Develop Reference

python interpreter not found for Django project after re-installing python

I have made an application using Django in pycharmIDE.after completing my project I deleted python from my machine and re-installed now when I run my application it shows
No Python at 'C:\Users\Raisan\AppData\Local\Programs\Python\Python37-32\python.exe'
how can I set python interpreter in Pycharm

In order to set Python interpreter in a PyCharm project, you should click on:
File -> Settings -> Project -> Project Interpreter
Then, on the top of the window, you should have a dropdown selection with Project Interpreter label. Here you can choose the project interpreter for your project.
If the interpreter is not present, click on the settings icon (gear wheel) on the right anc choose "Add".
Then choose "Existing enviroment" and navigate througth your directories until you will find your Interpreter.
Remember that you have to select the python.exe file.

Please set environment variable and try it otherwise uninstall python and and reinstall it but that time select custom python install and choose appropriate options like IDEdevelopment environment pip etc.

Pycharm storing packages in separate files?

I am using Python 3.7 on windows. I installed Pycharm and successfully wrote a script which I am now trying to schedule using Windows Task Scheduler, which comes with its on set of complications. One thing I have noticed about Pycharm is I think it has created a separate file directory to store any packages I add to a script (maybe in something called "venv"? Instead of using the User/Python37/Scripts file.
This means when I try to run my script in the command prompt, python.exe looks for packages and cannot find them. Also if I go into my Pycharm project folder is see another instance of a Python Application file different than the Python Application stored in User/Python37. I think this also creates problems but I am not 100% sure.
I am hoping someone has seen this issue and can help me align where Pycharm stores packages. Any help would be greatly appreciated.

You can also simply add your script/package into your python path.
For that follow this awser : How to add to the PYTHONPATH in Windows, so it finds my modules/packages?

PyCharm creates a virtual environment (venv) where you can keep the python version and the libraries used in a specific project.
You can add libraries to the specific environment through the Pycharm GUI:
File > Settings > Project: Patterns > Project Interpreter > Install (green +)
Find your package and click Install Package in your venv.
You can see all the installed packages and their version in the path:
File > Settings > Project: Patterns > Project Interpreter
You can also use pip install, if you want to go through CLI, but be sure to use the virtual environment's pip (located in project_folder/venv/Scripts).
If for some reason you want to use the python version outside the virtual environment, go to the following path in PyCharm:
File > Settings > Project: Patterns > Project Interpreter
In the Project interpeter dropdown menu, you should find other python's location; choose the one you prefear. If you don't see your standard python version (usually in C:\python\python.exe, or something similar), you can add it by clicking on the settings menu, and specify the path to the desired python version in Base interpreter:.
In this window, you can find other settings to configure the interpreter as you want.

Associating a python project with a virtual environment

been searching for this with no success, i don't know if i am missing something but i have a virtualenv already but how do i create a project to associate the virtualenv with, thanks
P.S. Am on windows

I could be wrong here, but I do not believe that a virtualenv is something that is by its very nature something that you associate with a project. When you use a virtualenv, you're basically saying, "I'm taking this Python interpreter, installing what I want on it, and setting it aside from the Python interpreter that the entire computer uses by default." Virtualenv does not have a concept of a Python "project"; it is just a custom version of a Python interpreter that you run code through. There are tools in IDEs like PyCharm that enable you to associate a project with a virtualenv, but those are another layer on top of the base software.
In order to use a virtualenv with a project, you will need to "activate" it every time you wish to use it. The documentation for activating a virtualenv on Windows is found here.
EDIT:
Saw that you had virtualenvwrapper tagged in your post, so I did a bit of hunting on that. It would appear that there is the mkproject command, which creates a project folder and then associates it with a virtualenv interpreter. Documentation on it can be found here.

Requirements:
Virtual Env
Pycharm
Go to Virtual env and type which python
Add remote project interpreter (File > Default Settings > Project Interpreter (cog) add remote)
You'll need to set up your file system so that PyCharm can also open the project.
NOTE:
do not turn off your virtual environment without saving your run configurations that will cause pycharm to see your run configurations as corrupt
There's a button on the top right that reads share enable this and your run configs will be saved to a .idea file and you'll have a lot less issues

If you already have your virtualenv installed you just need to start using it.
Create your projects virtual environment using virtualenv env_name on cmd. To associate a specific version of python with your environment use: virtualenv env_name -p pythonx.x;
Activate your environment by navigating into its Scripts folder and executing activate.
Your terminal now is using your virtual environment, that means every python package you install and the python version you run will be the ones you configured inside your env.
I like to create environments with the names similar to my projects, I always use one environment to each project, that helps keeping track of which packages my specific projects need to run.
If you haven't read much about venvs yet, try googling about requirements.txt along with pip freeze command those are pretty useful to keep track of your project's packages.

