[Zope] Need Help--urgently

[cpdm cadlab]

On Thu, 07 Sep 2006 David H wrote :
>Martijn Pieters wrote:
>
>>cpdm cadlab wrote:
>>  
>>>  thanks for the quick reply. I am glad to be here on active ZOPE
>>>mailing list.
>>>    
>>
>>Let's keep it on the list then; no personal email please.
>>
>>  
>>>  I had initially done the way you have suggested, but it doesn't work
>>>in the sense I get a empty list as output, which I know isn't empty.
>>>    
>>
>>Then something is wrong with the external method. Use a debugger (pdb,
>>Wing, Komodo, etc.) or spurious logging (import logger;
>>logger.getLogger('yourmodule').log) to trace your code.
>>
>>  
>>>This made me think that I was making silly mistake. If I run external
>>>method in python shell it shows the mlist, which is non-empty, but if I
>>>ask the same to python script to do what it prints is this : []
>>>  What do you think is wrong. A further code goes like this:
>>>mlist = context.code(uparam)
>>>if len(mlist) == str(0):
>>>    print "Sorry no suitable method found in database"
>>>    return printed
>>>else:
>>>    print mlist
>>>    return printed
>>>    
>>
>>Use "if not len(mlist):"; comparing the length to str(0) is always
>>false. "len" returns an integer, not a string, so 0 == '0' will never be
>>True.
>>
>>You can also call the external method directly if you encode the
>>arguments passed to it in the query string. Just open up a python
>>propmt, import urllib and call urllib.quote on your argument list to
>>hand-construct a URL.
>>
>>Moreover, get decent books on Python and on Web programming in general.
>>
>>Martijn Pieters
>>  
>Martijn,
>
>I wonder which books would recommend?  Best I can say is that books just about HTTP are probably the least appreciated and often the most useful.
>
>David
>
Well sure it takes time to acquire etiquette for newcomer. I am stuck but hopefully will solve it out. thanks a lot to both of you.

m.d.
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