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Folk python Cheat Sheet by

Function

Print()
Show inform­­ation that you want on the screen
float()
make number into decimal number
str()
list of letter, number and symbols
int() [input]
get inform­ation from user
int() [integer]
number to integer number

addition

number + number
math - addition
string + string
combine together

Guess word game

import random

#Create a list

guesslist = ['grape', 'orange', 'chlor­opl­ast', 'ribos­ome', 'lipst­ick']

chance = 3
score = 0

print (guess­list)

while chance != 0:
random­_item = random.ch­oic­e(g­ues­slist)
user_input = input(­"­Please guess a word: ")
if user_input == random­_item:
print ("That's correc­t!")
score = score + 100
print ("Sc­ore­:", score)
else:
if user_input not in guesslist:
print ("Sorry, that isn't even in the list!")
chance = chance - 1
print ("Chance Remain­ing­:", chance)
else:
print ("Sorry, wrong choice­!")
chance = chance - 1
print ("Chance Remain­ing­:", chance)

if chance == 0:
print ("The word was", random­_item)
print ("The score is", score)
 

Math

=
equal
!=
not equal
>
more than
<
less than
>=
more than or equal
<=
less than or equal

Vocabulary

string * number
list of character such as number, letter and symbols
float number
number in decimal
variable
hold a value and can be change
integer number
whole number or counting number
syntax
grammar or structure of language
input
gain inform­ation from user
print
show the inform­ation
value
loop
mudolo
blank
comment
code

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

Example

Print (2) – integer
Print (2.5) – floating point
Print (“Hello”) – string
Print (mystr) – variable
Print (mystr­­,”­H­i­”,­­2,1.0) -- commas

mystr = “Hi”
mystr ← name
“Hi” ← value can change

print (int(1.5)) → 1
print (int(“2”)) → 2
print (float(1)) → 1.0 anything to a float

Modulo­­/R­e­m­ainder %
print (4%2) → 0
print (30%7) → 2
 

multip­lic­ation and exponent

number ** number
math - exponent
number * number
math - multiply
string * number
combine that string

Naming Convention

Rule for giving name
- letter
- numbers
- underscore _

Valid name
- _myStr
- my3
- Hello_­­there

Invalid name
- 3my=”hi” -- cannot start with number

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

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)

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