Don't have much expertise in programming. Only picked up Python last summer.
I have installed both Atom and Conda on my computer. Recently, I've used Atom to edit my scripts in Python, then run the scripts via Command Line. As per standard practice, I created Virtual Environments where I installed packages I needed to run different Python scripts.
I now want to use Atom as an IDE, and so have installed the Script package on Atom so I can run my scripts in Atom itself. However, when I tried running a Python script that required the Python numpy package, I got this:
ImportError: No module named 'numpy'
This error is obviously going to appear for other packages that haven't already been installed in the root environment (I think?).
So now, my question is how do I activate the needed Virtual Environment in Atom? In other applications like Jupyter and Spyder, I would activate the Virtual Environment I needed then open the Application via Command Line, but I can't do that with Atom.
(If possible, is there a way to use Virtual Environments created by Conda)
Thanks
One way is to start atom from the activated virtual environment. In this case, executing programs/scripts uses the configured python interpreter and imports the installed in the virtual environment.
EDIT:
It's been long though, it might be useful for people redirected to this question.
By installing atom-python-virtualenv you can create, change or deactivate virtual environments with atom editor.
The hydrogen package for Atom works well for this.
You will also need to install Jupyter into your conda environment and Hydrogen should pick up the IPython kernel automatically.
Related
I'm using Pop_OS! Linux. Whenever I make a Python Virtual Environment using mkvirtualenv and then pip install packages into it, that environment does not work when I reference it inside pycharm. I set up virtual environments using virtualenv and virtualenvwrapper.
The workaround I've found is to build any virtual environment you need to use inside of PyCharm inside of pycharm, or using the terminal inside of PyCharm. I'm annoyed it doesn't seem compatible with my native terminal, and can't figure out why. I even get slightly different python versions by running python --version both inside the PyCharm terminal and in the native linux terminal, while inside the same virtual environment! It's like Pycharm isn't reading the same information out of the python environment directory as my terminal is.
What is going on here, and how do I harmonize PyCharm with the rest of my linux machine? I'm also new to Pop_OS! Trying it out for the first time is an adventure.
IDK if that will work, but maybe if you install your packages via the "Python packages" tab in PyCharm (down left -> add package next to the research bar that appeared), PyCharm will see them while it installed them itself.
I am using Python 3.7.9 Shell.
I created a virtual environment in this location
C:\Users\my_username\Desktop\Projects.venv
Inside of Python Shell, when I type: import numpy, which is in my .venv\lib folder, it says that the module does not exist.
Using Python Shell, how do I make use of the contents in .venv? In particular, the libraries located there?
Edit #1: Include Details
In my windows command line, it has (.venv) off to the left.
I have run the Activate file. I then started Python.
In my \lib\site-packages area, I have the requests library.
When I open up Python Shell and type "import requests", it says "no such library can be found"
I am using Windows 10
I installed the libraries while in the (.venv) environment.
Theory:
In the virtual environment, in Python Shell, it's searching a different location for libraries...now if I can just figure out where it's searching and how to change that...I might be able to make progress.
Edit #2: My Progress
My theory was correct. Despite using a virtual environment, it's not looking for the libraries installed in (.venv)\lib\site-packages, it's looking somewhere outside of that.
Now I just need to figure out how to make the Python code look for libraries inside of (.venv)\lib\site-packages when I'm in the virtual environment.
When I run the python.exe file inside of the (.venv)\Scripts location, it recognizes the virtual environment scripts.
If I click on my version of Python.Exe located in my C:...\Programs\Python 3.7 folder, it doesn't recognize them.
I was under the impression it didn't matter where I clicked on the Python.exe file if I did it after going to the virtual environment in the command line? Is this not true?
Edit #3: Important Links
Where Python Looks for Modules When Importing
Right from the official docs https://docs.python.org/3/tutorial/venv.html#creating-virtual-environments
Once you’ve created a virtual environment, you may activate it.
On Windows, run:
tutorial-env\Scripts\activate.bat
On Unix or MacOS, run:
source tutorial-env/bin/activate
this is done in your shell before starting python at its prompt, and allows you to choose different python versions in addition to other benefits
I have been programming in Python using Spyder in combination with virtual environments for a while now. Before I started using virtual envs, I installed Spyder using pip. I am not very familiar with paths and environments, but this seemed the way to go when I repetitively ran into package compatibility issues. However, it has been bugging me that every time I want to switch environment, I need to change the working directory to the folder of the environment and I need to change the Python interpreter manually within Spyder.
When I was looking for a solution, I found that it is possible to install Spyder within a virtual environment. I did this and found out that opening Spyder from a virtual environment has the exact same working directory and interpreter as the standalone version (the one I started with). This means that I still have to change the interpreter and working directory manually... Am I doing something wrong or is the only way to switch environments by changing it in the preferences tab within Spyder?
Background info: Using Windows, Spyder 4.2.1, venv as described on https://docs.python.org/3/tutorial/venv.html
In general I am new to python so keep it easy. I have started my coding in Spyder since it was easy to install libraries with Anaconda.
Now we want to switch to VS Code for version control. I have switched interpreter and python path to Anaconda folder, but if I open python files I have created in Spyder I can't use in VS code, issue always is with importing libraries.
Screenshot
The first rule with Anaconda is to not manually mess around with the paths. Anaconda has a different philosophy: Before you can use Python, you need to activate a conda environment.
c:\> conda activate
(Anaconda3) c:\> python
>>>
VSCode detects conda environments and you just have to select one for your project (Python: Select interpreter). Now open a new terminal and watch VSCode activating the environment for you (like shown above).
However, when you start your script for the first time, VSCode sometimes invokes the interpreter even before the conda activation has finialized. Then simply restart your script.
I am quite new to python and pycharm.
I installed python 3.6 through anaconda, and I can see many packages including numpy are installed as I can see them in cmd (im using windows) by typing 'conda list'. Also, it works if i type 'import numpy' in python through window command prompt.
However, if I open pycharm and run "import numpy" there, it gives me 'No module named 'numpy' in pycharm'. May I know whats wrong with my setting? I guess it must be some problem with my interpreter setting.
I think my python is installed in C:\Users\AAA\Anaconda3\python.exe
I checked in pycharm, project interpreter is "C:\Users\AAA\PycharmProjects\untitled\venv\Scripts\python.exe"
Should I change it to the one under anaconda3 folder?
What is venv folder under "pycharmprejcts"? Is it a virtual environment? It shows (see the attached screenshot) the base interpreter is the one under anaconda? Should I choose to inherit global site-packages?
You should select Conda environment in Pycharm, not create a new, blank Virtualenv
Or at the very least - System interpreter, then find the Python executable for Anaconda
What is venv folder under "pycharmprejcts"? Is it a virtual environment?
Yes, it allows your project to be more portable - you define the minimum set of dependencies for your code rather than rely on everything installed only locally on your machine
You have a virtual environment, this helps keep the dependencies separate between projects. You can set your project interpreter to C:\Users\AAA\Anaconda3\python.exe or install the dependency in your venv, in pycharm you would press alt+enter on the import and press install.