Add instructions with deactivated SSL and without TF

instructions_windows_weai_nossl_notf.tex

+\RequirePackage{luatex85}
+\documentclass[12pt]{scrartcl}
+\usepackage[english]{babel}
+
+\usepackage{xcolor}
+\usepackage{graphicx}
+
+\usepackage{listings}
+\lstset{basicstyle=\ttfamily,
+        escapeinside={\#*}{*},   % escape to LaTeX
+        columns=flexible,        % allow copying
+        keepspaces=true,
+}
+
+\usepackage{tikz}
+\usetikzlibrary{backgrounds}
+\usetikzlibrary{calc}
+\usetikzlibrary{arrows.meta}
+
+\newcommand*\keystroke[1]{%
+  \begin{tikzpicture}[baseline=(key.base), very thin, line cap=round, black, rounded corners=0pt]%
+    \node [draw, fill=white, fill opacity=1, rectangle, rounded corners=2pt, inner sep=1pt, minimum size=0.8em, font=\scriptsize\sffamily] (key) {#1};
+
+    \begin{scope}[on background layer]
+      \draw [rounded corners=1pt, fill=white] ($ (key.north west) + (-2pt, 2pt) $) rectangle ($ (key.south east) + (2pt, -2pt) $);
+
+      \fill [gray!60] ($ (key.south west) + (2pt, 0.1pt) $) -- ($ (key.south west) + (-1pt, -2pt) $)
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+
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+                  -- ($ (key.north east) + (2pt, 1pt) $)    -- ($ (key.north east) + (-0.1pt, -2pt) $) -- cycle;
+    \end{scope}
+
+    \draw ($ (key.north west) + (0.1pt, -2pt) $) -- ($ (key.north west) + (-2pt, 1pt) $);
+    \draw ($ (key.north west) + (2pt, -0.1pt) $) -- ($ (key.north west) + (-1pt, 2pt) $);
+
+    \draw ($ (key.north east) + (-0.1pt, -2pt) $) -- ($ (key.north east) + (2pt, 1pt) $);
+    \draw ($ (key.north east) + (-2pt, -0.1pt) $) -- ($ (key.north east) + (1pt, 2pt) $);
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+    \draw ($ (key.south west) + (0.1pt, 2pt) $) -- ($ (key.south west) + (-2pt, -1pt) $);
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+    \draw ($ (key.south east) + (-0.1pt, 2pt) $) -- ($ (key.south east) + (2pt, -1pt) $);
+    \draw ($ (key.south east) + (-2pt, 0.1pt) $) -- ($ (key.south east) + (1pt, -2pt) $);
+  \end{tikzpicture}%
+}
+
+\newcommand{\keyenter}{\keystroke{Enter\,\tikz [baseline=-2mm, rounded corners=0pt] \draw [semithick, -{Triangle[length=1mm, width=1mm]}] (0, 0) -- ++(down:1mm) -- ++(left:2mm);}}
+
+\usepackage[colorlinks=true,urlcolor=blue,unicode=true,pdfusetitle]{hyperref}
+\usepackage[color=blue, author={Christof Kaufmann}]{attachfile2} % load after hyperref to avoid option clash from unicode=true
+
+\title{Installation of Python via Mambaforge for Windows}
+\date{September 2023}
+\author{Christof Kaufmann}
+
+% one infinite page, https://tex.stackexchange.com/a/19241/115883
+\usepackage[paperheight=\maxdimen]{geometry}
+\usepackage[active,tightpage]{preview}
+\renewcommand{\PreviewBorder}{1ex}
+
+\edef\myindent{\the\parindent}% store parindent value
+
+% preserve parindent, https://tex.stackexchange.com/a/98214
+\usepackage{etoolbox}
+\edef\keptparindent{\the\parindent}
+\patchcmd{\preview}
+  {\ignorespaces} %%% \preview ends with \ignorespaces
+  {\parindent\keptparindent\ignorespaces}
+  {}{}
+\begin{document}
+\begin{preview}
+\vspace*{-3em}
+\maketitle
+
+
+\noindent
+\textit{Note: If you already have installed Python before, it might work for this course. You can skip to Section~\ref{sec:test} to test your installation using the attached test script. If it is not working, but it is based on conda (Anaconda, Miniconda, Miniforge, Mambaforge), you might skip to Section~\ref{sec:packages}, but add a \lstinline|--channel conda-forge| to the \lstinline|mamba create| and \lstinline|mamba install| commands. If it is not based on conda (plain Python) and you want to keep it, you could also install Mambaforge parallel to your installation. Usually it does not interfere with existing installations.}
+
+\section{Mambaforge}
+
+First, we install \textit{Mambaforge}. It is a package manager for conda packages and by default set up to use the \texttt{conda-forge} repository. Download the installer from here
+\url{https://github.com/conda-forge/miniforge/releases/latest/download/Mambaforge-Windows-x86_64.exe}
+and install Mambaforge. We recommend to leave the default settings especially to install Miniforge just for your user (\textit{Just Me}). This does not require admin rights. When the installation has finished, close the window and continue on command line.
