\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{Mario (mariofreitas)} \pdfinfo{ /Title (python-basics-lists-tuples-and-dictionaries.pdf) /Creator (Cheatography) /Author (Mario (mariofreitas)) /Subject (Python Basics - Lists, Tuples and Dictionaries 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}{105AA3} \definecolor{LightBackground}{HTML}{F0F4F9} \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 Basics - Lists, Tuples and Dictionaries Cheat Sheet}}}} \\ \normalsize{by \textcolor{DarkBackground}{Mario (mariofreitas)} via \textcolor{DarkBackground}{\uline{cheatography.com/42813/cs/13210/}}} \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}Mario (mariofreitas) \\ \uline{cheatography.com/mariofreitas} \\ \uline{\seqsplit{github}.com/MarioRaul/} \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 21st October, 2017.\\ 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{3.84 cm} x{4.16 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Lists and Tuples Syntax}} \tn % Row 0 \SetRowColor{LightBackground} `L = {[}1, 2, 3, 4, 5{]}` & Lists are created with {\bf{{[} {]}}} \tn % Row Count 2 (+ 2) % Row 1 \SetRowColor{white} `T = (10, 20, 30, 40, 50)`\{\{nobreak\}\} & Tuples are created with {\bf{( )}} \tn % Row Count 4 (+ 2) % Row 2 \SetRowColor{LightBackground} `L{[}0{]}` & Returns 1st element of {\emph{L}} (1) \tn % Row Count 6 (+ 2) % Row 3 \SetRowColor{white} `T{[}0{]}` & Returns 1st element of {\emph{T}} (10) \tn % Row Count 8 (+ 2) % Row 4 \SetRowColor{LightBackground} `L{[}1:4{]}` & Returns 2nd to 4th element of {\emph{L}} ({[}2, 3, 4{]}) \tn % Row Count 11 (+ 3) % Row 5 \SetRowColor{white} `T{[}1:4{]}` & Returns 2nd to 4th element of {\emph{T}} ((20, 30, 40)) \tn % Row Count 14 (+ 3) % Row 6 \SetRowColor{LightBackground} `L{[}0:-1:2{]}` & Returns 1st to 2nd last element of {\emph{L}} skipping one at a time ({[}1, 3{]}) \tn % Row Count 18 (+ 4) % Row 7 \SetRowColor{white} `T{[}0:-1:2{]}` & Returns 1st to 2nd last element of {\emph{L}} skipping one at a time ((10, 30)) \tn % Row Count 22 (+ 4) % Row 8 \SetRowColor{LightBackground} `L{[}1{]} = 22` & Assigns {\emph{22}} to 2nd element of {\emph{L}} (L == {[}1, 22, 3, 4, 5{]}) \tn % Row Count 25 (+ 3) % Row 9 \SetRowColor{white} `T{[}1{]} = 22` & ERROR: You can't assing anything to tuples \tn % Row Count 28 (+ 3) % Row 10 \SetRowColor{LightBackground} `L{[}0:2{]} = {[}11, 22{]}` & Assigns {\emph{11}} and {\emph{22}} to 1st and 2nd element of {\emph{L}} respectively (L == {[}11, 22, 3, 4, 5{]}) \tn % Row Count 33 (+ 5) \hhline{>{\arrayrulecolor{DarkBackground}}--} \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{Lists are mutable and Tuples are NOT mutable} \tn \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{8.4cm}{x{3.92 cm} x{4.08 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Lists - Methods}} \tn % Row 0 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{`a = {[}'a', 'b', 'c'{]}`} \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{`b = {[}1, 3, 2{]}`} \tn % Row Count 2 (+ 1) % Row 2 \SetRowColor{LightBackground} `a + b` & Returns {\emph{a}} concatenated with {\emph{b}} ({[}'a', 'b', 'c', 1, 3, 2{]}) \tn % Row Count 5 (+ 3) % Row 3 \SetRowColor{white} `'c' in a` & Returns {\emph{True}} if {\emph{'c'}} is in the list {\emph{a}} and {\emph{False}} otherwise (True) \tn % Row Count 9 (+ 4) % Row 4 \SetRowColor{LightBackground} `len(a)` & Returns the number of elements in {\emph{a}} (3) \tn % Row Count 12 (+ 3) % Row 5 \SetRowColor{white} `a.append('d')` & Appends 'd' to the end of the list {\emph{a}} (a == {[}'a', 'b', 'c', 'd'{]}) \tn % Row Count 16 (+ 4) % Row 6 \SetRowColor{LightBackground} `a.extend({[}'d', 'e', 'f'{]})\{\{nobreak\}\}` & Appends every element of the iterable to the end of {\emph{a}} (a == {[}'a', 'b', 'c', 'd', 'e', 'f'{]}) \tn % Row Count 