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Conda-Pack Windows Instructions

Packing Conda Environments

You must be using conda for this approach. You will need conda installed on the Source machine and the Target machine. The Source machine must have an internet connection, the Target does not. The OS in both environments must match; no going from macOS to Win10 for example.

1. (Source) Install conda-pack in your base python environment.

conda install -c conda-forge conda-pack

2. (Source) Create a new environment that you'll replicate.

Note: I've had some issues with python 3.8 envs, so try 3.7 in your new environment. See here.

conda create -n env-to-pack python=3.7

3. (Source) Install conda packages into your new environment.

Note: Prefer packages from conda as much as possible. Packages from pip are not guaranteed to work.

conda activate env-to-pack
conda install <whatever>

4. (Source) Switch back to base environment and pack up your environment.

conda activate base
conda pack -n env-to-pack -o packed-env.tar.gz

5. (Source > Target) Copy the packed-env.tar.gz from the source environment to the target environment.

6. (Target) Unpack the tar.gz environment file to where you want the environment to go

Note: On Windows, you can do this with 7-zip. It'll take one step to decompress the gzip and another step to unpack the tar.

7. (Target) Unpack the environment and activate it

Note: Be sure you're using standard Command Prompt (cmd.exe) on Windows, not Anaconda Prompt or PowerShell; those shells don't correctly add the right files to PATH.

cd unpacked-environment
.\Scripts\activate.bat
.\Scripts\conda-unpack.exe

8. (Target) Run Python in your unpacked-environment

The prompt should tell you that you're in the right environment after the last step, so you should see something like the following, which will allow you to then run python within this environment

(unpacked-env-name) C:\Some\Path\Where\Your\Environment\Is> python
@lucheroni
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lucheroni commented Aug 1, 2021

Hello.

I tried the sequence indicated. Win10 pro to Win10 pro, laptops with very similar hardware. Environment to be tranferred prepared with python 3.7.
-> The target laptop installation has a space in the username <-, and Anaconda installed.

I'm able to get to

cd unpacked-environment
.\Scripts\activate.bat

but when I issue

.\Scripts\conda-unpack.exe

I get

failed to create process

Is that to be expected? Should I give up with conda-pack in my case?

@pmbaumgartner
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pmbaumgartner commented Aug 8, 2021

@3BBUAE
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3BBUAE commented Aug 9, 2021

I think things should be fine, even if that step fails. Were you able to use the environment?

On Sun, Aug 1, 2021, 5:36 AM lucheroni @.> wrote: @.* commented on this gist. ------------------------------ Hello. I tried the sequence indicated. Win10 pro to Win10 pro, laptops with very similar hardware. Environment to be tranferred prepared with with python 3.7. -> The target laptop installation has a space in the username <-, and Anaconda installed. I'm able to get to cd unpacked-environment .\Scripts\activate.bat but when I issue .\Scripts\conda-unpack.exe I get failed to create process Is that to be expected? Should I give up with conda-pack in my case? — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub https://gist.github.com/2626ce24adb7f4030c0075d2b35dda32#gistcomment-3838571, or unsubscribe https://github.com/notifications/unsubscribe-auth/ABG65TKOBCFF7Y6FZ2PNKQ3T2UITDANCNFSM5BK6OTQQ .

I get the same error, after trying to use the conda-unpack.exe i get failed to create process.

@jganseman
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jganseman commented Dec 21, 2021

This Gist has saved me today - thanks! Voting to integrate this in the conda-pack docs :)

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