\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{curupira} \pdfinfo{ /Title (lbyl-or-eafp-how-to-deal-with-errors-in-python.pdf) /Creator (Cheatography) /Author (curupira) /Subject (LBYL or EAFP - How to deal with errors in Python? 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}{55294F} \definecolor{LightBackground}{HTML}{F4F1F4} \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{LBYL or EAFP - How to deal with errors in Python? Cheat Sheet}}}} \\ \normalsize{by \textcolor{DarkBackground}{curupira} via \textcolor{DarkBackground}{\uline{cheatography.com/187405/cs/39098/}}} \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}curupira \\ \uline{cheatography.com/curupira} \\ \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 14th June, 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{tabularx}{17.67cm}{X} \SetRowColor{DarkBackground} \mymulticolumn{1}{x{17.67cm}}{\bf\textcolor{white}{Definitions}} \tn % Row 0 \SetRowColor{LightBackground} \mymulticolumn{1}{x{17.67cm}}{{\bf{Look Before you Leap}} is a coding style more common in other languages. The main characteristic is the presence of conditional statements, or if statements. The idea is to include explicit statements, before calls, to make sure the call is going to be valid.} \tn % Row Count 6 (+ 6) % Row 1 \SetRowColor{white} \mymulticolumn{1}{x{17.67cm}}{{\bf{Easier to Ask Forgiveness than Permission}} in contrast is more pythonic. It is characterized by try and except statements, assuming that keys and attributes are valid and handling the exceptions in the except block. It seems to be more optimized in Python than the alternative.} \tn % Row Count 12 (+ 6) \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{17.67cm}{p{1.687 cm} p{1.687 cm} p{1.687 cm} } \SetRowColor{DarkBackground} \mymulticolumn{3}{x{17.67cm}}{\bf\textcolor{white}{Deciding wich one to use}} \tn % Row 0 \SetRowColor{LightBackground} \mymulticolumn{3}{x{17.67cm}}{} \tn % Row Count 0 (+ 0) \hhline{>{\arrayrulecolor{DarkBackground}}---} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{17.67cm}{x{5.061 cm} x{5.9045 cm} x{5.9045 cm} } \SetRowColor{DarkBackground} \mymulticolumn{3}{x{17.67cm}}{\bf\textcolor{white}{What do they look like}} \tn % Row 0 \SetRowColor{LightBackground} {\bf{Criteria}} & {\bf{LBYL}} & {\bf{EAFP}} \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} {\bf{Clear or easy to read}} & It's more difficult to read and sometimes puts checks in the spotligh instead of the actual purpose of the code. The exceptions may look more important than the rule. & The purpose is clear and in the foreground, while exceptions come after and are dealt with. Reads more clear and \seqsplit{straightforward}. \tn % Row Count 13 (+ 12) % Row 2 \SetRowColor{LightBackground} {\bf{Can it cause a race condition?}} & It's possible. The operation comes after the check, if a key or attribute is removed between the condition and the call, an exception can happen. & Race conditions are prevented since it is assumed that the operation is valid and the exception is dealt with if not. \tn % Row Count 24 (+ 11) % Row 3 \SetRowColor{white} {\bf{Performance}} & Performs better when the checks mostly fail, and worse when the checks mostly succeed. & If the checks fail a lot, it performs worse. Performs better if more successful operations happen. \tn % Row Count 31 (+ 7) \hhline{>{\arrayrulecolor{DarkBackground}}---} \end{tabularx} \par\addvspace{1.3em} \end{document}