I like Pipenv: Python Dev Workflow for Humans to manage environments:
Pipenv is a tool that aims to bring the best of all packaging worlds (bundler, composer, npm, cargo, yarn, etc.) to the Python world. Windows is a first-class citizen, in our world.
It automatically creates and manages a virtualenv for your projects, as well as adds/removes packages from your Pipfile as you install/uninstall packages. It also generates the ever-important Pipfile.lock, which is used to produce deterministic builds.
Pipenv is primarily meant to provide users and developers of applications with an easy method to setup a working environment.

PyCharm with Pyenv

How to use Pyenv virtualenv's with Pycharm 2016.3? In the earlier version of Pycharm, I could easily set up local interpreter to point anything installed on my machine.
My first idea was to add .python-version file on the root of the project. I Pyenv virtualenv installed so this will activate & run the project with correct environment automatically. However, Pycharm still doesn't see the correct interpreter causing it to though import and syntax errors.
How can I select my local Pyenv in new PyCharm 2016.3 I used to be able to set the path as variable now I can only browse the path using drop-down menu. It doesn't seem to show hidden files like default path for pyenv ~./.pyenv/versions{project}.

In Pycharm version 2017.3, you can go to
Pycharm -> Preferences -> Project -> Project Interpreter -> <project_name> -> settings button on the right of the python interpreter text box -> Add local
This will open a new window with virtualenv Environment as one of the options on the left. On Selecting it, you will get an option to make a new virtualenv environment or use an existing virtual environment. Here next to the dropdown text box, you can click "..." and browse to your existing virtualenv created using pyenv and select it. It will select this virtualenv when you start terminal from Pycharm and also use the corresponding python interpreter as set while creating that virtualenv.

Get pyenv-virtualenv plugin for more project-specialized environments.
Then, create a new environment for project: (assume that we installed python-3.7.1 with pyenv and we'll use it)
$ pyenv virtualenv 3.7.1 projectName-3.7.1
This command generates folder for our environment.
Open pyCharm (v2018.3.1 used):
Create New Project > Existing Interpreter
Now you can type path of your environment:
~/.pyenv/versions/projectName-3.7.1/bin/python3
Then press Create..
That's all.
If there is already exists project:
File > Settings > Project: projectName > Project: Interpreter
Again, you can type path of the environment as like above. So you will see packages installed on this environment.
If you want to use same version of python and environment on the command line, then you must activate the environment with
$ pyenv activate projectName-3.7.1
command.
Note that pyenv virtualenv can activate that environment when entering the folder within the terminal through putting the name of it into your .python-version file as well.
For more command about pyenv-virtualenv you can look for reference sheet.

Personally, I made the best experiences with using pyenv and pipenv together. So far, I used separate commands for that, rather than using the pyenv-virtualenv plugin, but it should be supported with this hint as well.
My workflow to start a new project:
Create folder and switch into it:
mkdir new_project ; cd new_project
Set desired local pyenv version:
pyenv local 3.8.0
Create an empty pipenv virtual environment, using just that local version:
pipenv --python $(pyenv which python)
Now comes the tricky part: PyCharm is supporting Pipenv as an interpreter, but it doesn't recognize it automatically anymore after the initial interpreter selection (which happens at project initiation / first time opening of the project, automatically).
So - if you just created the new project folder (without PyCharm's .idea/ folder created yet), it will recognize the Pipenv-Virtualenv of the project just fine and set it as a project interpreter, automatically:
If there is already an .idea/ folder, it's not that easy, since PyCharm's GUI just supports to create a new Pipenv environment, but you still have an option:
Close PyCharm, delete .idea/ folder and reopen the project folder in PyCharm.
This will delete other project settings as well, but shouldn't be something too important for a fresh environment.
Open the folder in PyCharm again and it will recognize your Pipenv virtualenv.

