How to create a virtualenv by cloning the current local environment?

Question

Suppose I have a python interpreter with many modules installed on my local system, and it has been tuned to just work.

Now I want to create a virtualenv to freeze these, so that they won't be broke by upgrading in the future.

How can I make it? Thanks.

I can't use pip freeze, because that's a cluster on which there's no pip and I don't have the privileges to install it. And I don't want the reinstall the modules either, I'm looking for that whether there's a cloning way.

@Marcin I searched on google and here but got nothing:-( – Timothy Jan 06 '13 at 18:29 — Timothy, Jan 06 '13 at 18:29
You can install pip if you can write to files. – Marcin Jan 06 '13 at 18:44 — Marcin, Jan 06 '13 at 18:44

score 8 · Answer 1 · answered Jan 06 '13 at 18:29

8

Run pip freeze to create a list of all modules currently installed on the system. Then make a virtualenv and install these modules.

pip freeze > env_modules.txt
virtualenv my_env && cd my_env && source bin/activate
pip install -r ../env_modules.txt

answered Jan 06 '13 at 18:29

Jon Gauthier

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no, I can't use `pip`. That's a cluster on which I don't have the privileges to install anything, including `pip` itself. That's why I'm asking to clone, not to reinstall. – Timothy Jan 06 '13 at 18:32
@Jon Gauthier It does not work ((( When running command "pip install -r ../env_modules.txt" - it says for every package that: "Requirement already satisfied: asn1crypto==0.22.0 in c:\python34\lib\site-packages" So - it is using LOCAL packages and doesn't want to create a CLONE!!! Jon, can you please help with this problem? – User New Sep 30 '17 at 09:54

score 0 · Answer 2 · edited Jun 20 '18 at 00:35

0

Virtualenv does not work because it uses local python interpreter.

My solution is to use conda (anoconda or miniconda) to build the environment, so if you need some packages, you can just conda install them. Then copy it to the remote machine and run.

edited Jun 20 '18 at 00:35

Stephen Rauch

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answered Jun 20 '18 at 00:12

Q.Zhao

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score -3 · Answer 3 · edited Dec 09 '16 at 06:18

-3

I think the best is to use cpvirtualenv like this:

cpvirtualenv <name_of_virtualenv_to_be_copied> <name_of_new_virtualenv>

edited Dec 09 '16 at 06:18

Pang

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answered Dec 09 '16 at 05:54

Humphrey Butau

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How to create a virtualenv by cloning the current local environment?

3 Answers3

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