Question

我想测试我的PyVISA安装并遇到一定的失败：

>>> import visa
>>> rm = visa.ResourceManager()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "C:\Program Files\Python35\lib\site-packages\pyvisa\highlevel.py", line 1
488, in __new__
visa_library = open_visa_library(visa_library)
File "C:\Program Files\Python35\lib\site-packages\pyvisa\highlevel.py", line 1
460, in open_visa_library
return cls(argument)
File "C:\Program Files\Python35\lib\site-packages\pyvisa\highlevel.py", line 9
6, in __new__
raise OSError('Could not open VISA library:\n' + '\n'.join(errs))
OSError: Could not open VISA library:

>>>

可能是我的问题？

我试图更新VISA路径：

>>> rm = ResourceManager('C:\Program Files\Python35\Lib\site-packages')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
NameError: name 'ResourceManager' is not defined
>>> visalib = VisaLibrary('C:\Program Files\Python35\Lib\site-packages')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
NameError: name 'VisaLibrary' is not defined
>>> rm = ResourceManager('C:/Program Files/Python35/Lib/site-packages')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
NameError: name 'ResourceManager' is not defined
>>> import visa
>>> rm = ResourceManager('C:\Program Files\Python35\Lib\site-packages')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
NameError: name 'ResourceManager' is not defined
>>>

没有任何成功

Answer 1

PyVISA只是DLL的Python包装器，标准位置在Windows中的某个位置。例如，我的电脑是C:\Windows\System32\visa64.dll。

在我的代码中，我使用rm = visa.ResourceManager(C:\\Windows\\System32\\visa64.dll)

当然，您第一次必须获得VISA库，这是您可以在此处找到的大型NI-VISA安装包的一部分： NI-VISA Download Installer

这是PyVISA安装失败吗？或者，我做错了什么？

1 个答案: