E0401:Unable to import 'django.db' - django

So i'm studying python crashcourse and after finishing the basics I jumped to the django project.
I created a virtual env, installed django and created an app with manage.py startapp command.
I use Visual Studio Code, and the problem is when I go to models.py it gives an error that it's unable to find django.db module
unable to import error
Now I understand this is because of the file structure, which is as per my research the correct one, and I followed the book carefully, however i don't know how to fix this and I feel that i'm missing something.
This is my file structure for the virtual environment
file structure
Any idea how to fix it ? :)
Thanks in advance


Thank you Incognos !
To be more specific The solution was :
enter "code ." in the terminal and then a new VS opens.
Ctrl+Shift+P -> Select Interpreter
select the environment that starts with ./env or .\env
run Ctrl+Shift+` to activate it


VS is not seeing your virtualenv. You need to activate it for VS code so that it knows that django is installed in the virtualenv see https://code.visualstudio.com/docs/python/environments


it happens because pylint is installed outside your virtual environment. So install pylint inside virtual environment with this command (pip install pylint).


Note: If you're using Visual Studio Code - Insiders you'll use code-insiders . instead of the code . command.
Then, a new window will open and you can set your virtual environment interpreter there.
Reference: https://github.com/Microsoft/vscode/issues/6627


in my case, the problem was solved by opening VS-Code in the directory where virtualenv is located.


Click Ctrl-shift-p to access the Command pallete, then search for Python: Select Interpreter. Click on it and then select on the one that has been recommended by the editor.

Related

VS Code + Pylance does not find venv-installed modules while venv is activated

I use VS Code Version: 1.74.3 on MacOS 13.2. python -V returns Python 3.11.1.
I get the following error message: Import "django.shortcuts" could not be resolved from source Pylance(reportMissingModuleScource).
As you can see in the screenshot, the correct venv is activated and includes Django.
I also tried or checked:
Import could not be resolved/could not be resolved from source Pylance in VS Code using Python 3.9.2 on Windows 10
https://stackoverflow.com/a/65802367/2321643 but
the suggested solution with reloading the windows did not help.
reinstallation the virtual environment within VSCode and installing Django again
re-selecting the venv.
deleting all python-specific settings in user/settings.json as well as .vcode/settings.json.
Reinstallation python and associated extensions.
Using Debug I can safely run my Django-application without any import issues. What do I need to do that Pylance does not issues these problems?

My issue was a bug, fixed and closed.
For reference: https://github.com/microsoft/pylance-release/issues/3881

Try clicking on where it says "3.11.1 ('.venv': venv)" (near the bottom right).
It should bring up a little dialog sort of thing at the top where you can verify that the Python path is correct.
Check that it is using the correct Python path. It should be something like venv/bin/python3 or venv/bin/python assuming venv is situated at the root of youur project.

Why does Pycharm still refer to the old directories for my project

Am new to Flask development and am using an IDE like Pycharm for the first time, so please pardon the ignorance.
So while playing around with a project that I am working on to understand Flask, I created a virtual environment by the name venv. So the tree of my project would look something like :
my_project_directory
Project_specific_directories_and_files
requirements.txt
venv
To activate the virtual env, I used to do venv/bin/activate and my project would run as needed.
I came across virtualevnwrapper later and decided to use that. After installing it and setting it up, I moved over to the virtualenvwrapper way of working with virtual envs and completely removed(deleted) the venv directory from my project structure. The new project structure after deleting venv is as :
my_project_directory
Project_specific_directories_and_files
requirements.txt
Everything works fine. The project runs as expected.
However, now after the venv directory was removed, when I open my project in Pycharm, for my import statements like :
from flask import Flask, render_template, redirect, url_for, request, session, flash # , g
from flask_sqlalchemy import SQLAlchem
all the packages that I try importing gets underlined as error in the Pycharm IDE. I opened the Python console, in Pycharm, trying to debug the error and it gives the following error :
Error:Cannot run program "/Users/my_user_name/Desktop/some_parent_directory/my_project_directory/venv/bin/python" (in directory "/Users/my_user_name/Desktop/some_parent_directory/my_project_directory"): error=2, No such file or directory
Now I thought that apparently Pycharm is still using it's cache. So I tried invalidating the cache and restarting Pycharm as explained here, but the problem was still there.
Now I have 2 questions:
Why is Pycharm behaving this way? I removed the venv directory completely etc. Why is it still referencing the old (venv) location?
If it really is not able to resolve the dependencies, how exactly then is my project running all fine? Shouldn't it break the app?

Ok. After some further digging now, I was able to get the errors flagged in Pycharm rectified. I went to Pycharm -> Preferences -> Project: my_project_directory -> Project Interpreter & found that it was 'for some reason' still pointing to the older venv directory. From the drop down of the 'Project Interpreter:' section, I chose the path to my virtualenv created by virtualenvwrapper & saved the changes by Apply->Ok. This removed the error indications from the code in Pycharm. Although solved, the mystery of what/why was this happening is still unsolved for me. – qre0ct Jul 12 at 17:13
Moreover, I also removed the unused/deleted interpreters from the list of project interpreters by going to the 'more' section in the 'Project Interpreter' part and using the '-' at the bottom to remove the ones not needed.

No module named django.core when creating project in virtualenv

So I have looked around at a lot of questions similar to mine, however I couldn't find a concrete answer. My comp specifications are Windows 7 64-bit.
My problem is as such:
1) I installed virtualenv using pip:
pip install virtualenv
2) After that I created and activated a new environment:
path/virtualenv env
...
path/to/env/Scripts/activate
3) While running the new environment, I installed django:
(env) path/pip install django
4) After installing successfully, I am ready to make a project. However, upon trying it out:
path/django-admin.py startproject test
I get the following error:
File "C:/path/env/Scripts/django-admin.py", line 2, in (module)
from django.core import management
ImportError: No module named django.core
I have tried out various solutions people have posted, including using the full path:
python C:/path/to/django-admin.py startproject test
I have also checked to make sure the versions of Python it is referencing are correct,as both inside and outside the virtualenv it is associated with Python27. Many other solutions talked about PYTHONPATH or the syspath, however, when I import django or managemnet in the python shell, those work fine.
I have a feeling it may have something to do with the paths, but I'm not sure how a virtualenv interacts with the system paths. Since it is self-contained and the system paths are system wide, is it necessary to have something in the path specifically?
As an aside, my django-admin.py file is in both
path/env/Scripts
and
path/env/Lib/site-packages/django/bin
and the django folder is in
path/env/Lib/site-packages
How to fix this problem?

I solved this problem by using this command as following instead:
django-admin startproject
just remove the ".py" attached to "django-admin"

I could not get any other stack overflow answers to work either. Getting a venved Django stack running on Win64 is a bit of an ordeal.
But, I found an answer that worked for me here: http://samudranb.com/2012/06/02/how-to-setup-a-djangopython-development-env-on-windows/
Try running from an admin command prompt:
ftype Python.File="[your venv path]\Scripts\python.exe" "%1" %*
Just be sure to set it back to the original value when you're done.

This will help you understand why your facing that problem and there is also simple solution for that:
http://blog.jayteebee.org/2009/07/importerror-no-module-named-djangocore.html

I've literally searched for hours to a solution for this issue... I came across this video randomly: (https://www.youtube.com/watch?v=lPmkl4jtYgA) where he put "python .\Script\django-admin.py startproject" into the command prompt while in a virtual environment, so I tried the same with the following modification to point to the correct path on my machine "python .\env\Script\django-admin.py startproject". Voila!
Hopefully this helps someone as it seems there are multiple reasons for this issue.

Windows server 2003 provides the Where command
where python.exe
will show the full path of the current python.exe found on the path, use that to check it's using the correct one for your virtualenv.
The association issue comes into play because running
file.py
so the .py is argv[0] passes it through the windows association, which won't follow your venv.
python file.py
will not find file.py unless it's in the current directory.
So the solution is -
python %VIRTUAL_ENV%\scripts\django-admin.py startproject myproject
This runs python from the current active venv
and uses the venv env variable so it points to the correct location of django-admin.py (or you could give it an absolute path yourself of course)

I had the same problem. I solved that using this command:
(env)C:\environment directory>python Scripts\django-admin.py
This link was helpful for me:
enter link description here

i had the same problem i am running both python 3.4 and 2.7, so i pip installed Django globally on my machine and when i returned to my virtual environment i was able to create a project with no problems.

In Windows, you set:
set PATH=C:\virtualenv\python2.7\Scripts REM Scripts folder contains python.exe, pip.exe, django-admin.exe,...
set PYTHONPATH=C:\virtualenv\python2.7\Lib\site-packages REM site-packages folder contains packages of python such as django,...
After, create project mysite by
django-admin.py startproject mysite

I had this same problem using virtualenv in Terminal in MacOSX (Snow Leopard). My solution to the problem was to change the first line of django-admin.py from
#!/Library/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/Contents/MacOS/Python
to
#!/path-to-your-virtualenv-directory/bin/python
Hope this helps someone.

I had the same problem and the way I resolve it was by activating my project directory before making migrations and running my server "python manage.py runserver".
Activate project Directory: source /path/bin/active
Path meaning where your project is stored.

Had same error and This solved it out for me.
source /path/to/virtualwrapper/activate
pip install django
This fix tries to re-install and configure django

I had the same problem, but I solved it, first I activated the virtual env, then ran:
django-admin.exe startproject project_name

How to create a project with Bitnami DjangoStack?

I just installed the Bitnami DjangoStack and want to know how to create a new project in Windows.
I tried opening the python.exe (similar to command prompt) and tried typing in:
django-admin.py startproject testproject
which is what all the articles seem to say to start with.
I am getting an invalid syntax error. I'm assuming I'm missing something very basic?
Thanks!

You need to run django-admin.py from the command prompt.
The Python interactive interpreter (what you get when you open up python.exe) is for typing in Python code and running it line by line. If you want to run Python code that is in a file, you need to run it from command prompt.
Note that if that doesn't work, you might need to put python before it, and you also might need no specify the full path (usually something like python C:/Python27/Scripts/django-admin.py, assuming you're on Python 2.7.)

Django extensions error message

Im a django beginner and am using it on a windows machine. Now when i run 'python manage.py runserver', im getting the following message :
"Error: No module named django_extensions"
Any way to fix this ?
Thank You

Look inside your settings.py file under the INSTALLED_APPS setting and delete "django_extensions". Or you can install django_extensions in this environment.

You're testing a Django application right ? (one you didn't write). It seems you miss some dependencies (at least this one).
You might be able to install it throw easy_install or by executing the setup.py of the following package (django-extension).
You also have to check if you have django_extension in your INSTALLED_APPS settings variable, but I'm not quite sure it is needed for django-extension..
Anyway, you might want to install this package : django-extension