Installing Qt for Python. (On Windows 10)

[davediamond]

https://doc.qt.io/qtforpython/quickstart.html

The problem I'm having is with the following shell command :

env\Scripts\activate.bat

Error:
The system cannot find the path specified.

[snippsat]

Give full Path,quick example.

# Make
λ python -m venv pq_env

# Cd in
G:\div_code
λ cd pq_env\

# Activate with absolute path
G:\div_code\pq_env
λ G:\div_code\pq_env\Scripts\activate.bat

# Test pip,shall point to this folder
(pq_env) G:\div_code\pq_env
λ pip -V
pip 22.0.4 from G:\div_code\pq_env\lib\site-packages\pip (python 3.10)

(pq_env) G:\div_code\pq_env 

[deanhystad]

env\Scripts\activate.bat assumes env is a subfolder of the current folder. If you type dir<enter> you should see something like:

Output:
03/03/2022  03:03 PM    <DIR>          .
03/03/2022  03:03 PM    <DIR>          ..
02/08/2022  06:25 PM    <DIR>          env
04/13/2022  01:17 PM    <DIR>          windows64

If you type dir env <enter> you should see.

Output:
02/08/2022  06:25 PM    <DIR>          .
02/08/2022  06:25 PM    <DIR>          ..
02/08/2022  06:25 PM                42 .gitignore
02/08/2022  06:25 PM    <DIR>          Lib
02/08/2022  06:25 PM               264 pyvenv.cfg
03/07/2022  03:20 PM    <DIR>          Scripts

And if you type dir env\Scripts you should see

Output:
03/07/2022  03:20 PM    <DIR>          .
03/07/2022  03:20 PM    <DIR>          ..
02/08/2022  06:25 PM             2,148 activate
02/08/2022  06:25 PM             1,021 activate.bat
02/08/2022  06:25 PM             3,071 activate.fish
02/08/2022  06:25 PM             1,755 activate.ps1
02/08/2022  06:25 PM             1,162 activate.xsh
02/08/2022  06:25 PM             1,193 activate_this.py
02/08/2022  06:28 PM           106,360 cmake_pprint.exe
02/08/2022  06:25 PM               510 deactivate.bat
02/08/2022  06:25 PM           106,358 pip-3.9.exe
02/08/2022  06:25 PM           106,358 pip.exe
02/08/2022  06:25 PM           106,358 pip3.9.exe
02/08/2022  06:25 PM           106,358 pip3.exe
02/08/2022  06:25 PM                24 pydoc.bat
03/07/2022  01:45 PM           106,362 pyproject-build.exe
02/08/2022  06:25 PM           535,056 python.exe
02/08/2022  06:25 PM           534,544 pythonw.exe
03/07/2022  03:20 PM           106,348 uvicorn.exe
02/08/2022  06:25 PM           106,345 wheel-3.9.exe
02/08/2022  06:25 PM           106,345 wheel.exe
02/08/2022  06:25 PM           106,345 wheel3.9.exe
02/08/2022  06:25 PM           106,345 wheel3.exe

[davediamond]

I don't have a 'env' directory, just a 'venv' one.

dir

produces this list :

 Volume in drive C has no label.
 Volume Serial Number is B475-2996

 Directory of C:\Users\GreenBus

14/04/2022  00:18    <DIR>          .
14/04/2022  00:18    <DIR>          ..
11/04/2022  01:24    <DIR>          .atom
28/01/2022  20:27    <DIR>          .cache
09/04/2022  18:56    <DIR>          .dbus-keyrings
13/04/2022  18:52    <DIR>          .designer
28/01/2022  20:09    <DIR>          .eclipse
11/04/2022  01:42    <DIR>          .idlerc
06/12/2021  02:56    <DIR>          .Origin
14/04/2022  18:12    <DIR>          .p2
11/04/2022  20:03             3,186 .pagerc
06/12/2021  02:56    <DIR>          .QtWebEngineProcess
15/11/2021  18:46    <DIR>          3D Objects
25/01/2022  00:27    <DIR>          ansel
14/04/2022  00:18    <JUNCTION>     Box [\??\Volume{070790e4-b7a1-11ec-b1ef-2cf05dd29584}\]
15/11/2021  18:46    <DIR>          Contacts
14/04/2022  00:19    <DIR>          Creative Cloud Files
14/04/2022  17:53    <DIR>          Desktop
13/04/2022  20:34    <DIR>          Documents
14/04/2022  17:53    <DIR>          Downloads
28/01/2022  20:55    <DIR>          eclipse
28/01/2022  20:54    <DIR>          eclipse-workspace
31/01/2022  20:37    <DIR>          Favorites
15/11/2021  18:46    <DIR>          Links
15/11/2021  18:46    <DIR>          Music
02/02/2022  22:47               994 New document 1.2022_02_02_21_47_34.0.svg
11/04/2022  01:45    <DIR>          OneDrive
15/11/2021  18:47    <DIR>          Pictures
25/01/2022  01:13    <DIR>          Saved Games
15/11/2021  18:47    <DIR>          Searches
12/04/2022  18:09    <DIR>          venv
14/04/2022  00:18    <DIR>          Videos
               2 File(s)          4,180 bytes
              30 Dir(s)  192,383,741,952 bytes free

dir C:\Users\GreenBus\venv\Scripts

...shows the activate.bat file. When I run it, I get the following :

(venv) C:\Users\GreenBus\venv\Scripts>

Does the current directory get used as the virtual directory? Can I set it to my work directory, sorry I'm clueless...I'm going to investigate.

[snippsat]

...shows the activate.bat file. When I run it, I get the following :

Then is activated test pip,but just follow my commands and give it better name as eg pq_env(my fist command make this folder).
I use cmder in demo.but commands is just the same in cmd or Poweshell.

[davediamond]

Give full Path,quick example.

# Make
λ python -m venv pq_env

# Cd in
G:\div_code
λ cd pq_env\

# Activate with absolute path
G:\div_code\pq_env
λ G:\div_code\pq_env\Scripts\activate.bat

# Test pip,shall point to this folder
(pq_env) G:\div_code\pq_env
λ pip -V
pip 22.0.4 from G:\div_code\pq_env\lib\site-packages\pip (python 3.10)

(pq_env) G:\div_code\pq_env 

G:\div_code

< what is the purpose of this directory? Just so I know. I've not written batch files in .cmd before. Is this where you put all your Python modules?

[snippsat]

< what is the purpose of this directory? Just so I know. I've not written batch files in .cmd before. Is this where you put all your Python modules?

It's just folder that i have made where have my python files/folders.
So it's has nothing to with batch files,it's just a ordinary folder folder you can make your own.
So when start in this folder then commands shown will make a new sub-folder there called pq_env.

[deanhystad]

I put my virtual environment in the root directory of the project I am working on. If you are using pycharm or vscode (or probably any of the IDE's) it doesn't matter where you put the virtual environment because they remember where it is.

If you named your virtual environement venv, then you would type "venv\Scripts\activate" to run it. I find in Windows that you don't have to type the .bat. You also don't have to worry about upper/lower case because windows doesn't care.

[davediamond]

I now have the following running on my pc :

(pq_env) C:\Users\GreenBus\myPython\pq_env>

[deanhystad]

Now you just have to make sure you are running your virtual environment whenever you install any Python packages.