Merge branch 'python' into array_tools

doc/sphinx/installation.rst

@@ -74,6 +74,7 @@ To compile |es| on Ubuntu 20.04 LTS, install the following dependencies:
     sudo apt install build-essential cmake cython3 python3-numpy \
       libboost-all-dev openmpi-common fftw3-dev libhdf5-dev libhdf5-openmpi-dev \
       python3-opengl libgsl-dev
+    pip3 install --user 'scipy>=1.4.0'
 
 Optionally the ccmake utility can be installed for easier configuration:
 
@@ -87,9 +88,8 @@ are required:
 .. code-block:: bash
 
     sudo apt install python3-matplotlib python3-pint ipython3 jupyter-notebook
-    pip3 install --user 'jupyter_contrib_nbextensions==0.5.1' 'python3-scipy>=1.4.0' \
-                        'sphinx>=1.6.7,!=2.1.0,!=3.0.0' 'sphinxcontrib-bibtex>=0.3.5' \
-                        'MDAnalysis>=1.0.0'
+    pip3 install --user 'jupyter_contrib_nbextensions==0.5.1' 'MDAnalysis>=1.0.0' \
+                        'sphinx>=1.6.7,!=2.1.0,!=3.0.0' 'sphinxcontrib-bibtex>=0.3.5'
     jupyter contrib nbextension install --user
     jupyter nbextension enable rubberband/main
     jupyter nbextension enable exercise2/main
@@ -122,6 +122,29 @@ required to compile |es| on other Linux distributions:
 * `Debian <https://github.com/espressomd/docker/blob/master/docker/Dockerfile-debian>`_
 * `OpenSUSE <https://github.com/espressomd/docker/blob/master/docker/Dockerfile-opensuse>`_
 
+.. _Installing requirements on Windows via WSL:
+
+Installing requirements on Windows via WSL
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+To run |es| on Windows, use the Linux subsystem. For that you need to
+
+* follow `these instructions <https://docs.microsoft.com/en-us/windows/wsl/install-win10>`__ to install Ubuntu
+* start Ubuntu (or open an Ubuntu tab in `Windows Terminal <https://www.microsoft.com/en-us/p/windows-terminal/9n0dx20hk701>`_ )
+* execute
+
+  .. code-block:: bash
+
+      sudo apt update
+      sudo apt install python3-pip
+
+  to prepare the installation of dependencies
+
+* optional step: If you have a NVIDIA graphics card available and want to make
+  use of |es|'s GPU acceleration, follow `these instructions <https://docs.nvidia.com/cuda/wsl-user-guide/index.html#ch03a-setting-up-cuda>`__
+  to set up CUDA.
+* follow the instructions for :ref:`Installing requirements on Ubuntu Linux`
+
 
 .. _Installing requirements on Mac OS X: