File size: 1,559 Bytes
f44b640 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 | with import <nixpkgs> { };
let
pythonPackages = python3Packages;
in
pkgs.mkShell rec {
name = "impurePythonEnv";
venvDir = "./.venv";
myPythonPackages = with pythonPackages; [
# A Python interpreter including the 'venv' module is required to bootstrap
# the environment.
python
# This executes some shell code to initialize a venv in $venvDir before
# dropping into the shell
venvShellHook
# Those are dependencies that we would like to use from nixpkgs, which will
# add them to PYTHONPATH and thus make them accessible from within the venv.
pip
numpy
pandas
beautifulsoup4
lxml
openpyxl
requests
];
buildInputs = [
myPythonPackages
# In this particular example, in order to compile any binary extensions they may
# require, the Python modules listed in the hypothetical requirements.txt need
# the following packages to be installed locally:
taglib
openssl
git
libxml2
libxslt
libzip
zlib
gcc-unwrapped.lib
];
# Run this command, only after creating the virtual environment
postVenvCreation = ''
unset SOURCE_DATE_EPOCH
# check if there is a requirements.txt file
if test -f requirements.txt; then
# install the requirements
pip install -r requirements.txt
fi
'';
# Now we can execute any commands within the virtual environment.
# This is optional and can be left out to run pip manually.
postShellHook = ''
# allow pip to install wheels
unset SOURCE_DATE_EPOCH
fish
'';
}
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