Author lemburg
Recipients amaury.forgeotdarc, belopolsky, brett.cannon, brian.curtin, daniel.urban, lemburg, pitrou, r.david.murray, techtonik, vstinner
Date 2010-06-17.15:03:31
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Message-id <4C1A3941.2080100@egenix.com>
In-reply-to <1276786156.3.0.931625302259.issue7989@psf.upfronthosting.co.za>
Content
Alexander Belopolsky wrote:
> 
> Alexander Belopolsky <belopolsky@users.sourceforge.net> added the comment:
> 
>> To avoid the wasted memory and import time, it's better to use:
>>
>> try:
>>    from _cmodule import *
>> except ImportError:
>>    from _pymodule import *
>>
> 
> .. also this makes it harder to prototype things in Python or have mixed Python/C modules.  The goal is to use Python implementation unless native implementation exists on per function/class basis.  The syntax above makes it all or nothing.

Why ?

You can have the Python parts that are used by both implementation
defined in the datetime.py module.

Alternatively, you could write:

try:
    # Use the faster C version
    from _module import *
except ImportError:
    # Use Python
    class datetime:
        ...

I find that rather ugly, though.
History
Date User Action Args
2010-06-17 15:03:33lemburgsetrecipients: + lemburg, brett.cannon, amaury.forgeotdarc, belopolsky, pitrou, vstinner, techtonik, r.david.murray, brian.curtin, daniel.urban
2010-06-17 15:03:31lemburglinkissue7989 messages
2010-06-17 15:03:31lemburgcreate