从 conda 为特定版本的 python 安装包

Question

I'm relatively new on dealing with python libraries so it might be a stupid question but here is the detailed problem:

I'm working on Linux and trying to use a python program ( ORF-rater ) using python 3.7. Unfortunately, when I run the program, I get the following error:

ImportError: cannot import name 'maketrans' from 'string' 

which I think is related to this issue . Therefore I want to use another version of Python (3.4 or 2.7 for instance) that will support this maketrans .

The program that I'm using also uses the Python package plastid , which I installed using Conda conda install -c bioconda plastid which I guess worked well.

However, it installed the package on python 3.7 only, and I can't find a way to install for python 3.4 (I tried others things as pip3.4 install plastid , but it did not work, most likely because I'm working on an university server and I don't have permission to do it).

In brief, how do I install a package using Conda for a specific version of Python (3.4)?

Answer 1

The following code creates an environment with a specific python version (2.7 since 3.4 was not an option ), then you activate it and install the package you need.

conda create -n test python=2.7
conda activate test 
conda install -c bioconda plastid
python

Then in Python, I did the following and got no errors

from string import maketrans