Error using pyversion, Too many input arguments.

2024 2 29
2 个回答
更新时间：2024 3 1
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I want to create CoolProp in my MATLAB interface. for this, I installed Python 3.11 for window 11. After that i opened MATLAB 2023a and I typed in my MATLAB Command window: pyversion C:\Users\ASUS\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Python 3.11\python.exe
I am getting: Error using pyversion, Too many input arguments.
can anyone help me for executing the above?
thank yoy in advace for your valuable suggesion.

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回答（2 个）

Fangjun Jiang
Fangjun Jiang 2024-2-29
编辑：Fangjun Jiang 2024-2-29

0 个投票

Might be the white space in the folder name? Try
pyversion("C:\Users\ASUS\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Python 3.11\python.exe")
pyversion('C:\Users\ASUS\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Python 3.11\python.exe')
By the way, it is recommended to use pyenv
https://www.mathworks.com/help/matlab/ref/pyenv.html

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Mukesh
Mukesh 2024-3-1
Hi Fangjun Jiang,
Thank you for your comment!
By using
pyversion("C:\Users\ASUS\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Python 3.11\python.exe")
it gives an error like:
Error using pyversion
Path argument does not specify a valid executable.
And after that when when we are using pyenv instead of pyversion, it also gives error
pyenv('C:\Users\ASUS\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Python 3.11\python.exe')
Error using pyenv
Invalid number of arguments.
Fangjun Jiang
Fangjun Jiang 2024-3-1
移动：Fangjun Jiang 2024-3-1
If you look at the file under C:\Users\ASUS\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Python 3.11\, they are most likely "short cut" file, not executable. Please locate the actual .exe file.

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Mike Croucher
Mike Croucher 2024-2-29
编辑：Mike Croucher 2024-2-29

0 个投票

Hi Mukesh
The pyversion command is no longer recommended. See the doc at (Not recommended) Change default version of Python interpreter - MATLAB pyversion - MathWorks United Kingdom.
It is better to use pyenv instead Change default environment of Python interpreter - MATLAB pyenv - MathWorks United Kingdom
Try this
pyenv(Version="C:\Users\ASUS\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Python 3.11\python.exe")

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Mukesh
Mukesh 2024-3-1
Hi Mike Croucher'
Thank you for your comment! I appreciate your insight and perspective.
But I tried as your comments such as: pyenv(Version="C:\Users\ASUS\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Python 3.11\python.exe")
it gives an error like:
Error using pyenv
Path argument does not specify a valid executable.
Could you please provide any additional insights or suggestions on resolving this issue?

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