The Python Oracle

How to duplicate virtualenv

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Chapters
00:00 Question
00:29 Accepted answer (Score 235)
01:44 Answer 2 (Score 38)
01:59 Answer 3 (Score 18)
02:14 Answer 4 (Score 15)
03:01 Thank you

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Full question
https://stackoverflow.com/questions/7438...

Answer 1 links:
[virtualenv-clone]: https://github.com/edwardgeorge/virtuale...

Answer 2 links:
[command to duplicate virtualenv]: https://virtualenvwrapper.readthedocs.io...

Answer 3 links:
[virtualenv-clone]: https://pypi.org/project/virtualenv-clon.../

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Content licensed under CC BY-SA
https://meta.stackexchange.com/help/lice...

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Tags
#python #django #virtualenv

#avk47



ACCEPTED ANSWER

Score 249


The easiest way is to use pip to generate a requirements file. A requirements file is basically a file that contains a list of all the python packages you want to install (or have already installed in case of file generated by pip), and what versions they're at.

To generate a requirements file, go into your original virtualenv, and run:

pip freeze > requirements.txt

This will generate the requirements.txt file for you. If you open that file up in your favorite text editor, you'll see something like:

Django==1.3
Fabric==1.0.1
etc...

Now, edit the line that says Django==x.x to say Django==1.3 (or whatever version you want to install in your new virtualenv).

Lastly, activate your new virtualenv, and run:

pip install -r requirements.txt

And pip will automatically download and install all the python modules listed in your requirements.txt file, at whatever versions you specified!




ANSWER 2

Score 39


Another option is to use virtualenv-clone package:

A script for cloning a non-relocatable virtualenv.




ANSWER 3

Score 18


virtualenvwrapper provides a command to duplicate virtualenv

cpvirtualenv ENVNAME [TARGETENVNAME]



ANSWER 4

Score 12


If you are using Anaconda you can just run:

conda create --name myclone --clone myenv

This will copy myenv to the newly created environment called myclone.