+\smallskip
+
+\noindent
+\begin{minipage}{0.6\linewidth}
+%   \setlength{\parindent}{\myindent}
+  For that start \textit{Miniforge Prompt} from the start menu.
+  In the prompt the \texttt{base} environment should be activated, which looks like this for a user \textit{john}:
+\end{minipage}%
+\hfill%
+\begin{minipage}{0.37\linewidth}
+  \includegraphics[width=\linewidth]{images/mambaforge-start-menu-prompt}
+\end{minipage}%
+\begin{lstlisting}[gobble=2]
+  #*\color{gray}(base) C:\textbackslash Users\textbackslash john>*
+\end{lstlisting}
+Now we are ready to install the packages we need.
+
+
+
+\section{Packages}
+\label{sec:packages}
+
+The following step is special in your network. Run this command to get \textit{conda} and \textit{mamba} to ignore SSL verification. We will switch it back on later.
+\begin{lstlisting}[gobble=2, basicstyle=\ttfamily\footnotesize]
+  #*\color{gray}(base) C:\textbackslash Users\textbackslash john>*conda config --set ssl_verify no
+\end{lstlisting}
+Now let's create a new environment called \textit{weai} and add the packages we need to it (copy \& paste black text lines):
+\begin{lstlisting}[gobble=2, basicstyle=\ttfamily\footnotesize]
+  #*\color{gray}(base) C:\textbackslash Users\textbackslash john>*mamba create -n weai python=3.10 spyder jupyter notebook ^
+                                            ipympl mypy matplotlib seaborn ^
+                                            pandas pyarrow openpyxl odfpy ^
+                                            scikit-learn
+\end{lstlisting}
+You will get a list of packages and can confirm with \keyenter. Installation takes a while. \textit{If it does not work because of SSL verification, try again from your home network.}
+Now set up SSL verification again:
+\begin{lstlisting}[gobble=2]
+  #*\color{gray}(weai) C:\textbackslash Users\textbackslash john>*conda config --set ssl_verify yes
+\end{lstlisting}
+If you need to install further packages later on, you might have to switch it off again, temporarily.
+
+
+
+\section{IDE}
+\label{sec:test}
+
+\begin{minipage}{0.6\linewidth}
+  Next, we start Spyder from the start menu. The entry is named \textit{Spyder (weai)}, since we installed Spyder into the \textit{weai} environment.
+\end{minipage}%
+\hfill%
+\begin{minipage}{0.37\linewidth}
+  \vspace{-3em}
+  \includegraphics[width=\linewidth]{images/mambaforge-start-menu-spyder}
+\end{minipage}%
+
+\noindent
+The Spyder window opens now. Set the graphics backend to \textit{Automatic}, as shown here:
+\vspace{-0.5ex}
+
+\noindent
+\includegraphics[width=\linewidth]{images/spyder-backend}
+\vspace{-1.5em} % due to some transparent border in the image
+
+Let's test the installation. Open the test script \texttt{scatterplot-matrix.py} (\textattachfile{attachments/scatterplot-matrix.py}{attachment}|\href{https://gitlab.cvh-server.de/ckaufmann/install-python-tensorflow-gym/-/raw/master/attachments/scatterplot-matrix.py?inline=false}{web}) and run it by pressing \keystroke{F5} or clicking on the green play button or by using the menu \textit{Run} $\rightarrow$ \textit{Run} and confirm with \textit{Run}.
+\vspace{-1ex}
+
+\noindent
+\includegraphics[width=\linewidth]{images/scatterplot-matrix}
+\vspace{-1.5em} % due to some transparent border in the image
+
+\noindent
+The test script will plot a scatter plot matrix in a new window. This means Python has been installed successfully.
+
+\end{preview}
+\end{document}
+
+
+% \begin{verbbox}
+% conda install -c anaconda tensorflow mypy pystan swig geopandas descartes tqdm ffmpeg
+% \end{verbbox}
+% \resizebox{\linewidth}{!}{\theverbbox}