\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{luckytime}
\pdfinfo{
  /Title (python-121.pdf)
  /Creator (Cheatography)
  /Author (luckytime)
  /Subject (python 121 Cheat Sheet)
}

% Lengths and widths
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\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
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\onehalfspacing

% Commands
\newcommand{\SetRowColor}[1]{\noalign{\gdef\RowColorName{#1}}\rowcolor{\RowColorName}} % Shortcut for row colour
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% 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 121 Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{luckytime} via \textcolor{DarkBackground}{\uline{cheatography.com/214087/cs/46599/}}}
\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}luckytime \\
  \uline{cheatography.com/luckytime} \\
  \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 18th June, 2025.\\
   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*}{4}

\begin{tabularx}{3.833cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{3.833cm}}{\bf\textcolor{white}{Files}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{3.833cm}}{file = open("data.txt")  \# open file \newline % Row Count 1 (+ 1)
contents = file.read()  \# whole file as string \newline % Row Count 2 (+ 1)
lines = file.readlines()  \# all lines as list \newline % Row Count 3 (+ 1)
line = file.readline()  \# one line \newline % Row Count 4 (+ 1)
for line in file:  \# loop lines \newline % Row Count 5 (+ 1)
    line = line.strip()  \# remove \textbackslash{}n and spaces \newline % Row Count 6 (+ 1)
    parts = line.split(",")  \# split by comma \newline % Row Count 7 (+ 1)
file.close()  \# close file% Row Count 8 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{3.833cm}}{\bf\textcolor{white}{annoying for loops}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{3.833cm}}{\# -{}-{}- Compact Python Cheat Sheet with Examples -{}-{}- \newline % Row Count 2 (+ 2)
\# 1. In-place list update \newline % Row Count 3 (+ 1)
def \seqsplit{threshold\_filter(readings}, threshold): \newline % Row Count 4 (+ 1)
    for i in range(len(readings)): \newline % Row Count 5 (+ 1)
        readings{[}i{]} = 0 if readings{[}i{]} \textless{} 0 else (threshold if readings{[}i{]} \textless{}= threshold else readings{[}i{]}) \newline % Row Count 8 (+ 3)
r = {[}-3, 0, 2, 8, 15{]} \newline % Row Count 9 (+ 1)
threshold\_filter(r, 5) \newline % Row Count 10 (+ 1)
print(r)  \# {[}0, 5, 5, 8, 15{]} \newline % Row Count 11 (+ 1)
\# 2. Count words in order \newline % Row Count 12 (+ 1)
def word\_counter(s): \newline % Row Count 13 (+ 1)
    counts = \{\} \newline % Row Count 14 (+ 1)
    for w in s.lower().split(): \newline % Row Count 15 (+ 1)
        counts{[}w{]} = counts.get(w, 0) + 1 \newline % Row Count 16 (+ 1)
    return counts \newline % Row Count 17 (+ 1)
print(word\_counter("Hi there hi There"))  \# \{'hi': 2, 'there': 2\} \newline % Row Count 19 (+ 2)
\# 3. Sum list until threshold (while loop) \newline % Row Count 20 (+ 1)
def sum\_list\_until(nums, t): \newline % Row Count 21 (+ 1)
    i, total = 0, 0 \newline % Row Count 22 (+ 1)
    while i \textless{} len(nums) and total \textless{} t: \newline % Row Count 23 (+ 1)
        total += nums{[}i{]} \newline % Row Count 24 (+ 1)
        i += 1 \newline % Row Count 25 (+ 1)
    return i, total \newline % Row Count 26 (+ 1)
