I wanted to add a form to my flask-based website, but I got the following error message: Apr 24 21:18:04 nixos uwsgi[2261]: from flask_wtf import FlaskForm Apr 24 21:18:04 nixos uwsgi[2261]: ModuleNotFoundError: No module named 'flask_wtf' Here are the installed packages part of my the configuration.nix file: environment.systemPackages = with pkgs; [ # vim # Do not forget to add an editor to edit configuration.nix! The Nano editor is also installed by default. git wget pkgs.notepadqq pkgs.nginx pkgs.postgresql_16 pkgs.pgloader pkgs.libgcc pkgs.python312 pkgs.python312Packages.virtualenv pkgs.uwsgi pkgs.mariadb_114 pkgs.kdePackages.okular pkgs.libreoffice-qt-fresh pkgs.spotify pkgs.fwupd ]; I intended to install any further python packages in virtualenv, but flask_wtf seems to be not recognised. Running the command "pip freeze" outside of my virtualenv gives the following response: [user@nixos:~]$ pip freeze The program 'pip' is not in your PATH. It is provided by several packages. You can make it available in an ephemeral shell by typing one of the following: nix-shell -p cope nix-shell -p python311Packages.pip nix-shell -p python312Packages.pip Running the command "pip freeze" in the virtualenv gives the following response: (folder_env) [user@nixos:/var/www/folder/folder_env/bin]$ pip freeze blinker==1.9.0 click==8.1.8 Flask==3.1.0 Flask-WTF==1.2.2 itsdangerous==2.2.0 Jinja2==3.1.6 MarkupSafe==3.0.2 psycopg2-binary==2.9.10 setuptools==78.1.0 Werkzeug==3.1.3 wheel==0.45.1 WTForms==3.2.1 As you see, Flask-WTF is installed here. Why is flask_wtf not found if it is installed? How should I resolve this? Thank you for your advice. Continue reading...