You don’t mention what operating system you’re using, and it’s relevant here.
If it’s OS X or macOS, you can press Shift+Cmd+G in the file selection dialog (when you’re choosing the location of a new local interpreter) to enter a path manually. (This is a standard macOS shortcut that works in any native file selection dialog.)

After taking a lead from Mr. Judge regarding the use of pyenv, I stumbled on a way to introduce an interpreter from pyenv to an existing PyCharm (2020.2.2, if it matters) project without blowing away the .idea directory.
Prior to using any other Environment type (Pipenv, Poetry, etc.), first open the Virtual Environment option:
Select Exiting environment and then navigate to one of your pyenv shims using the […] button to the right of the Interpreter: drop-down. Then click Make available to all projects.
You can then go to the Pipenv or Poetry Environemnt (Plugin) to reference that introduced interpreter now.

Using linux console in pycharm

I'm new to pycharm, virtualenv, linux and git.
I've recently begun a journey of using djangoto make webapps. Before I used sublime to make scripts however now a more complex project management system such as pycarm was needed. I actually wanted to get a linux VM and go down that road but was advised that windows python IDE such as pycharm would be suitable
I recently learnt the importance of dependencies and how to use virtualenv. However in this tutorial, under the 'How do I use my shiny new virtual environment?' it starts using commands such as:
ls env
and
which python
Neither of which my pycharm console would understand.
I could use a console emulator such cmder to use the commands but then I would remove the convience of using the IDE's integrated one.
Should I upgrade to a linux VM ? Or can I install a package that allows me to use such commands in PyCharm.
As a bonus question, what are the commands in that tutorial ? are they linux commands? when ever i see $ .... is that the linux console ?

You can accomplish this using Vagrant: https://www.vagrantup.com/
You can use Vagrant and VirtualBox to setup a Linux VM (distro of your choice) and then install all of your Python dependencies in the VM. Once you have that setup, you can tell PyCharm to use the Python interpreter in your VM by following these steps:
Open the project settings dialog box in PyCharm.
Expand Project: (your project name) on the left side.
Click on Project Interpreter.
Click on the cog icon on the upper right side of the window and select Add Remote.
Click on the Vagrant radio button.
In the Vagrant Instance Folder box, select the directory your Vagrantfile is located in.
In the Vagrant Host URL box, make sure ssh://vagrant#127.0.0.1:2222 is specified.
Click OK.
Since Vagrant is compatible with Windows this solution should work for you. I have done it successfully using macOS and it works great. Good luck!
You might find this tutorial useful: https://developer.rackspace.com/blog/a-tutorial-on-application-development-using-vagrant-with-the-pycharm-ide/

I got this to work on Windows 10 with Anaconda Prompt. This terminal which comes with Anaconda, creates a "base" environment with a linux-like virtual machine and your Windows file system (C:\\) mounted to /c, and has bash installed with common Unix commands like cd, ls, chmod, echo, cat, ... Running programs from bash with access to environment variables is much nicer than Windows Powershell etc.
Now to get your Terminal in Pycharm to use Anaconda Prompt instead of cmd.exe, I followed this answer. After installing Anaconda and/or Anaconda Prompt, right-click -> Open File Location -> right-click the shortcut -> Properties -> copy file path. Then use your file path instead.
Conda is great for package environment management. Learn more about it here. For Django + Conda specifically, read here. You can also use pip to install from Python package indexes, github repos, and requirements.txt files instead. Unless you know how Anaconda Prompt works, I don't recommend creating your own environments from scratch. What worked for me was:
(base) C:\Users\wassadamo> conda create -n mynewenvironment --copy base
...
(base) C:\Users\wassadamo> conda activate mynewenvironment
(mynewenvironment) C:\Users\wassadamo> ls
folderA folderB file.txt
Works!
Whenever I try running conda deactivate to leave the base environment, my bash commands would stop working. So clone base as above.
Another tip: if you want to run shell scripts from Terminal within PyCharm with Anaconda Prompt this way, then execute them (e.g. "run.sh") on command line with
bash run.sh
I tried putting this on the first line of my run.sh
#!/usr/bin/bash
And running it with
./run.sh
But this had the effect of running it in an external Anaconda Prompt instance (add sleep, or some user input command to force it to wait and see for yourself). Explicitly running my .sh files with bash had the desired effect of running them in the same shell as I started them in PyCharm Terminal configured with Anaconda Prompt.