print(sum\_list\_until({[}5,6,6,4{]}, 17))  \# (3, 17) \newline % Row Count 27 (+ 1)
\# 4. Running total with labels \newline % Row Count 28 (+ 1)
def units\_available(data): \newline % Row Count 29 (+ 1)
    total = 0 \newline % Row Count 30 (+ 1)
} \tn 
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{3.833cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{3.833cm}}{\bf\textcolor{white}{annoying for loops (cont)}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{3.833cm}}{    return {[}(total:=total+change, label) for change, label in data{]} \newline % Row Count 2 (+ 2)
print(units\_available({[}(15,"Mon"), (-5,"Tue"), (0,"Wed"){]})) \newline % Row Count 4 (+ 2)
\# {[}(15, 'Mon'), (10, 'Tue'), (10, 'Wed'){]} \newline % Row Count 5 (+ 1)
\# 5. Index courses by keys \newline % Row Count 6 (+ 1)
def index\_course(grades): \newline % Row Count 7 (+ 1)
    d = \{\} \newline % Row Count 8 (+ 1)
    for i, entry in enumerate(grades): \newline % Row Count 9 (+ 1)
        d.setdefault(entry{[}'course\_id'{]}, {[}{]}).append(i) \newline % Row Count 11 (+ 2)
    return d \newline % Row Count 12 (+ 1)
grades = {[} \newline % Row Count 13 (+ 1)
    \{'student\_id':1,'course\_id':'cosc121','grade':'A'\}, \newline % Row Count 15 (+ 2)
    \{'student\_id':2,'course\_id':'cosc122','grade':'B'\}, \newline % Row Count 17 (+ 2)
    \{'student\_id':3,'course\_id':'cosc121','grade':'C'\} \newline % Row Count 19 (+ 2)
{]} \newline % Row Count 20 (+ 1)
\seqsplit{print(index\_course(grades))}  \# \{'cosc121':{[}0,2{]}, 'cosc122':{[}1{]}\} \newline % Row Count 22 (+ 2)
\# 6. Dict comprehension \newline % Row Count 23 (+ 1)
words = {[}'hello', 'world'{]} \newline % Row Count 24 (+ 1)
word\_lengths = \{w: len(w) for w in words\} \newline % Row Count 25 (+ 1)
print(word\_lengths)  \# \{'hello': 5, 'world': 5\} \newline % Row Count 26 (+ 1)
\# 7. List comprehension with condition \newline % Row Count 27 (+ 1)
thresholded = {[}x if x \textgreater{} 5 else 5 for x in {[}-2,4,8,10{]}{]} \newline % Row Count 29 (+ 2)
print(thresholded)  \# {[}5, 5, 8, 10{]} \newline % Row Count 30 (+ 1)
} \tn 
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{3.833cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{3.833cm}}{\bf\textcolor{white}{annoying for loops (cont)}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{3.833cm}}{\# 8. Using enumerate \newline % Row Count 1 (+ 1)
for i, v in enumerate({[}'a','b','c'{]}): \newline % Row Count 2 (+ 1)
    print(i, v) \newline % Row Count 3 (+ 1)
\# 0 a \newline % Row Count 4 (+ 1)
\# 1 b \newline % Row Count 5 (+ 1)
\# 2 c \newline % Row Count 6 (+ 1)
\# 9. Sorted dict keys output \newline % Row Count 7 (+ 1)
my\_dict = \{'b': 2, 'a': 1, 'c': 3\} \newline % Row Count 8 (+ 1)
for k in sorted(my\_dict): \newline % Row Count 9 (+ 1)
    print(k, my\_dict{[}k{]}) \newline % Row Count 10 (+ 1)
\# a 1 \newline % Row Count 11 (+ 1)
\# b 2 \newline % Row Count 12 (+ 1)
\# c 3% Row Count 13 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{p{0.3433 cm} p{0.3433 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{3.833cm}}{\bf\textcolor{white}{exceptions}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{3.833cm}}{except ZeroDivisionError:} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
\mymulticolumn{2}{x{3.833cm}}{except ValueError:} \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{3.833cm}}{except IndexError:} \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
\mymulticolumn{2}{x{3.833cm}}{except TypeError:} \tn 
% Row Count 4 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{x{1.92248 cm} x{1.51052 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{3.833cm}}{\bf\textcolor{white}{list slicing}}  \tn
% Row 0
\SetRowColor{LightBackground}
nums = {[}10, 20, 30, 40, 50, 60{]} & nums{[}1:4{]}  {[}20, 30, 40{]} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
nums{[}:3{]}.  {[}10, 20, 30{]} & nums{[}-2:{]} last 2 items \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
nums{[}:-1{]} all but last & nums{[}::2{]} every 2nd item \tn 
% Row Count 6 (+ 2)
% Row 3
\SetRowColor{white}
\mymulticolumn{2}{x{3.833cm}}{nums{[}::-1{]}.  reverse} \tn 
% Row Count 7 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{x{1.75083 cm} x{1.68217 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{3.833cm}}{\bf\textcolor{white}{If statment}}  \tn
% Row 0
\SetRowColor{LightBackground}
if num \% 2 == 0: \#even & if num \% 2 != 0: \#odd \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
6 / 2 \#3.0 & 7 // 2 \#3 \tn 
% Row Count 3 (+ 1)
% Row 2
\SetRowColor{LightBackground}
7 \% 2 \#1 & 3 ** 2 \#9 \tn 
% Row Count 4 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{3.833cm}}{\bf\textcolor{white}{matplotlib}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{3.833cm}}{import matplotlib.pyplot as plt \newline % Row Count 1 (+ 1)
import numpy as np \newline % Row Count 2 (+ 1)
\# ======= BASIC LINE PLOT ======= \newline % Row Count 3 (+ 1)
x = np.linspace(0, 10, 100) \newline % Row Count 4 (+ 1)
y = np.sin(x) \newline % Row Count 5 (+ 1)
plt.plot(x, y, label='sin(x)')        \# Line plot \newline % Row Count 6 (+ 1)
plt.title("Sine Curve")               \# Title \newline % Row Count 7 (+ 1)
plt.xlabel("x-axis")                  \# X label \newline % Row Count 8 (+ 1)
plt.ylabel("y-axis")                  \# Y label \newline % Row Count 9 (+ 1)
plt.grid(True)                        \# Show grid \newline % Row Count 10 (+ 1)
plt.legend()                          \# Show legend \newline % Row Count 12 (+ 2)
plt.xlim(0, 10)                       \# Limit x-axis \newline % Row Count 14 (+ 2)
plt.ylim(-1, 1)                       \# Limit y-axis \newline % Row Count 16 (+ 2)
plt.xticks({[}0, 5, 10{]})                \# Custom x ticks \newline % Row Count 18 (+ 2)
plt.yticks({[}-1, 0, 1{]})                \# Custom y ticks \newline % Row Count 20 (+ 2)
\seqsplit{plt.savefig("sine\_plot.png")}          \# Save to file \newline % Row Count 22 (+ 2)
plt.show()                            \# Show the plot \newline % Row Count 24 (+ 2)
\# ======= SCATTER PLOT ======= \newline % Row Count 25 (+ 1)
x = np.random.rand(50) \newline % Row Count 26 (+ 1)
y = np.random.rand(50) \newline % Row Count 27 (+ 1)
plt.scatter(x, y) \newline % Row Count 28 (+ 1)
plt.title("Random Scatter") \newline % Row Count 29 (+ 1)
plt.show() \newline % Row Count 30 (+ 1)
} \tn 
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{3.833cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{3.833cm}}{\bf\textcolor{white}{matplotlib (cont)}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{3.833cm}}{\# ======= BAR CHART ======= \newline % Row Count 1 (+ 1)
categories = {[}'A', 'B', 'C'{]} \newline % Row Count 2 (+ 1)
values = {[}10, 20, 15{]} \newline % Row Count 3 (+ 1)
plt.bar(categories, values) \newline % Row Count 4 (+ 1)
