Poetry2nix with numpy but encountered errors "libz.so.1: cannot open shared object file: No such file or directory"

I trying to use poetry with python project using nix flake, after try use template of poetry2nix from following commands:

nix flake init --template github:nix-community/poetry2nix

But after add numpy and import it in a python file, I encounter this error:

Traceback (most recent call last):
  File "/home/icslab/.cache/pypoetry/virtualenvs/comparing-pliAX9us-py3.11/lib/python3.11/site-packages/numpy/core/__init__.py", line 24, in <module>
    from . import multiarray
  File "/home/icslab/.cache/pypoetry/virtualenvs/comparing-pliAX9us-py3.11/lib/python3.11/site-packages/numpy/core/multiarray.py", line 10, in <module>
    from . import overrides
  File "/home/icslab/.cache/pypoetry/virtualenvs/comparing-pliAX9us-py3.11/lib/python3.11/site-packages/numpy/core/overrides.py", line 8, in <module>
    from numpy.core._multiarray_umath import (
ImportError: libz.so.1: cannot open shared object file: No such file or directory

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/icslab/.cache/pypoetry/virtualenvs/comparing-pliAX9us-py3.11/lib/python3.11/site-packages/numpy/__init__.py", line 130, in <module>
    from numpy.__config__ import show as show_config
  File "/home/icslab/.cache/pypoetry/virtualenvs/comparing-pliAX9us-py3.11/lib/python3.11/site-packages/numpy/__config__.py", line 4, in <module>
    from numpy.core._multiarray_umath import (
  File "/home/icslab/.cache/pypoetry/virtualenvs/comparing-pliAX9us-py3.11/lib/python3.11/site-packages/numpy/core/__init__.py", line 50, in <module>
    raise ImportError(msg)


Importing the numpy C-extensions failed. This error can happen for
many reasons, often due to issues with your setup or how NumPy was

We have compiled some common reasons and troubleshooting tips at:


Please note and check the following:

  * The Python version is: Python3.11 from "/home/icslab/.cache/pypoetry/virtualenvs/comparing-pliAX9us-py3.11/bin/python"
  * The NumPy version is: "1.26.1"

and make sure that they are the versions you expect.
Please carefully study the documentation linked above for further help.

Original error was: libz.so.1: cannot open shared object file: No such file or directory

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/home/icslab/workplaces/journal/comparing/main.py", line 1, in <module>
    import numpy
  File "/home/icslab/.cache/pypoetry/virtualenvs/comparing-pliAX9us-py3.11/lib/python3.11/site-packages/numpy/__init__.py", line 135, in <module>
    raise ImportError(msg) from e
ImportError: Error importing numpy: you should not try to import numpy from
        its source directory; please exit the numpy source tree, and relaunch
        your python interpreter from there.

All things I tried:

poetry init
poetry add numpy
poetry run python main.py


  description = "Application packaged using poetry2nix";

  inputs = {
    flake-utils.url = "github:numtide/flake-utils";
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
    poetry2nix = {
      url = "github:nix-community/poetry2nix";
      inputs.nixpkgs.follows = "nixpkgs";

  outputs = { self, nixpkgs, flake-utils, poetry2nix }:
    flake-utils.lib.eachDefaultSystem (system:
        # see https://github.com/nix-community/poetry2nix/tree/master#api for more functions and examples.
        pkgs = nixpkgs.legacyPackages.${system};
        inherit (poetry2nix.lib.mkPoetry2Nix { inherit pkgs; }) mkPoetryApplication;
        packages = {
          myapp = mkPoetryApplication { projectDir = self; };
          default = self.packages.${system}.myapp;

        devShells.default = pkgs.mkShell {
          packages = [ pkgs.poetry ];

PS: I try search the solution from this post, they suggest using mkPoetryEnv, but I don’t know how to edit flake.nix to do this thing.

I tried to install zlib and solved this problem