funtionprint  Show information on the screen  int  to tell that what you write is a number  float  change number to be decimal number  str  list of number, letter and symbol 
Additionstr+str  the result combine together  str+ int or float  crash  int/float + int/float  math  addition 
Multiplication and Exponentsstring*string  crash  string*number  combine string together  number*number  mathmultiply  number ** number  mathexponent  string ** string  crash  string**number  crash 
Reverse Wordwhile 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) 
Convert to binarynumb = int(input('enter the number to convert to binary'))
bistring = ''
while numb>0 :
rem = numb%2
bistring = str(rem)+bistring
numb = numb//2
print ('Binary Number : ', bistring) 
Naming ConventionRule for giving name
 letter
 numbers
 underscore _
Valid name
 _myStr
 my3
 Hello_there
Invalid name
 3my=”hi”  cannot start with number
 first name=”hi”
 firstname
 first+name 
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) 
examplePrint (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 
fuctiondef myprint(text) :
print ('xxx'+str(text)+'xxx')
myprint (1)

Function (return number) Ex
def doubleIt (number):
return number *2
print (doubleIt(2))
print (doubleIt('hello'))
myvar = doubleIt(doubleIt(3))
print (myvar)

  symbol==  equal  !=  not equal  >  greater than  <  less than  >=  greater than or equal to  <=  less than or equal to 
Vocabularyvariable  hold a value and can be change  string  a list of character such as number, letter and symbols  integer  a number without decimal  float  number in dicimal  syntax  structure of language  value  returns a list of all the values available in a given dictionary.  while  it's a loop that will go over and over until you stop it  loop  traditionally used when you have a piece of code which you want to repeat n number of times  input  Run the program. In the Shell you should see  print  to show information on the  modulo  leave remainder  #  Comment, no effect  randon.choice  program that someone wrote  import random  to get get a random program from someone  import  to import program from someone  import random + random.choice()  pick random item in the list  palindrome  is derived from the Greek palíndromos, meaning running back again 
Guess word gameimport 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) 
Sort word per linemystr = "Hello"
letter_num = 0
while letter_num < len(mystr):
print (mystr[letter_num])
letter_num = letter_num + 1 
Print Namename = "tim GIRARD"
print (name.upper()) → TIM GIRARD
print (name.lower()) → tim girard
print (name.capitalize()) → Tim girard
print (name.title()) → Tim Girard 
fuctiondef bacon():
print ('bacon')
print ('egg')
print ('text')
print ('gta')
print ('guildwar')
print ('magalodon')
return
bacon()
bacon()

bacon
egg
text
gta
guildwar
magalodon
bacon
egg
text
gta
guildwar
magalodon Exampledef circlearea(r):
pi = 3.1415
area = pir*2
return area
r = input ('enter the radius of the circle : ')
r = float(r)
print ('the area of the circle is', circlearea(r)) 
enter the radius of the circle : 5
the area of the circle is 78.53750000000001
>>> Exampledef circlearea(r):
pi = 3.1415
area = pir*2
return area
r = input ('enter the radius of the circle : ')
r = float(r)
print ('the area of the circle is', circlearea(r)) 
enter the radius of the circle : 5
the area of the circle is 78.53750000000001
>>> 
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