\documentclass[10pt,a4paper]{article} % Packages \usepackage{fancyhdr} % For header and footer \usepackage{multicol} % Allows multicols in tables \usepackage{tabularx} % Intelligent column widths \usepackage{tabulary} % Used in header and footer \usepackage{hhline} % Border under tables \usepackage{graphicx} % For images \usepackage{xcolor} % For hex colours %\usepackage[utf8x]{inputenc} % For unicode character support \usepackage[T1]{fontenc} % Without this we get weird character replacements \usepackage{colortbl} % For coloured tables \usepackage{setspace} % For line height \usepackage{lastpage} % Needed for total page number \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{Theo666} \pdfinfo{ /Title (python-chap-6.pdf) /Creator (Cheatography) /Author (Theo666) /Subject (Python\_Chap\_6 Cheat Sheet) } % Lengths and widths \addtolength{\textwidth}{6cm} \addtolength{\textheight}{-1cm} \addtolength{\hoffset}{-3cm} \addtolength{\voffset}{-2cm} \setlength{\tabcolsep}{0.2cm} % Space between columns \setlength{\headsep}{-12pt} % Reduce space between header and content \setlength{\headheight}{85pt} % If less, LaTeX automatically increases it \renewcommand{\footrulewidth}{0pt} % Remove footer line \renewcommand{\headrulewidth}{0pt} % Remove header line \renewcommand{\seqinsert}{\ifmmode\allowbreak\else\-\fi} % Hyphens in seqsplit % This two commands together give roughly % the right line height in the tables \renewcommand{\arraystretch}{1.3} \onehalfspacing % Commands \newcommand{\SetRowColor}[1]{\noalign{\gdef\RowColorName{#1}}\rowcolor{\RowColorName}} % Shortcut for row colour \newcommand{\mymulticolumn}[3]{\multicolumn{#1}{>{\columncolor{\RowColorName}}#2}{#3}} % For coloured multi-cols \newcolumntype{x}[1]{>{\raggedright}p{#1}} % New column types for ragged-right paragraph columns \newcommand{\tn}{\tabularnewline} % Required as custom column type in use % Font and Colours \definecolor{HeadBackground}{HTML}{333333} \definecolor{FootBackground}{HTML}{666666} \definecolor{TextColor}{HTML}{333333} \definecolor{DarkBackground}{HTML}{79B352} \definecolor{LightBackground}{HTML}{F6FAF4} \renewcommand{\familydefault}{\sfdefault} \color{TextColor} % Header and Footer \pagestyle{fancy} \fancyhead{} % Set header to blank \fancyfoot{} % Set footer to blank \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}} } \end{tabulary} \columnbreak \begin{tabulary}{11cm}{L} \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{Python\_Chap\_6 Cheat Sheet}}}} \\ \normalsize{by \textcolor{DarkBackground}{Theo666} via \textcolor{DarkBackground}{\uline{cheatography.com/193738/cs/40342/}}} \end{tabulary} \end{multicols}} \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}Theo666 \\ \uline{cheatography.com/theo666} \\ \end{tabulary} \vfill \columnbreak \begin{tabulary}{5.8cm}{L} \SetRowColor{FootBackground} \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}} \\ \vspace{-2pt}Published 25th September, 2023.\\ Updated 17th September, 2023.\\ Page {\thepage} of \pageref{LastPage}. \end{tabulary} \vfill \columnbreak \begin{tabulary}{5.8cm}{L} \SetRowColor{FootBackground} \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Sponsor}} \\ \SetRowColor{white} \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}{Instructions break \& continue}} \tn \SetRowColor{white} \mymulticolumn{1}{x{8.4cm}}{The {\bf{break}} statement is used to terminate the loop immediately \newline % Row Count 2 (+ 2) The {\bf{continue}} statement is used to skip the current iteration of the loop and move on to the next iteration. \newline % Row Count 5 (+ 3) Both can be used with {\bf{for}} and {\bf{while}} loops.% Row Count 6 (+ 1) } \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}{Test with serveral conditions}} \tn \SetRowColor{LightBackground} \mymulticolumn{1}{x{8.4cm}}{\# if-elif-else \newline if condition\_1 : \newline \#bloc of instruction \newline elif condition\_2: \newline \#bloc of instruction \newline elif condition\_3: \newline \#bloc of instruction: \newline else: \newline \#bloc of instruction} \tn \hhline{>{\arrayrulecolor{DarkBackground}}-} \SetRowColor{LightBackground} \mymulticolumn{1}{x{8.4cm}}{The if-elif-else statement : the code under the first true condition will be executed, and the rest of the conditions will be skipped.} \tn \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{8.4cm}{x{2.736 cm} x{2.736 cm} x{2.128 cm} } \SetRowColor{DarkBackground} \mymulticolumn{3}{x{8.4cm}}{\bf\textcolor{white}{Multiple Tests}} \tn % Row 0 \SetRowColor{LightBackground} all({[}x, y, z{]}) & x and y and z & x or y or z \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} (x or y) and z & (x and y) or z & etc \tn % Row Count 2 (+ 1) \hhline{>{\arrayrulecolor{DarkBackground}}---} \SetRowColor{LightBackground} \mymulticolumn{3}{x{8.4cm}}{those operators usually combine with if and while} \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}{Value Tests on Floats}} \tn \SetRowColor{white} \mymulticolumn{1}{x{8.4cm}}{Since Python stores the numerical values of floats as floating-point numbers (hence their name!), this leads to certain limitations. For example, \newline % Row Count 3 (+ 3) `(3 - 2.7) == 0.3` returns False, \newline % Row Count 4 (+ 1) `3 - 2.7` returns 2.999...8. \newline % Row Count 5 (+ 1) Tips: For the reasons mentioned above, you should never test if a float is equal to a certain value. The best practice is to check if a float is within a range with a certain precision. \newline % Row Count 9 (+ 4) \textgreater{}\textgreater{}\textgreater{} delta = 0.0001 \newline % Row Count 10 (+ 1) \textgreater{}\textgreater{}\textgreater{} var = 3.0 - 2.7 \newline % Row Count 11 (+ 1) \textgreater{}\textgreater{}\textgreater{} 0.3 - delta \textless{} var \textless{} 0.3 + delta \newline % Row Count 12 (+ 1) True \newline % Row Count 13 (+ 1) \textgreater{}\textgreater{}\textgreater{} abs(var - 0.3) \textless{} delta \newline % Row Count 14 (+ 1) True% Row Count 15 (+ 1) } \tn \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} % That's all folks \end{multicols*} \end{document}