requirements can be passed to conda via the --file argument. • Pip accepts a list of Python packages with -r or --requirements. • Conda env will export or create environments based on a file with conda and pip > explicit.txt CONDA_PKGS_DIRS=$(mktemp -d) conda create --dry-run MATCHSPECS_GO_HERE --json | jq -r '. ˓→actions.FETCH[] | .url + "#" + .md5' >> explicit.txt The syntax in Windows only needs some small txt set "CONDA_PKGS_DIRS=%TMP%\conda-%RANDOM%" conda create --dry-run MATCHSPECS_GO_HERE --json | jq -r '.actions.FETCH[] | .url + "#"␣ ˓→+ .md5' >> explicit.txt set "CONDA_PKGS_DIRS=" The resulting explicit

requirements can be passed to conda via the --file argument. • Pip accepts a list of Python packages with -r or --requirements. • Conda env will export or create environments based on a file with conda and pip > explicit.txt CONDA_PKGS_DIRS=$(mktemp -d) conda create --dry-run MATCHSPECS_GO_HERE --json | jq -r '. ˓→actions.FETCH[] | .url + "#" + .md5' >> explicit.txt The syntax in Windows only needs some small txt set "CONDA_PKGS_DIRS=%TMP%\conda-%RANDOM%" conda create --dry-run MATCHSPECS_GO_HERE --json | jq -r '.actions.FETCH[] | .url + "#"␣ ˓→+ .md5' >> explicit.txt set "CONDA_PKGS_DIRS=" The resulting explicit

requirements can be passed to conda via the --file argument. • Pip accepts a list of Python packages with -r or --requirements. • Conda env will export or create environments based on a file with conda and pip > explicit.txt CONDA_PKGS_DIRS=$(mktemp -d) conda create --dry-run MATCHSPECS_GO_HERE --json | jq -r '. ˓→actions.FETCH[] | .url + "#" + .md5' >> explicit.txt The syntax in Windows only needs some small txt set "CONDA_PKGS_DIRS=%TMP%\conda-%RANDOM%" conda create --dry-run MATCHSPECS_GO_HERE --json | jq -r '.actions.FETCH[] | .url + "#"␣ ˓→+ .md5' >> explicit.txt set "CONDA_PKGS_DIRS=" The resulting explicit

requirements can be passed to conda via the --file argument. • Pip accepts a list of Python packages with -r or --requirements. • Conda env will export or create environments based on a file with conda and pip com/pkgs/free/osx-64 https://repo.anaconda.com/pkgs/free/noarch https://repo.anaconda.com/pkgs/r/osx-64 https://repo.anaconda.com/pkgs/r/noarch package cache : /Users/demo/dev/conda/devenv/pkgs /Users/demo/.conda/pkgs edited directly. Below is an example .condarc file: # This is a sample .condarc file. # It adds the r Anaconda.org channel and enables # the show_channel_urls option. # channel locations. These override

requirements can be passed to conda via the --file argument. • Pip accepts a list of Python packages with -r or --requirements. • Conda env will export or create environments based on a file with conda and pip com/pkgs/free/osx-64 https://repo.anaconda.com/pkgs/free/noarch https://repo.anaconda.com/pkgs/r/osx-64 https://repo.anaconda.com/pkgs/r/noarch package cache : /Users/demo/dev/conda/devenv/pkgs /Users/demo/.conda/pkgs edited directly. Below is an example .condarc file: # This is a sample .condarc file. # It adds the r Anaconda.org channel and enables # the show_channel_urls option. # channel locations. These override

requirements can be passed to conda via the --file argument. • Pip accepts a list of Python packages with -r or --requirements. • Conda env will export or create environments based on a file with conda and pip com/pkgs/free/osx-64 https://repo.anaconda.com/pkgs/free/noarch https://repo.anaconda.com/pkgs/r/osx-64 https://repo.anaconda.com/pkgs/r/noarch package cache : /Users/demo/dev/conda/devenv/pkgs /Users/demo/.conda/pkgs edited directly. Below is an example .condarc file: # This is a sample .condarc file. # It adds the r Anaconda.org channel and enables # the show_channel_urls option. # channel locations. These override

requirements can be passed to conda via the --file argument. • Pip accepts a list of Python packages with -r or --requirements. • Conda env will export or create environments based on a file with conda and pip com/pkgs/free/osx-64 https://repo.anaconda.com/pkgs/free/noarch https://repo.anaconda.com/pkgs/r/osx-64 https://repo.anaconda.com/pkgs/r/noarch package cache : /Users/demo/dev/conda/devenv/pkgs /Users/demo/.conda/pkgs edited directly. Below is an example .condarc file: # This is a sample .condarc file. # It adds the r Anaconda.org channel and enables # the show_channel_urls option. # channel locations. These override

requirements can be passed to conda via the --file argument. • Pip accepts a list of Python packages with -r or --requirements. • Conda env will export or create environments based on a file with conda and pip com/pkgs/free/osx-64 https://repo.anaconda.com/pkgs/free/noarch https://repo.anaconda.com/pkgs/r/osx-64 https://repo.anaconda.com/pkgs/r/noarch package cache : /Users/demo/dev/conda/devenv/pkgs /Users/demo/.conda/pkgs edited directly. Below is an example .condarc file: # This is a sample .condarc file. # It adds the r Anaconda.org channel and enables # the show_channel_urls option. # channel locations. These override

matches 0 or more characters in the version string. In terms of regular expressions, it is the same as r.*````. EXAMPLE: 1.0|1.4* matches 1.0, 1.4 and 1.4.1b2, but not 1.2. – <, >, <=, >=, == and != are Extended environment with conda or pip. Non-Python de- pendencies Manages non-Python dependencies (R, Perl, arbitrary executables). Tracking depen- dencies Tracks binary dependencies explicitly. Why recommend numpy=1.15 or, even better, numpy=1.15.4. – If you are using R, instead of specifying only r-essentials, specify r-base=3.5 r-essentials. • Feeling frustrated with “verifying transaction” and also

matches 0 or more characters in the version string. In terms of regular expressions, it is the same as r.*````. EXAMPLE: 1.0|1.4* matches 1.0, 1.4 and 1.4.1b2, but not 1.2. – <, >, <=, >=, == and != are Extended environment with conda or pip. Non-Python de- pendencies Manages non-Python dependencies (R, Perl, arbitrary executables). Tracking depen- dencies Tracks binary dependencies explicitly. Why recommend numpy=1.15 or, even better, numpy=1.15.4. – If you are using R, instead of specifying only r-essentials, specify r-base=3.5 r-essentials. • Feeling frustrated with “verifying transaction” and also