plt.title("Bar Chart") \newline % Row Count 5 (+ 1)
plt.show() \newline % Row Count 6 (+ 1)
\# ======= HISTOGRAM ======= \newline % Row Count 7 (+ 1)
data = np.random.randn(1000) \newline % Row Count 8 (+ 1)
plt.hist(data, bins=30) \newline % Row Count 9 (+ 1)
plt.title("Histogram") \newline % Row Count 10 (+ 1)
plt.show() \newline % Row Count 11 (+ 1)
\# ======= CLEARING / CLOSING ======= \newline % Row Count 12 (+ 1)
plt.clf()      \# Clear current figure (if needed) \newline % Row Count 13 (+ 1)
plt.close()    \# Close the plot window% Row Count 14 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{3.833cm}}{\bf\textcolor{white}{For Loops}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{3.833cm}}{for i in range(5): print(i)            \# 0 1 2 3 4 \newline % Row Count 2 (+ 2)
for i in range(2,6): print(i)          \# 2 3 4 5 \newline % Row Count 3 (+ 1)
for i in range(1,10,3): print(i)       \# 1 4 7 \newline % Row Count 4 (+ 1)
lst={[}'a','b','c'{]} \newline % Row Count 5 (+ 1)
for i in range(len(lst)): print(i,lst{[}i{]})  \# 0 a 1 b 2 c \newline % Row Count 7 (+ 2)
for item in lst: print(item)                 \# a b c \newline % Row Count 9 (+ 2)
for i,item in enumerate(lst): print(i,item) \# 0 a 1 b 2 c% Row Count 11 (+ 2)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{3.833cm}}{\bf\textcolor{white}{switching while loop to for loop}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{3.833cm}}{\# For loops \newline % Row Count 1 (+ 1)
for op1 in range(0, value1): \newline % Row Count 2 (+ 1)
    for op2 in range(value1, value2, -1): \newline % Row Count 3 (+ 1)
        print(f"\{op1:3\} x \{op2:3\} = \{op1*op2:3\}") \newline % Row Count 4 (+ 1)
\# Equivalent while loops \newline % Row Count 5 (+ 1)
op1 = 0 \newline % Row Count 6 (+ 1)
while op1 \textless{} value1: \newline % Row Count 7 (+ 1)
    op2 = value1 \newline % Row Count 8 (+ 1)
    while op2 \textgreater{} value2: \newline % Row Count 9 (+ 1)
        print(f"\{op1:3\} x \{op2:3\} = \{op1*op2:3\}") \newline % Row Count 10 (+ 1)
        op2 -= 1 \newline % Row Count 11 (+ 1)
    op1 += 1% Row Count 12 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{3.833cm}}{\bf\textcolor{white}{annoying for loop on dict}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{3.833cm}}{\# for key, value in dict.items() \newline % Row Count 1 (+ 1)
d = \{'a':1,'b':2\} \newline % Row Count 2 (+ 1)
for k,v in d.items(): print(k,v) \newline % Row Count 3 (+ 1)
\# Before: d = \{'a':1,'b':2\} \newline % Row Count 4 (+ 1)
\# After: \newline % Row Count 5 (+ 1)
\# a 1 \newline % Row Count 6 (+ 1)
\# b 2 \newline % Row Count 7 (+ 1)
\# for word in string.split() \newline % Row Count 8 (+ 1)
s = "  hello world  " \newline % Row Count 9 (+ 1)
for w in s.strip().split(): print(w) \newline % Row Count 10 (+ 1)
\# Before: "  hello world  " \newline % Row Count 11 (+ 1)
\# After: \newline % Row Count 12 (+ 1)
\# hello \newline % Row Count 13 (+ 1)
\# world \newline % Row Count 14 (+ 1)
\# for i in range(len(list)) \newline % Row Count 15 (+ 1)
lst = {[}'x','y'{]} \newline % Row Count 16 (+ 1)
for i in range(len(lst)): print(i,lst{[}i{]}) \newline % Row Count 17 (+ 1)
\# Before: {[}'x','y'{]} \newline % Row Count 18 (+ 1)
\# After: \newline % Row Count 19 (+ 1)
\# 0 x \newline % Row Count 20 (+ 1)
\# 1 y \newline % Row Count 21 (+ 1)
\# for i in range(start, stop, step) \newline % Row Count 22 (+ 1)