21 (+ 5) % Row 7 \SetRowColor{white} `a.insert(1, 'd')` & Inserts {\emph{'d'}} to index {\emph{1}} of {\emph{a}} (a == {[}'a', 'd', 'b', 'c'{]}) \tn % Row Count 25 (+ 4) % Row 8 \SetRowColor{LightBackground} `a.pop()` & Returns the last element of the list and deletes it from the list. ('c') \tn % Row Count 29 (+ 4) % Row 9 \SetRowColor{white} `a.pop(1)` & Returns 2nd element of {\emph{a}} and removes it from the list ('b') \tn % Row Count 33 (+ 4) \end{tabularx} \par\addvspace{1.3em} \vfill \columnbreak \begin{tabularx}{8.4cm}{x{3.92 cm} x{4.08 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Lists - Methods (cont)}} \tn % Row 10 \SetRowColor{LightBackground} `a.remove('b')` & Removes first occurrence of {\emph{'b'}} in {\emph{a}} (a == {[}'a', 'c'{]}) \tn % Row Count 3 (+ 3) % Row 11 \SetRowColor{white} `a.clear()` & Clears the list entirely (a == {[}{]}) \tn % Row Count 5 (+ 2) % Row 12 \SetRowColor{LightBackground} `a.index('b')` & Returns the index of the first occurrence of {\emph{'b'}} (1) \tn % Row Count 8 (+ 3) % Row 13 \SetRowColor{white} `a.count('b')` & Returns the number of occurrences of {\emph{'b'}} in {\emph{a}} (1) \tn % Row Count 11 (+ 3) % Row 14 \SetRowColor{LightBackground} `b.sort()` & Returns a sorted version of {\emph{b}} ({[}1, 2, 3{]}) \tn % Row Count 14 (+ 3) % Row 15 \SetRowColor{white} `a.reverse()` & Reverses the list {\emph{a}} ({[}'c', 'b', 'a'{]}) \tn % Row Count 16 (+ 2) % Row 16 \SetRowColor{LightBackground} `a.copy()` & Returns a copy of {\emph{a}} \tn % Row Count 18 (+ 2) \hhline{>{\arrayrulecolor{DarkBackground}}--} \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{The copy() method returns a list identical to the original, but with a different ID. It means that they are allocated in different places of memory.} \tn \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{8.4cm}{x{2 cm} x{6 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Tuple - Methods}} \tn % Row 0 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{`t1 = ('a', 'b', 'c')`} \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{`t2 = (1, 2, 3)`} \tn % Row Count 2 (+ 1) % Row 2 \SetRowColor{LightBackground} `t1 + t2` & Returns a concatenated version of {\emph{t1}} and {\emph{t2}} \tn % Row Count 4 (+ 2) % Row 3 \SetRowColor{white} `2 in t2` & Returns {\emph{True}} if {\emph{2}} is in {\emph{t2}} and {\emph{False}} otherwise (True) \tn % Row Count 7 (+ 3) % Row 4 \SetRowColor{LightBackground} `len(t1)` & Returns the number of elements in {\emph{t1}} (3) \tn % Row Count 9 (+ 2) % Row 5 \SetRowColor{white} \seqsplit{`t2.count(2)`} & Returns the number of occurrences of {\emph{2}} in {\emph{t2}} (1) \tn % Row Count 11 (+ 2) % Row 6 \SetRowColor{LightBackground} \seqsplit{`t2.index(1)`} & Returns the index of the 1st occurrence of {\emph{1}} (0) \tn % Row Count 13 (+ 2) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{8.4cm}{X} \SetRowColor{DarkBackground} \mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Lists - Loops 1}} \tn \SetRowColor{LightBackground} \mymulticolumn{1}{x{8.4cm}}{a = {[}'one' , 'two', 'three'{]} \newline \newline for i in a: \newline print(i)} \tn \hhline{>{\arrayrulecolor{DarkBackground}}-} \SetRowColor{LightBackground} \mymulticolumn{1}{x{8.4cm}}{one \newline two \newline three} \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}{Lists - Loops 2}} \tn \SetRowColor{LightBackground} \mymulticolumn{1}{x{8.4cm}}{a = {[}'one' , 'two', 'three'{]} \newline \newline for i in range(len(a)): \newline print(f"a{[}\{i\}{]} == \{a{[}i{]}\}")} \tn \hhline{>{\arrayrulecolor{DarkBackground}}-} \SetRowColor{LightBackground} \mymulticolumn{1}{x{8.4cm}}{a{[}0{]} == one \newline a{[}1{]} == two \newline a{[}2{]} == three} \tn \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} % That's all folks \end{multicols*} \end{document}