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% Packages
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\usepackage{seqsplit}           % Splits long words.
%\usepackage{opensans}          % Can't make this work so far. Shame. Would be lovely.
\usepackage[normalem]{ulem}     % For underlining links
% Most of the following are not required for the majority
% of cheat sheets but are needed for some symbol support.
\usepackage{amsmath}            % Symbols
\usepackage{MnSymbol}           % Symbols
\usepackage{wasysym}            % Symbols
%\usepackage[english,german,french,spanish,italian]{babel}              % Languages

% Document Info
\author{ch1ph0rst (ch1ph0rst)}
\pdfinfo{
  /Title (objektorientierte-programmierung-mit-python.pdf)
  /Creator (Cheatography)
  /Author (ch1ph0rst (ch1ph0rst))
  /Subject (Objektorientierte Programmierung mit Python Cheat Sheet)
}

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% This two commands together give roughly
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% Commands
\newcommand{\SetRowColor}[1]{\noalign{\gdef\RowColorName{#1}}\rowcolor{\RowColorName}} % Shortcut for row colour
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% Header and Footer
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\fancyhead[L]{
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{C}
    \SetRowColor{DarkBackground}
    \vspace{-7pt}
    {\parbox{\dimexpr\textwidth-2\fboxsep\relax}{\noindent
        \hspace*{-6pt}\includegraphics[width=5.8cm]{/web/www.cheatography.com/public/images/cheatography_logo.pdf}}
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\begin{tabulary}{11cm}{L}
    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{Objektorientierte Programmierung mit Python Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{ch1ph0rst (ch1ph0rst)} via \textcolor{DarkBackground}{\uline{cheatography.com/200234/cs/42326/}}}
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\fancyfoot[L]{ \footnotesize
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{LL}
  \SetRowColor{FootBackground}
  \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}}  \\
  \vspace{-2pt}ch1ph0rst (ch1ph0rst) \\
  \uline{cheatography.com/ch1ph0rst} \\
  \end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Not Yet Published.\\
   Updated 8th February, 2024.\\
   Page {\thepage} of \pageref{LastPage}.
\end{tabulary}
\vfill
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  \vspace{-5pt}
  %\includegraphics[width=48px,height=48px]{dave.jpeg}
  Measure your website readability!\\
  www.readability-score.com
\end{tabulary}
\end{multicols}}




\begin{document}
\raggedright
\raggedcolumns

% Set font size to small. Switch to any value
% from this page to resize cheat sheet text:
% www.emerson.emory.edu/services/latex/latex_169.html
\footnotesize % Small font.

\begin{multicols*}{2}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Beispiel: Klasse}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{\# Klassendefinition \newline class Human: \newline     \# Konstruktor (Initialisierung) \newline     def \_\_init\_\_(self, name, age): \newline         self.name = name \newline         self.age = age \newline          \newline     \# Methode zum Vorstellen \newline     def \_\_str\_\_(self): \newline         s = "Ich hei{\ss}e " + self.name + ".\textbackslash{}n" \newline         s += "Ich bin " + str(self.age) + " Jahre alt.\textbackslash{}n" \newline         return s \newline      \newline     \# setter-Methode zum Ändern des Attributwertes von age \newline     def set\_age(self, new\_age): \newline         self.age = new\_age \newline  \newline \# Deklaration und Initialisierung einer Human-Instanz \newline h1 = Human("Max Müller", 21) \newline  \newline \# Ändern der Wertbelegung des Attributes age vom Objekt h1 \newline h1.set\_age(22) \newline  \newline \# \_\_str\_\_-Methode wird aufgerufen \newline print(h1)} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Python Dataclasses}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{class Robot\_traditional: \newline     def \_\_init\_\_(self, model, serial\_number, manufacturer): \newline         self.model = model \newline         self.serial\_number = serial\_number \newline         self.manufacturer = manufacturer \newline  \newline \# versus \newline  \newline from dataclasses import dataclass \newline @dataclass \newline class Robot: \newline     model: str \newline     serial\_number: str \newline     manufacturer: str} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{4.24 cm} x{3.76 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Magic Methods einer Klasse}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{Operator/Aufruf}} & {\bf{Magic Method}} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
obj = Klasse() & \_\_new\_\_ und \_\_init\_\_ \tn 
% Row Count 3 (+ 2)
% Row 2
\SetRowColor{LightBackground}
+ & \seqsplit{object.\_\_add\_\_(self}, other) \tn 
% Row Count 5 (+ 2)
% Row 3
\SetRowColor{white}
- & \seqsplit{object.\_\_sub\_\_(self}, other) \tn 
% Row Count 7 (+ 2)
% Row 4
\SetRowColor{LightBackground}
str(object) oder print(object) & \seqsplit{object.\_\_str\_\_(self)} \tn 
% Row Count 9 (+ 2)
% Row 5
\SetRowColor{white}
\textless{} & \seqsplit{object.\_\_lt\_\_(self}, other) \tn 
% Row Count 11 (+ 2)
% Row 6
\SetRowColor{LightBackground}
== & \seqsplit{object.\_\_eq\_\_(self}, other) \tn 
% Row Count 13 (+ 2)
% Row 7
\SetRowColor{white}
\textgreater{}= & \seqsplit{object.\_\_ge\_\_(self}, other) \tn 
% Row Count 15 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{8.4cm}}{Die Auflistung zeigt nur eine Auswahl der zur Verfügung stehenden Methoden einer Klasse. Die gesamte Liste (eines Scopes) erh{\"a}lt man beim Aufruf von dir(object).}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Hintergrund: Magic Methods}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{Der Mechanismus: Ein Ausdruck "x + y" mit x und y als Instanzen der Klasse K, wird so ausgewertet: der Interpreter prüft die Klassendefinition von K. Wenn K eine Methode \_\_add\_\_ hat, so wird diese aufgerufen mit x .\_\_ add \_\_ (y).% Row Count 5 (+ 5)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
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\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Type Hints}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{class Position: \newline  \newline     def \_\_init\_\_(self, x: int, y: int) -\textgreater{} None: \newline         self.x = x \newline         self.y = y \newline  \newline     def \_\_add\_\_(self, other: Position) -\textgreater{} Position: \newline         return Position(self.x + other.x, self.y + other.y)} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}


% That's all folks
\end{multicols*}

\end{document}