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conda package manager

conda package manager is used in the Anaconda Python Distribution and Miniconda. Here are some commands that I use a lot.

Exporting an environment

By default, conda env export will show the full path prefix of your environment, which is not portable across machines, e.g.:

prefix: /home/olga/anaconda3/envs/tabula-muris-env

Without a prefix

To export without a prefix use head to remove the last two lines of the file (prefix plus empty line)

conda env export -p | head -n -2 > environment.yml

An excerpt of the output is below:

  - r-zoo=1.8_0=mro343h086d26f_0
  - readline=7.0=ha6073c6_4
  - rstudio=1.1.383=h2c9cdda_2
  - scipy=1.0.0=py35hcbbe4a2_0
  - seaborn=0.8.1=py35h04cba02_0
  - send2trash=1.5.0=py35_0

Without a prefix and without versions

Sometimes you don't want the versions either. Then you need to slice the file on the equals sign =:

conda env export | head -n -2 | cut -f 1 -d '=' > environment.yml