\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{dicewitch (dicewitch)} \pdfinfo{ /Title (learn-python-the-hard-way-symbol-review.pdf) /Creator (Cheatography) /Author (dicewitch (dicewitch)) /Subject (Learn Python the Hard Way - Symbol Review 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}{346CA3} \definecolor{LightBackground}{HTML}{F2F5F9} \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{Learn Python the Hard Way - Symbol Review Cheat Sheet}}}} \\ \normalsize{by \textcolor{DarkBackground}{dicewitch (dicewitch)} via \textcolor{DarkBackground}{\uline{cheatography.com/38332/cs/11977/}}} \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}dicewitch (dicewitch) \\ \uline{cheatography.com/dicewitch} \\ \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 2nd June, 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*}{3} \begin{tabularx}{5.377cm}{p{0.54924 cm} x{2.01388 cm} x{2.01388 cm} } \SetRowColor{DarkBackground} \mymulticolumn{3}{x{5.377cm}}{\bf\textcolor{white}{Keywords}} \tn % Row 0 \SetRowColor{LightBackground} {\bf{Keyword}} & {\bf{Description}} & {\bf{Example}} \tn % Row Count 3 (+ 3) % Row 1 \SetRowColor{white} `and` & Logical and & `True and False == False` \tn % Row Count 5 (+ 2) % Row 2 \SetRowColor{LightBackground} `as` & Part of the `with-as` statement & `with X as Y: pass` \tn % Row Count 7 (+ 2) % Row 3 \SetRowColor{white} \seqsplit{`assert`} & Assert that something is true. & `assert False, "Error!" \tn % Row Count 9 (+ 2) % Row 4 \SetRowColor{LightBackground} \seqsplit{`break`} & Stop this loop right now. & `while True: break` \tn % Row Count 11 (+ 2) % Row 5 \SetRowColor{white} \seqsplit{`class`} & Define a class. & `class Person(object)` \tn % Row Count 13 (+ 2) % Row 6 \SetRowColor{LightBackground} \seqsplit{`continue`} & Don't process more of the loop, do it again. & `while True: continue` \tn % Row Count 16 (+ 3) % Row 7 \SetRowColor{white} `def` & Define a function. & `def X(): pass` \tn % Row Count 18 (+ 2) % Row 8 \SetRowColor{LightBackground} `del` & Delete from dictionary. & `del X{[}Y{]}` \tn % Row Count 20 (+ 2) % Row 9 \SetRowColor{white} \seqsplit{`elif`} & Else if & `if: X; elif: Y; else: J` \tn % Row Count 22 (+ 2) % Row 10 \SetRowColor{LightBackground} \seqsplit{`else`} & Else condition & `if: X; elif: Y; else: J` \tn % Row Count 24 (+ 2) % Row 11 \SetRowColor{white} \seqsplit{`except`} & If an exception happens, do this.` & `except ValueError, e: print e` \tn % Row Count 26 (+ 2) % Row 12 \SetRowColor{LightBackground} \seqsplit{`exec`} & Run a string as Python & `exec 'print "hello"'` \tn % Row Count 28 (+ 2) % Row 13 \SetRowColor{white} \seqsplit{`finally`} & Exceptions or not, finally do this no matter what. & `finally: pass` \tn % Row Count 31 (+ 3) \end{tabularx} \par\addvspace{1.3em} \vfill \columnbreak \begin{tabularx}{5.377cm}{p{0.54924 cm} x{2.01388 cm} x{2.01388 cm} } \SetRowColor{DarkBackground} \mymulticolumn{3}{x{5.377cm}}{\bf\textcolor{white}{Keywords (cont)}} \tn % Row 14 \SetRowColor{LightBackground} `for` & Loop over a collection of things. & `for X in Y: pass` \tn % Row Count 2 (+ 2) % Row 15 \SetRowColor{white} \seqsplit{`from`} & Importing specific parts of a module. & `from x import y`` \tn % Row Count 5 (+ 3) % Row 16 \SetRowColor{LightBackground} \seqsplit{`global`} & Declares a global variable & `global X` \tn % Row Count 7 (+ 2) % Row 17 \SetRowColor{white} `if` & If condition & `if: X; elif: Y; else: J` \tn % Row Count 9 (+ 2) % Row 18 \SetRowColor{LightBackground} \seqsplit{`import`} & Import a module into this one to use. & `import os` \tn % Row Count 12 (+ 3) % Row 19 \SetRowColor{white} `in` & Part of `for-loops`. Also a test of X in Y. & `for X in Y: pass` also `1 in {[}1{]} == True` \tn % Row Count 15 (+ 3) % Row 20 \SetRowColor{LightBackground} `is` & Like `==` to test equality & 1 is 1 == True \tn % Row Count 17 (+ 2) % Row 21 \SetRowColor{white} \seqsplit{`lambda`} & Create a short anonymous function & `s = lambda y: y ** y; s(3)` \tn % Row Count 19 (+ 2) % Row 22 \SetRowColor{LightBackground} `not` & Logical not & `not True == False` \tn % Row Count 21 (+ 2) % Row 23 \SetRowColor{white} `or` & Logical or & `True or False == True` \tn % Row Count 23 (+ 2) % Row 24 \SetRowColor{LightBackground} \seqsplit{`pass`} & This block is empty. & `def empty(): pass` \tn % Row Count 25 (+ 2) % Row 25 \SetRowColor{white} \seqsplit{`print`} & Print this string. & `print 'this string'` \tn % Row Count 27 (+ 2) % Row 26 \SetRowColor{LightBackground} \seqsplit{`raise`} & Raise an exception when things go wrong. & `raise \seqsplit{ValueError("No")`} \tn % Row Count 30 (+ 3) \end{tabularx} \par\addvspace{1.3em} \vfill \columnbreak \begin{tabularx}{5.377cm}{p{0.54924 cm} x{2.01388 cm} x{2.01388 cm} } \SetRowColor{DarkBackground} \mymulticolumn{3}{x{5.377cm}}{\bf\textcolor{white}{Keywords (cont)}} \tn % Row 27 \SetRowColor{LightBackground} \seqsplit{`return`} & Exit the function with a return value. & `def X(): return Y` \tn % Row Count 3 (+ 3) % Row 28 \SetRowColor{white} `try` & Try this block, and if exception, go to `except`. & `try: pass` \tn % Row Count 6 (+ 3) % Row 29 \SetRowColor{LightBackground} \seqsplit{`while`} & While loop & `while X: pass` \tn % Row Count 8 (+ 2) % Row 30 \SetRowColor{white} \seqsplit{`with`} & With an expression as a variable do. & `with X as Y: pass` \tn % Row Count 11 (+ 3) % Row 31 \SetRowColor{LightBackground} \seqsplit{`yield`} & Pause here and return to caller. & `def x(): yield Y; X().next()` \tn % Row Count 13 (+ 2) \hhline{>{\arrayrulecolor{DarkBackground}}---} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{p{0.59501 cm} x{2.33427 cm} x{1.64772 cm} } \SetRowColor{DarkBackground} \mymulticolumn{3}{x{5.377cm}}{\bf\textcolor{white}{Data Types}} \tn % Row 0 \SetRowColor{LightBackground} {\bf{Type}} & {\bf{Description}} & {\bf{Example}} \tn % Row Count 2 (+ 2) % Row 1 \SetRowColor{white} \seqsplit{`True`} & True boolean value & `True or False == True` \tn % Row Count 4 (+ 2) % Row 2 \SetRowColor{LightBackground} \seqsplit{`False`} & False boolean value. & `False and True == False` \tn % Row Count 6 (+ 2) % Row 3 \SetRowColor{white} \seqsplit{`None`} & Represents "nothing" or "no value". & x = None \tn % Row Count 8 (+ 2) % Row 4 \SetRowColor{LightBackground} \seqsplit{`strings`} & Stores textual info & `x = "hello"` \tn % Row Count 10 (+ 2) % Row 5 \SetRowColor{white} \seqsplit{`numbers`} & Stores integers & `i = 100` \tn % Row Count 12 (+ 2) % Row 6 \SetRowColor{LightBackground} \seqsplit{`floats`} & Stores decimals & `i = 10.389` \tn % Row Count 14 (+ 2) % Row 7 \SetRowColor{white} \seqsplit{`lists`} & Stores a list of things & `j = {[}1,2,3,4{]}` \tn % Row Count 16 (+ 2) % Row 8 \SetRowColor{LightBackground} \seqsplit{`dicts`} & Stores a key=value mapping of things & e = \{'x': 1, 'y': 2\} \tn % Row Count 18 (+ 2) \hhline{>{\arrayrulecolor{DarkBackground}}---} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{p{0.54924 cm} x{2.19696 cm} x{1.8308 