关于NI环境变量路径的问题 about qulab

[feihoo87]

直接用 pyvisa 时出错吗？

[Lagikna]

OSError                                   Traceback (most recent call last)
<ipython-input-29-55d91e4424a2> in <module>()
      1 import visa
----> 2 rm = visa.ResourceManager()
      3 rm.list_resources()

b:\winpython-64bit-3.6.3.0qt5\python-3.6.3.amd64\lib\site-packages\pyvisa\highlevel.py in __new__(cls, visa_library)
   1497     def __new__(cls, visa_library=''):
   1498         if not isinstance(visa_library, VisaLibraryBase):
-> 1499             visa_library = open_visa_library(visa_library)
   1500 
   1501         if visa_library.resource_manager is not None:

b:\winpython-64bit-3.6.3.0qt5\python-3.6.3.amd64\lib\site-packages\pyvisa\highlevel.py in open_visa_library(specification)
   1469 
   1470     try:
-> 1471         return cls(argument)
   1472     except Exception as e:
   1473         logger.debug('Could not open VISA wrapper %s: %s\n%s', cls, str(argument), e)

b:\winpython-64bit-3.6.3.0qt5\python-3.6.3.amd64\lib\site-packages\pyvisa\highlevel.py in __new__(cls, library_path)
     95                     errs.append(str(e))
     96             else:
---> 97                 raise OSError('Could not open VISA library:\n' + '\n'.join(errs))
     98 
     99         if (cls, library_path) in cls._registry:

OSError: Could not open VISA library:

[Lagikna]

打开Visa错误

[feihoo87]

我这边的环境变量，你参考一下

NIEXTCCOMPILERSUPP=C:\Program Files (x86)\National Instruments\Shared\ExternalCompilerSupport\C\
Path=C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\Program Files (x86)\ATI Technologies\ATI.ACE\Core-Static;C:\Program Files (x86)\IVI Foundation\VISA\WinNT\Bin\;C:\Program Files\IVI Foundation\VISA\Win64\Bin\;C:\Program Files (x86)\IVI Foundation\VISA\WinNT\Bin;C:\Program Files (x86)\Windows Kits\8.1\Windows Performance Toolkit\;%USERPROFILE%\AppData\Local\Microsoft\WindowsApps;
VXIPNPPATH=C:\Program Files (x86)\IVI Foundation\VISA\
VXIPNPPATH64=C:\Program Files\IVI Foundation\VISA\