Installing python packages in a virtual environment via bash script and pip

Question

To clarify I have read these questions already:

How to source virtualenv activate in a Bash script

How to activate python virtual environment by shell script

Activating virtualenv in Bash script not working

Bash: How _best_ to include other scripts?

My goal is to create a script that will automate the process of installing several (roughly 27) python packages via pip in a virtual environment using (preferably) a bash script.

So far in bash scripts I have tried:

source env/bin/activate
pip install numpy Scipy ez_setup

As well as

activate() {
. ../.env/bin/activate
}

activate
pip install numpy Scipy ez_setup

Neither of which works. What is the best way to approach this problem given it must be executable as part of a larger bash (or python) script?

source env/bin/activate should work - is there any output? The name of the venv should appear in brackets prepended to your terminal prompt. It's possible you may have to execute scl enable python27 bash if you are in a remote environment. — russdot
– russdot, Commented Jun 23, 2015 at 21:23
In this case I'm actually not working in a remote environment, but yes this is what I had expected too, yet it doesn't appear to be the case. — Lexa Gaffer
– Lexa Gaffer, Commented Jun 29, 2015 at 13:39

Lexa Gaffer · Accepted Answer · 2015-06-29 18:11:28Z

4

Update: So I figured out my problem. The solution for me is to force the script to pull from the correct pip directory with

/env/bin/pip install numpy Scipy ez_setup

The second part is to break down the install instructions into each line because the registries were not being updated properly.

answered Jun 29, 2015 at 18:11

Lexa Gaffer

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