[python-win32] Pyvisa_GPIB problem
H. Sinan Aksimsek
sinan_aksimsek at yahoo.com
Tue Mar 2 17:01:54 CET 2010
Hi all,
I want to control the HP 438A with python, get power information and plot it over time. This is my first python project and I need just to control power meter and get information as I said before. There is no time to learn step by step the python.
I installed the phton 2.6, PyVISA-1.3.win32 and the software of the GPIB-USB controller. I started the program and wrote this script.
from visa import *
and the response I received is below.
Traceback (most recent call last):
File "<pyshell#1>", line 1, in <module>
from visa import *
File "C:\Python25\lib\site-packages\visa.py", line 1, in <module>
from pyvisa.visa import *
File "C:\Python25\Lib\site-packages\pyvisa\visa.py", line 231, in <module>
resource_manager = ResourceManager()
File "C:\Python25\Lib\site-packages\pyvisa\vpp43.py", line 105, in __new__
it.init(*args, **kwds)
File "C:\Python25\Lib\site-packages\pyvisa\visa.py", line 227, in init
self.session = self.vi = vpp43.open_default_resource_manager()
File "C:\Python25\Lib\site-packages\pyvisa\vpp43.py", line 758, in open_default_resource_manager
visa_library().viOpenDefaultRM(byref(session))
File "C:\Python25\Lib\site-packages\pyvisa\vpp43.py", line 175, in __call__
self.load_library()
File "C:\Python25\Lib\site-packages\pyvisa\vpp43.py", line 141, in load_library
self.__lib = windll.visa32
File "C:\Python25\lib\ctypes\__init__.py", line 423, in __getattr__
dll = self._dlltype(name)
File "C:\Python25\lib\ctypes\__init__.py", line 348, in __init__
self._handle = _dlopen(self._name, mode)
WindowsError: [Error 126] Das angegebene Modul wurde nicht gefunden
I wasted to much time to reach the answer of this problem over the google, you know. So, what is the problem? What do you suggest me?
Thanks a lot from now on.
Best Regards.
H.Sinan Aksimsek
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