Beginners guide to Linux for radio astronomers: How to open virtual environment in Ubuntu called ezra-env

[Andrew Thornett]

Perhaps some of you are at that stage in your radio astronomy journey where you are trying to get your head around how to use Linux. This is also where I am. So, I thought it might be useful to post occasional posts under the title "Beginners guide to Linux for radio astronomers" with things I have learnt and which you might find helpful - feel free to comment on them or add your own!

Andy

Today is about......

How to open virtual environment in Ubuntu called ezra-env (replace ezra-env with the name of your favourite virtual environment)......

If it’s a Python virtual environment created with venv or virtualenv, you open (activate) it with a single command—just make sure you’re in the directory that contains it. The virtual environment appears as sub-directory within that directory. 

1. Navigate to the folder that contains the environment

cd /path/to/your/project

You should see a directory named ezra-env inside that project folder.

2. Activate the virtual environment

source ezra-env/bin/activate

After this, your shell prompt will usually show something like:

(ezra-env) andrew@ubuntu:~$

3. To deactivate it

deactivate

---

If the environment lives somewhere else

Just give the full path:

source /full/path/to/ezra-env/bin/activate

If you're not sure where it is, you can locate it:

find ~ -type d -name "ezra-env" 2>/dev/null