cm} } \SetRowColor{DarkBackground} \mymulticolumn{3}{x{5.377cm}}{\bf\textcolor{white}{String Formats}} \tn % Row 0 \SetRowColor{LightBackground} {\bf{Escape}} & {\bf{Description}} & {\bf{Example}} \tn % Row Count 3 (+ 3) % Row 1 \SetRowColor{white} `\%d` & Decimal int & `"\%d" \% 45 == '45'` \tn % Row Count 5 (+ 2) % Row 2 \SetRowColor{LightBackground} `\%o` & Octal number & `\%o \% 1000 == '1750' \tn % Row Count 7 (+ 2) % Row 3 \SetRowColor{white} `\%u` & Unsigned decimal & `"\%u" \% -1000 == '-1000'` \tn % Row Count 9 (+ 2) % Row 4 \SetRowColor{LightBackground} `\%x` & Hexadecimal lowercase & `"\%x" \% 1000 == '3e8'` \tn % Row Count 11 (+ 2) % Row 5 \SetRowColor{white} `\%X` & Hexadecimal uppercase. & `"\%X" \% 1000 == '3E8'` \tn % Row Count 13 (+ 2) % Row 6 \SetRowColor{LightBackground} `\%e` & Exponential notation, lowercase 'e'. & `"\%e" \% 1000 == '1.000000e+03'` \tn % Row Count 15 (+ 2) % Row 7 \SetRowColor{white} `\%E` & Exponential notation, uppercase 'E'. & `"\%E" \% 1000 == '1.000000E+03'` \tn % Row Count 17 (+ 2) % Row 8 \SetRowColor{LightBackground} `\%f` & Floating point real number. & `"\%f" \% 10.34 == '10.340000'` \tn % Row Count 19 (+ 2) % Row 9 \SetRowColor{white} `\%F` & Same as \%f. & `"\%F" \% 10.34 == '10.340000'` \tn % Row Count 21 (+ 2) % Row 10 \SetRowColor{LightBackground} `\%g` & Either \%f or \%e, whichever is shorter.` & `"\%g" \% 10.34 == '10.34'` \tn % Row Count 24 (+ 3) % Row 11 \SetRowColor{white} `\%G` & Same as \%g but uppercase. & `"\%G" \% 10.34 == '10.34'` \tn % Row Count 26 (+ 2) % Row 12 \SetRowColor{LightBackground} `\%c` & Character format. & `"\%c" \% 34 == '"'` \tn % Row Count 28 (+ 2) % Row 13 \SetRowColor{white} `\%r` & Repr format (debugging format). & `"\%r" \% int == "\textless{}type 'int'\textgreater{}"` \tn % Row Count 30 (+ 2) \end{tabularx} \par\addvspace{1.3em} \vfill \columnbreak \begin{tabularx}{5.377cm}{p{0.54924 cm} x{2.19696 cm} x{1.8308 cm} } \SetRowColor{DarkBackground} \mymulticolumn{3}{x{5.377cm}}{\bf\textcolor{white}{String Formats (cont)}} \tn % Row 14 \SetRowColor{LightBackground} `\%s` & String format. & `"\%s there" \% 'hi' == 'hi there'` \tn % Row Count 3 (+ 3) % Row 15 \SetRowColor{white} `\%\%` & A percent sign. & `"\%g\%\%" \% 10.34 == '10.34\%'` \tn % Row Count 5 (+ 2) \hhline{>{\arrayrulecolor{DarkBackground}}---} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{p{1.44333 cm} x{3.53367 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{String Escape Sequences}} \tn % Row 0 \SetRowColor{LightBackground} \textbackslash{}\textbackslash{} & Backslash \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} `\textbackslash{}'` & Single-quote \tn % Row Count 2 (+ 1) % Row 2 \SetRowColor{LightBackground} `\textbackslash{}''` & Double-quote \tn % Row Count 3 (+ 1) % Row 3 \SetRowColor{white} `\textbackslash{}a` & Bell \tn % Row Count 4 (+ 1) % Row 4 \SetRowColor{LightBackground} `\textbackslash{}b` & Backspace \tn % Row Count 5 (+ 1) % Row 5 \SetRowColor{white} `\textbackslash{}f` & Formfeed \tn % Row Count 6 (+ 1) % Row 6 \SetRowColor{LightBackground} `\textbackslash{}n` & `Newline` \tn % Row Count 7 (+ 1) % Row 7 \SetRowColor{white} `\textbackslash{}r` & Carriage \tn % Row Count 8 (+ 1) % Row 8 \SetRowColor{LightBackground} `\textbackslash{}t` & Tab \tn % Row Count 9 (+ 1) % Row 9 \SetRowColor{white} `\textbackslash{}v` & Vertical tab \tn % Row Count 10 (+ 1) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} % That's all folks \end{multicols*} \end{document}