Cheatography

# PatterPatter Cheat Sheet by patter123

This is a description

### Something cheap

 print() Show the inform­ation you want on the screen input() Change number to be number integer str() A list of number letter and symbol float() change number to be decimal number len() the length of the string
LOL there no such thing as note

### Math

 == equal to != no equal to < less than > more than <= less than or equal to >= more than or equal to % Modulo, Find the remainder
LOL

### Area of circle

 ­"­" Python Intro Assignment #2 name student number "­­"­" #Ask the user for a radius of a circle user_r­­adius = input(­­"What is a radius of a circle­­?") #Convert the given radius to a floating point radius = float(­­us­e­r­_r­­adius) #Make a variable called pi pi = float(­­3.1­415) #Calculate the area of the circle using exponents area = pi(ra­­diu­­s*2) #Display the area of the circle to the user print ("The area of the circle is", area)
LOL

### Countdown machine

 user_n­­umber = input(­­"What number do you want to count down? ") number = int(us­­er­_­n­umber) countd­­ow­n­_­string = ' ' while number > 0: countd­­ow­n­_­number = countd­­ow­n­_­string + str(nu­­mber) + " " number = number - 1 #print­­(n­u­mber) print (count­­do­w­n­_s­­tring)

### Print Name

 name = "tim GIRARD­­" print (name.u­­p­p­er()) → TIM GIRARD print (name.l­­o­w­er()) → tim girard print (name.c­­a­p­i­ta­­lize()) → Tim girard print (name.t­­i­t­le()) → Tim Girard
LOL

### apichat

 Variable Hold a value and can be change string a list of character such as number letter and symbol Syntax Grammar and structure of languge Integer number counting number float number the number in decimal modulo find the remainder
LOL

### Addition and multip­lic­ation and Exponet

string + string
Combine together
string + number
CRASH!
number + number
string * number
Combine that string
string* string
CRASH!
number * number
Multiply (Math)
string ** string
CRASH!
number ** number
Exponent (Math)
string ** number
CRASH!

### Sort word per line

 mystr = "­­He­l­l­o" letter_num = 0 while letter_num < len(my­­str): print (mystr­­[l­e­t­te­­r_num]) letter_num = letter_num + 1 H e l l o

### sort of fruit list

 fruits = [] #an empty list for number in range(5): user_fruit = input(­­"­P­lease enter a fruit") fruits.ap­­pe­n­d­(u­­ser­­_f­ruit) print ("Size of fruit list is", len(fr­­uits)) fruits.sort() for fruit in fruits: print ("Fruit: ", fruit)

### sort of fruit list

 fruits = [] #an empty list for number in range(5): user_fruit = input(­­"­P­lease enter a fruit") fruits.ap­­pe­n­d­(u­­ser­­_f­ruit) print ("Size of fruit list is", len(fr­­uits)) fruits.sort() for fruit in fruits: print ("Fruit: ", fruit)

### teaw cheat Example

 print(2) integer Print(2.5) floating point Print (Hello) string print(­mystr) variable
LOL

### Namming Covention

 Rule for giving name - letter - numbers - underscore _ Valid name - _myStr - my3 - Hello_­­there Invalid name - 3my=”hi” -- cannot start with number - first name=”hi” - first-name - first+name
LOL

### Reverse word

 while True: word = input(­­"­P­lease enter a word") index = 0 reverse = ' ' while int(index) < len(word): reverse = word[i­­ndex] + (reverse) index = int(index) + 1 print ("Re­­verse: ", reverse)
LOL

### convert to binary

 user_n­­umber = ' ' while user_n­­umber != ' 0 ' : user_n­­umber = input ("Enter a number to convert to binary­­") number = int(us­­er­_­n­umber) binary­­_s­tring = ' ' while (number > 0): remainder = number%2 binary­­_s­tring = str(re­­ma­i­n­der)+ binary­­_s­tring number = number//2 print ("Binary string is", binary­­_s­t­ring)
LOL

### Area of circle

 Python Intro Assignment #2 name student number "­­"­" #Ask the user for a radius of a circle user_r­­adius = input(­­"What is a radius of a circle­­?") #Convert the given radius to a floating point radius = float(­­us­e­r­_r­­adius) #Make a variable called pi pi = float(­­3.1­415) #Calculate the area of the circle using exponents area = pi(ra­­diu­­s*2) #Display the area of the circle to the user print ("The area of the circle is", area)

### Area of circle

 Python Intro Assignment #2 name student number "­­"­" #Ask the user for a radius of a circle user_r­­adius = input(­­"What is a radius of a circle­­?") #Convert the given radius to a floating point radius = float(­­us­e­r­_r­­adius) #Make a variable called pi pi = float(­­3.1­415) #Calculate the area of the circle using exponents area = pi(ra­­diu­­s*2) #Display the area of the circle to the user print ("The area of the circle is", area)