for i in range(1,6,2): print(i) \newline % Row Count 23 (+ 1)
\# Before: range(1,6,2) \newline % Row Count 24 (+ 1)
\# After: \newline % Row Count 25 (+ 1)
\# 1 \newline % Row Count 26 (+ 1)
\# 3 \newline % Row Count 27 (+ 1)
\# 5 \newline % Row Count 28 (+ 1)
\# for i, val in enumerate(list) \newline % Row Count 29 (+ 1)
lst = {[}'a','b'{]} \newline % Row Count 30 (+ 1)
} \tn 
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{3.833cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{3.833cm}}{\bf\textcolor{white}{annoying for loop on dict (cont)}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{3.833cm}}{for i,v in enumerate(lst): print(i,v) \newline % Row Count 1 (+ 1)
\# Before: {[}'a','b'{]} \newline % Row Count 2 (+ 1)
\# After: \newline % Row Count 3 (+ 1)
\# 0 a \newline % Row Count 4 (+ 1)
\# 1 b% Row Count 5 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{3.833cm}}{\bf\textcolor{white}{Sets and Dictionaries}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{3.833cm}}{\# Sets from list and operations \newline % Row Count 1 (+ 1)
lst={[}1,2,2,3,4,4{]} \newline % Row Count 2 (+ 1)
s=set(lst)               \# \{1,2,3,4\} \newline % Row Count 3 (+ 1)
s.add(5)                 \# \{1,2,3,4,5\} \newline % Row Count 4 (+ 1)
s.remove(2)              \# \{1,3,4,5\} \newline % Row Count 5 (+ 1)
s.discard(6)             \# \{1,3,4,5\} no error \newline % Row Count 6 (+ 1)
print(3 in s)            \# True \newline % Row Count 7 (+ 1)
s2=\{3,4,5,6\} \newline % Row Count 8 (+ 1)
print(s.union(s2))       \# \{1,3,4,5,6\} \newline % Row Count 9 (+ 1)
\seqsplit{print(s.intersection(s2))\#} \{3,4,5\} \newline % Row Count 10 (+ 1)
print(s.difference(s2))  \# \{1\} \newline % Row Count 11 (+ 1)
print(s.issubset(s2))    \# False \newline % Row Count 12 (+ 1)
for x in s: print(x)     \# 1 3 4 5 (any order) \newline % Row Count 13 (+ 1)
\# Dictionaries and methods \newline % Row Count 14 (+ 1)
d=\{"a":1,"b":2\} \newline % Row Count 15 (+ 1)
print(d.keys())          \# dict\_keys({[}'a','b'{]}) \newline % Row Count 16 (+ 1)
print(d.values())        \# dict\_values({[}1,2{]}) \newline % Row Count 17 (+ 1)
print(d.items())         \# dict\_items({[}('a',1),('b',2){]}) \newline % Row Count 19 (+ 2)
print(d.get("a"))        \# 1 \newline % Row Count 20 (+ 1)
print(d.get("z",0))      \# 0 default if missing \newline % Row Count 21 (+ 1)
d{[}"c"{]}=3 \newline % Row Count 22 (+ 1)
for k in d: print(k)     \# a b c \newline % Row Count 23 (+ 1)
for v in d.values(): print(v)      \# 1 2 3 \newline % Row Count 24 (+ 1)
for k,v in d.items(): print(k,v)   \# a 1 b 2 c 3% Row Count 25 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{x{2.02547 cm} x{1.40753 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{3.833cm}}{\bf\textcolor{white}{Lists}}  \tn
% Row 0
\SetRowColor{LightBackground}
fruits = {[}"apple", "banana", "cherry"{]} & fruits{[}0{]} \#apple \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
fruits{[}-1{]} \#cherry & len(fruits) \#3 \tn 
% Row Count 3 (+ 1)
% Row 2
\SetRowColor{LightBackground}
fruits.append("kiwi") & fruits.insert(1, "pear") \tn 
% Row Count 5 (+ 2)
% Row 3
\SetRowColor{white}
\seqsplit{fruits.remove("banana")} & fruits.pop() \#removes last \tn 
% Row Count 7 (+ 2)
% Row 4
\SetRowColor{LightBackground}
fruits.sort() & sorted(fruits) \tn 
% Row Count 8 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}


% That's all folks
\end{multicols*}

\end{document}