When I tried to tell them the benefits of using virtual environments (which are created clean by default), I've been asked to try and install numpy in a virtual environment. because you need the same version of Visual Studio used to build the python install).

In fairness, they're right because any python module with native dependencies is a mess to install from sources (e.g. Using Python on Windows - Python 3.10.Someone told me they use a custom python install named Anaconda on windows because it contains a set of math packages which are difficult to install. You can learn more about the installation process and the launcher at the following page: 4. If not, you can fall back on using the py launcher plus the -m command-line option that executes a module as a script, e.g. After that, pip.exe in the “Scripts” directory should work. You have to start a new instance of CMD or PowerShell from Explorer to get the updated PATH.

Instances of CMD or PowerShell have no windows (the console window is hosted by conhost.exe), so they don’t see the “Environment” window message. The installer implements this by sending an “Environment” message to top-level windows, which causes Explorer to reload its environment. For an “all users” installation it also modifies the value of PATHEXT to append “.PY” and “.PYW”.Īfter installation, if PATH was updated, Explorer (the Windows graphical shell) should update its environment with the new value. This prepends both the installation and scripts directory to either the current-user or system PATH, depending on whether an “all users” installation is selected. The second page of the installer presents you with an option to “Add Python to environment variables”.

Install numpy