[Tutor] Error When Using CoolProp

[Bernard Marjaba]

Ok I changed the version like you said, and coolprop is successfully installed. Now I’m getting this error when trying to install matplotlib. I already installed pip for python 3.8, but i think the issue here is accessing the right path, because here it shows its accessing 2.7 instead of 3.8. How do I fix this issue?

Bernards-MacBook-Pro:Python Bernard$ python -m pip install -U matplotlib
/System/Library/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/Contents/MacOS/Python: No module named pip

Thanks and regards,
Bernard Marjaba
(514) 922-9807

> On Dec 8, 2021, at 10:23 AM, Mats Wichmann <mats at wichmann.us> wrote:
> 
> On 12/8/21 08:18, Bernard Marjaba wrote:
>> Kind reminder please
>> On Mon, Nov 29, 2021 at 7:01 PM Bernard Marjaba <marjababernard at gmail.com <mailto:marjababernard at gmail.com>> wrote:
>>    Hello,
>>    Yeah sure I’m checking with them as well. Meanwhile, this is a
>>    purely python related error following what you suggested to me about
>>    installing the wheel package:
>>    I tried installing the wheel package using
>>    (venv) Bernards-MacBook-Pro:Python Bernard$ pip install
>>    /Users/Bernard/Downloads/CoolProp-6.4.1-cp38-cp38-macosx_10_9_x86_64.whl
>>    but it gave me this error
>>    ERROR: CoolProp-6.4.1-cp38-cp38-macosx_10_9_x86_64.whl is not a
>>    supported wheel on this platform.
>>    I assume this means that i need python 3.8 for this wheel to work,
>>    which I have. I typed python3 in terminal it gave me 3.8.10, i typed
>>    python3 in PyCharm and it gave me 3.9.5, how come? So i searched for
>>    python 3.9 in my MacBook and i couldn’t find any traces of it,
>>    except for in a project folder:
>>    /Users/Bernard/PycharmProjects/Isentropic SUS Model/venv/lib/python3.9
>>    However, 3.8 exists in the Applications folder. Any idea how to
>>    remove all traces of 3.9?
> 
> you select the interpreter in PyCharm independently of what the system thinks the default is - it's a clickable field in the bottom of the screen. Probably you'll be okay when you select 3.8.  If you choose to make a virtualenv, remember you have to install your packages in that virtualenv for them to be picked up - from the path you show it looks like you ended up with a 3.9 virtualenv. you can do that through pycharm, if that's what you intend to use.  they have lots of docs on that.