İsmail Dönmez]

On Fri, Aug 8, 2008 at 10:02, Mark Summerfield <mark at qtrac.eu> wrote:
> On 2008-08-08, Boris Barbour wrote:
>> Hi,
>>
>> Importing PyQt4.QtCore seems to alter or shadow the builtin hex()
>> function. I'm afraid I haven't tracked things down further - I just
>> learnt the hard way to "import" instead of "from import *". However,
>> I'm not sure the clash is intended, so I'm reporting it.
>>
>> Best regards,
>>
>> Boris
> [snip]
>
> It is unfortunate that doing * imports on PyQt4 brings in some objects
> which don't begin with q or Q. Here's a solution for hex shown as an
> IDLE session:
>
>    >>> hex(123)
>    '0x7b'
>    >>> from PyQt4.QtCore import *
>    >>> hex(123)
>
>    Traceback (most recent call last):
>    File "<pyshell#3>", line 1, in <module>
>        hex(123)
>    TypeError: argument 1 of hex() has an invalid type
>    >>> __builtins__.hex(123)
>    '0x7b'
>    >>> # restore built-in hex
>    >>> hex = __builtins__.hex
>    >>> hex(123)
>    '0x7b'

This also bite me many times when I was doing a fast hack using from
PyQt4.QtCore import *. Shadowing stdlib functions is evil.

Regards,
ismail

-- 
Programmer Excuse #11: I figured I didn't need to test because it was
obviously correct.