\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 (chap-10.pdf) /Creator (Cheatography) /Author (Theo666) /Subject (Chap\_10 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{Chap\_10 Cheat Sheet}}}} \\ \normalsize{by \textcolor{DarkBackground}{Theo666} via \textcolor{DarkBackground}{\uline{cheatography.com/193738/cs/40540/}}} \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 29th September, 2023.\\ Updated 30th 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}{String}} \tn \SetRowColor{white} \mymulticolumn{1}{x{8.4cm}}{strings in Python are iterable, indexable and immutable (id) \newline % Row Count 2 (+ 2) len(string) \newline % Row Count 3 (+ 1) string{[}start:end:step{]} step can be negative% Row Count 4 (+ 1) } \tn \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{8.4cm}{x{3.68 cm} x{4.32 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Conversion between string and list}} \tn % Row 0 \SetRowColor{LightBackground} str() & convert an object to a string \tn % Row Count 2 (+ 2) % Row 1 \SetRowColor{white} \seqsplit{`string.split("sep";} maxsplit = )` & split a string into a list of substrings. By default, it uses whitespace (spaces, tabs, and newlines) as the delimiter \tn % Row Count 8 (+ 6) % Row 2 \SetRowColor{LightBackground} \seqsplit{`"sep".join(object)`} & concatenate the elements of an iterable object into a string \tn % Row Count 11 (+ 3) \hhline{>{\arrayrulecolor{DarkBackground}}--} \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{- join() : If use join on a list with only numeric elements, TypeError because the + operator is not defined for combining a list and an integer} \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}{other functions}} \tn \SetRowColor{white} \mymulticolumn{1}{x{8.4cm}}{{[}'\_\_add\_\_', '\_\_class\_\_', '\_\_contains\_\_', '\_\_delattr\_\_', '\_\_dir\_\_', \newline % Row Count 2 (+ 2) '\_\_doc\_\_', '\_\_eq\_\_', '\_\_format\_\_', '\_\_ge\_\_', '\_\_getattribute\_\_', '\_ \newline % Row Count 4 (+ 2) \_getitem\_\_', '\_\_getnewargs\_\_', '\_\_gt\_\_', '\_\_hash\_\_', '\_\_init\_\_', '\_ \newline % Row Count 6 (+ 2) \_init\_subclass\_\_', '\_\_iter\_\_', '\_\_le\_\_', '\_\_len\_\_', '\_\_lt\_\_', '\_\_mo \newline % Row Count 8 (+ 2) d\_\_', '\_\_mul\_\_', '\_\_ne\_\_', '\_\_new\_\_', '\_\_reduce\_\_', '\_\_reduce\_ex\_\_' \newline % Row Count 10 (+ 2) , '\_\_repr\_\_', '\_\_rmod\_\_', '\_\_rmul\_\_', '\_\_setattr\_\_', '\_\_sizeof\_\_', \newline % Row Count 12 (+ 2) '\_\_str\_\_', '\_\_subclasshook\_\_', 'capitalize', 'casefold', 'center', \newline % Row Count 14 (+ 2) 'count', 'encode', 'endswith', 'expandtabs', 'find', 'format', 'for \newline % Row Count 16 (+ 2) mat\_map', 'index', 'isalnum', 'isalpha', 'isdecimal', 'isdigit', 'i \newline % Row Count 18 (+ 2) sidentifier', 'islower', 'isnumeric', 'isprintable', 'isspace', 'is \newline % Row Count 20 (+ 2) title', 'isupper', 'join', 'ljust', 'lower', 'lstrip', 'maketrans', \newline % Row Count 22 (+ 2) 'partition', 'replace', 'rfind', 'rindex', 'rjust', 'rpartition', \newline % Row Count 24 (+ 2) 'rsplit', 'rstrip', 'split', 'splitlines', 'startswith', 'strip', \newline % Row Count 26 (+ 2) 'swapcase', 'title', 'translate', 'upper', 'zfill'{]}% Row Count 28 (+ 2) } \tn \hhline{>{\arrayrulecolor{DarkBackground}}-} \SetRowColor{LightBackground} \mymulticolumn{1}{x{8.4cm}}{The dir() function in Python returns all of the object's properties and methods, but not their values1. When you call dir(string), it returns a list of valid attributes and methods that can be used with the string object.} \tn \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{8.4cm}{x{4.48 cm} x{3.52 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Operation in the stings}} \tn % Row 0 \SetRowColor{LightBackground} string + string & string * int \tn % Row Count 1 (+ 1) \hhline{>{\arrayrulecolor{DarkBackground}}--} \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{same to list, if string multipled by negative numbers or zero, it returns a empty string. if string multipled by floats, error} \tn \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{8.4cm}{x{3.04 cm} x{4.96 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Common Functions}} \tn % Row 0 \SetRowColor{LightBackground} str.place(a, b) & replace a by b in a string \tn % Row Count 2 (+ 2) % Row 1 \SetRowColor{white} str.count(a) & count thte number of a in a string \tn % Row Count 4 (+ 2) % Row 2 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{str.title()} \tn % Row Count 5 (+ 1) % Row 3 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{str.upper()} \tn % Row Count 6 (+ 1) % Row 4 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{str.lower()} \tn % Row Count 7 (+ 1) % Row 5 \SetRowColor{white} \seqsplit{`str.strip("character")`} & remove leading and trailing specific charaters. By default, whitespaces (spaces, tab, newline) \tn % Row Count 11 (+ 4) % Row 6 \SetRowColor{LightBackground} \seqsplit{`str.rstrip("character")`} & remove trailing specific character. By default, whitespaces \tn % Row Count 14 (+ 3) % Row 7 \SetRowColor{white} \seqsplit{`str.lstrip("character")`} & remove leading specific charachter. By default, whitespaces \tn % Row Count 17 (+ 3) % Row 8 \SetRowColor{LightBackground} str.isalpha() & check whether all the characters in a string are alphabeti. return True or False \tn % Row Count 21 (+ 4) % Row 9 \SetRowColor{white} \seqsplit{str.isnumeric()} & check whether all the characters in a string are numeric \tn % Row Count 24 (+ 3) % Row 10 \SetRowColor{LightBackground} \seqsplit{str.isdecimal()} & check whether all characters in a string are decimal digits (0-9) \tn % Row Count 27 (+ 3) % Row 11 \SetRowColor{white} \seqsplit{str.finf("to\_find")} & find the first occurrence of a specified substring within a string. It returns the index of the first character of the substring if found, and -1 if the substring is not present in the string \tn % Row Count 35 (+ 8) \end{tabularx} \par\addvspace{1.3em} \vfill \columnbreak \begin{tabularx}{8.4cm}{x{3.04 cm} x{4.96 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Common Functions (cont)}} \tn % Row 12 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{str.startwith("...")} \tn % Row Count 1 (+ 1) \hhline{>{\arrayrulecolor{DarkBackground}}--} \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{isnumeric() checks for a broader range of numeric characters, including those from other scripts, while isdecimal() only recognizes decimal digits. {\bf{Neither method recognizes decimal numbers or fractions.}}} \tn \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{8.4cm}{p{4 cm} p{4 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Espace Sequence}} \tn % Row 0 \SetRowColor{LightBackground} \textbackslash{}n & \textbackslash{}\textbackslash{} \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} \textbackslash{}t & \textbackslash{}" \tn % Row Count 2 (+ 1) % Row 2 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{\textbackslash{}'} \tn % Row Count 3 (+ 1) \hhline{>{\arrayrulecolor{DarkBackground}}--} \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{help us differentiate between characters that have a special meaning in the programming language and characters that are part of the string itself. If a string contain \textbackslash{}n in the text, \textbackslash{}\textbackslash{}n to distinguish newline charchater and text \textbackslash{}n. Except for \textbackslash{}' and \textbackslash{}", we can also use single/double quote to distinguish quote in text. \textbackslash{}r idem chapter 7} \tn \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} % That's all folks \end{multicols*} \end{document}