Is it possible to pass CSV Reader Object As Argument to another Python File ???

[Benjamin Kaplan]

On Fri, Jan 28, 2011 at 3:42 PM, bansi <mail2bansi at gmail.com> wrote:
> On Jan 28, 1:52 pm, Benjamin Kaplan <benjamin.kap... at case.edu> wrote:
>> On Fri, Jan 28, 2011 at 1:33 PM, bansi <mail2ba... at gmail.com> wrote:
>> > On Jan 28, 9:46 am, bansi <mail2ba... at gmail.com> wrote:
>> >> On Jan 26, 8:31 pm, MRAB <pyt... at mrabarnett.plus.com> wrote:
>>
>> >> > On 27/01/2011 00:57, bansi wrote:
>>
>> >> > > On Jan 26, 6:25 pm, Ethan Furman<et... at stoneleaf.us>  wrote:
>> >> > >> bansi wrote:
>>
>> >> > >>   >  First namelookupWrapper.py running under Python 2.6 accept arguments
>> >> > >>   >  from stdin and uses csv reader object to read it i.e.
>> >> > >>   >  r=csv.reader(sys.stdin)
>>
>> >> > >>   >  And then it has to pass csv reader object to another python script
>> >> > >>   >  namelookup.py running under Python 2.7 because it uses pyodbc to
>> >> > >>   >  connect to database and iterates thru reader object
>>
>> >> > >> Ben Finney wrote:
>> >> > >>> bansi<mail2ba... at gmail.com>  writes:
>>
>> >> > >>>> Thanks Chris. Sorry for mis-communicating, the two python scripts are
>> >> > >>>> dependant in a way that namelookupWrapper.py needs to pass csv record
>> >> > >>>> object to another python script
>>
>> >> > >>> Why have you structured them that way, though? What constraint is
>> >> > >>> keeping you from doing the work in a single process, where the CSV
>> >> > >>> reader object can be shared?
>>
>> >> > >>>> If thats not possible then please let me know how to do the workaround
>> >> > >>>> i didnt understood the import thing and not sure if it helps in my
>> >> > >>>> case
>>
>> >> > >>> The problem as you've described it so far is best solved by having a
>> >> > >>> single process accessing the CSV reader object in memory. If that
>> >> > >>> doesn't suit your use case, you'll need to explain why not.
>>
>> >> > >> In other words, why can't you use Python 2.7 to accept input and
>> >> > >> generate a csv.reader?
>>
>> >> > >> ~Ethan~- Hide quoted text -
>>
>> >> > >> - Show quoted text -
>>
>> >> > > Ethan,
>> >> > > The python script takes the input from Splunk (http://www.splunk.com/
>> >> > > base/Documentation/) which supports only Python 2.6
>> >> > > So the real constraint is Splunk supports only Python 2.6 .
>>
>> >> > > As you know Python 2.6 doesnt support or doesnt have pyodbc install
>> >> > > for Windows  64 bit OS
>> >> > > So i installed Python 2.7 and thereafter pyodbc install for Windows 64
>> >> > > bit OS for Python 2.7
>>
>> >> > Have you actually tried Splunk with Python 2.7? It might not work with
>> >> > versions which are earlier than Python 2.6, but that doesn't
>> >> > necessarily mean that it won't work with versions of Python 2 which are
>> >> > later than Python 2.6 (unless the documentation says that it must be
>> >> > Python 2.6).- Hide quoted text -
>>
>> >> > - Show quoted text -
>>
>> >> Splunk's latest version 4.1.6 doesn't support Python 2.7
>> >> I tried the import trick but it didnt work because the real script
>> >> which runs under Python 2.7 has import pyodbc so it results in
>> >> following error
>>
>> >> c:\Splunk\etc\apps\search\bin>splunk cmd python namelookupWrapper.py
>> >> memberId memberName < memberInput.csv
>> >> Traceback (most recent call last):
>> >>   File "namelookupWrapper.py", line 3, in <module>
>> >>     import namelookup
>> >>   File "c:\Splunk\etc\apps\search\bin\namelookup.py", line 7, in
>> >> <module>
>> >>     import pyodbc
>> >> ImportError: DLL load failed: The specified module could not be found.
>>
>> >> Please let me know if i am missing something on import. If so please
>> >> provide me with an example- Hide quoted text -
>>
>> >> - Show quoted text -
>>
>> > Here are some more details from my earlier posting. Please click the
>> > below link
>>
>> >http://answers.splunk.com/questions/11145/its-getting-mysterious-to-m...
>> > --
>> >http://mail.python.org/mailman/listinfo/python-list
>>
>> Have you tried downloading the source for PyODBC and compiling it
>> yourself? All you need to do is python setup.py install. My guess
>> would be that it works just fine on 64-bit Python 2.6, they just never
>> released a re-compiled version of it for that platform.- Hide quoted text -
>>
>> - Show quoted text -
>
> Thanks Benjamin. Please point me to the website from where i can
> download pyodbc for Windows 64 bit OS under Python 2.6 and
> installation instructions
> --

You don't download it for 64-bit Windows with Python 2.6. You download
the source code from the website and make the Python 2.6, 64-bit
Windows version yourself.

Download the source zip file and extract it. Then, open up the command
prompt and use the "cd" command to change directories to that source
folder. For instance, if the source code has been extracted to
C:\pyodbc-2.1.8\, you type in "cd C:\pyodbc-2.1.8" and press enter.

After that, you just run the build script which is already in there:

C:\Python26\python26.exe setup.py install

You'll need to have Visual C++ 2008 (not 2010) installed for this to
work. You can get it for free from
http://www.microsoft.com/express/Downloads/ if you don't already have
it.


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