Function
print() |
Display an information on the screen |
int() |
Change number to an integer |
float() |
Change number to an decimal number |
input() |
Ask for the information from the user |
str() |
A list of number, letter and symbols |
len() |
Length of the string |
# |
Comment |
''' ''' |
Multiple Line Comment |
Reverse A 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
for letter in word:
reverse = letter + reverse
print ("Reverse: ", reverse)
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Countdown Code
user_number = input("Please enter a number: ")
number = int(user_number)
countdown_string = ''
while number > 0:
countdown_string = countdown_string + str(number)
number = number - 1
print (countdown_string)
List
'''SHOPPING_LIST=['bags','shirts','pants']
list_num=0
while list_num < len(shopping_list)
print(shopping_list[list_num])
list_num = list_num + 1
for item in in shopping lost:
print (item)
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Random
import random
# Create a list of integers
intlist = [1,2,3,4]
random_int = random.choice(intlist)
print (random_int) #print the entire list and the random item
# Create a list of floating point numbers
fplist = [0.2,0.3,0.4]
random_fp = random.choice(fplist)
print (random_fp) #print the entire list and the random item
# Create a list of strings
strlist = ("ABC","DEF","GHI")
random_str = random.choice(strlist)
print (random_str) #print the entire list and the random item
# Create a list of integers and floating point numbers and strings
mylist = (2,3,0.4,"Hello")
random_item = random.choice(mylist)
print (random_item) #print the entire list and the random item
# Create a list of the following variables
myvar1 = 1
myvar2 = 2
myvar3 = 3
varlist = [myvar1, myvar2, myvar3]
random_var = random.choice(varlist)
print (random_var) #print the entire list and the random item
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Operations
== |
equal to |
!= |
no equal to |
< |
less than |
> |
more than |
<= |
less than or equal |
% |
Modulo, Calculate for Remainder |
+ |
Add |
- |
Subtract |
* |
Multiplication |
/ |
Division |
** |
Exponent |
Convert To Hex
while True:
user_number = input("Please enter your number: ")
number = int(user_number)
hex_string = ''
while (number > 0 ):
remainder = number % 16
if remainder == 10:
hex_string = "A" + hex_string
elif remainder == 11:
hex_string = "B" + hex_string
elif remainder == 12:
hex_string = "C" + hex_string
elif remainder == 13:
hex_string = "D" + hex_string
elif remainder == 14:
hex_string = "E" + hex_string
elif remainder == 15:
hex_string = "F" + hex_string
elif remainder < 10:
hex_string = str(remainder) + hex_string
number = number // 16
print ("Hexadeimal string is 0x"+ hex_string)
|
Area Of The Circle Code
while True:
user_radius = input("What is your radius of a circle? ")
radius = float(user_radius)
pi = float(3.1415)
area = (pi) (radius) * 2
print("The area of the circle", area)
|
Upper and Lower Case
name = "one two"
print (name.upper()) → ONE TWO
print (name.lower()) → one two
print (name.capitalize()) → One two
print (name.title()) → One Two
|
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Vocabularty
Variable |
reserved memory locations to store values. This means that when you create a variable you reserve some space in memory |
String |
A list of character such as number, letter and symbols |
Boolean |
True/False |
Integer Number |
Whole Number or Counting Number |
Syntax |
Grammar of Python |
Floating Point |
Number in Decimal |
Example Of Codes
2 – integer
2.5 – floating point
Print (“Hello”) – string
mystring = 123 – variable
Print (mystr,”Hi”,2,1.0) -- commas
mystr = “Hi”
mystr ← variable name
“Hi” ← value that can be change
print (int(1.5)) → 1
print (int(“2”)) → 2
print (float(1)) → 1.0
Modulo/Remainder %
print (4%2) → 0
print (30%7) → 2 |
Multiplication And String
String * Number
Ex. String * 5 = String String String String String
String * String = Crash !
Number * Number = Multiply (Math)
Ex. 5 * 4 = 20
String ** String = CRASH!
Number ** Number = Exponent (Math)
Ex. 5**2 = 25
String ** Number = CRASH!
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Guessing Game
import random
game_over = 1
chances = 5
score = 0
word = ['Dog','Cat','Fish','Pig','Elephant']
random_word = random.choice(word)
while game_over != 0:
print ("Word:",(word))
guess_word = input("Guess a word: ")
if guess_word == random_word:
print ("That's Correct Guess!")
print ("------------------------------------------------------")
score = score + 100
print ("Score:",(score))
random_word = random.choice(word)
else:
if guess_word != random_word:
chances = chances - 1
print ("Chances Remaining:",chances)
if guess_word in word:
print ("Sorry,Wrong Choice!")
print ("------------------------------------------------------")
else:
print ("Sorry That is not even in the list")
print ("------------------------------------------------------")
if chances == 0:
game_over = 0
print ("Game Over!")
print ("The word was",(random_word))
print ("Final Score:",(score))
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