[rrd-users] Use RRDTool On Windows With Python - Cant import rrdtool

[Mark Easton]

With the help of Alex van den Bogaerdt I now know that the problem lies with
Python25. The extension breaks under 2.5. Once I changed to Python 2.4 it
worked fine.



Mark Easton wrote:
> 
> So, I have looked at the ctypes function. Why was that not covered off in
> the instructions as posted by Miro when he created the dlls. Surely his
> code does not work or am I missing something?? So, now I have :
> 
> rom ctypes import *
> rrdtool = cdll.LoadLibrary("rrdtool.dll")
> import os
> import time
> import random
> import math
> 
> if os.path.exists('test.rrd'):
> 	os.remove('test.rrd')
> 
> start = int( time.mktime( (2006,1,1,0,0,0,0,0,-1) ) )
> end = int( time.mktime( (2006,1,3,0,0,0,0,0,-1) ) )
> 
> print 'rrdtool Python test'
> print 'time start: ',start, ' end: ',end
> 
> print 'creating rrd database ...'
> rrdtool.create( 'test.rrd', \
> 	'--start', str(start), \
> 	'DS:speed:GAUGE:60:U:U', \
> 	'RRA:AVERAGE:0.5:1:%s' % (24 * 60), \
> 	'RRA:AVERAGE:0.5:10:%s' % (32 * 24 * 6), \
> 	'RRA:MAX:0.5:1:%s' % (24 * 60), \
> 	'RRA:MAX:0.5:10:%s' % (32 * 24 * 6) )
> 
> ...
> 
> 
> 
> But I get this response:
> 
> rrdtool Python test
> time start:  1136026800  end:  1136199600
> creating rrd database ...
> Traceback (most recent call last):
>   File "E:\work\komodo\gopher\test_rrd.py", line 19, in <module>
>     rrdtool.create( 'test.rrd', \
>   File "C:\Python25\lib\ctypes\__init__.py", line 325, in __getattr__
>     func = self.__getitem__(name)
>   File "C:\Python25\lib\ctypes\__init__.py", line 330, in __getitem__
>     func = self._FuncPtr((name_or_ordinal, self))
> AttributeError: function 'create' not found
> 
> 
> So, it does not find the rrdtool funrtion "create". What must I do now?
> 

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