Functionsprint() | displays information on the screen. | input() | receives information from the user. | int() | converts a value to an integer. | float() | change number to be decimal number. | str() | a list of number,letter and symbols. | len() | the length of the string. | # | Comment or no effect | long (long integers ) | Also called longs, they are integers of unlimited size, written like integers and followed by an uppercase or lowercase L. | complex (complex numbers) | are of the form a + bJ, where a and b are floats and J (or j) represents the square root of -1 (which is an imaginary number). The real part of the number is a, and the imaginary part is b. Complex numbers are not used much in Python programming. |
Codename = "noey RAWIDA"
print (name.upper())
print (name.lower())
print (name.capitalize())
print (name.title())
Random Codeimport random
mylist = ['Dog','Fish', 'Cat', 'Bear']
counter = 0
while counter < 10:
random_item = random.choice (mylist)
print (random_item)
counter = counter + 1
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Number to Binary Codemystring = "hello"
print (mystring)
firstname = input( "what is your first name?")
lastname = input( "what is your last name?")
fullname = firstname + " " + lastname
print (fullname)
letternumber = int(input( " what is letter number? " ))
if letternumber >len(fullname):
print ( " invalid letter number, try again! " )
else:
letter = ( fullname[letternumber] )
print (letter)
numberletter = int(input( "how many times to print letter " ))
if numberletter >100:
print ( " too many letters to print! " )
else:
print (letter * numberletter )
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Number to Binary Codemystring = "hello"
print (mystring)
firstname = input( "what is your first name?")
lastname = input( "what is your last name?")
fullname = firstname + " " + lastname
print (fullname)
letternumber = int(input( " what is letter number? " ))
if letternumber >len(fullname):
print ( " invalid letter number, try again! " )
else:
letter = ( fullname[letternumber] )
print (letter)
numberletter = int(input( "how many times to print letter " ))
if numberletter >100:
print ( " too many letters to print! " )
else:
print (letter * numberletter )
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Conditionalif | A statement that the writer given a condition | else | A statement that can be combined with an if statement. | elif | A statement that allows you to check multiple expressions for TRUE and execute a block of code as soon as one of the conditions evaluates to TRUE. | while | A statement that acting resembles like a loop. |
Python IdentifierDefinition | is a name used to identify a variable, function, class, module or other object. An identifier starts with a letter A to Z or a to z or an underscore (_) followed by zero or more letters, underscores and digits (0 to 9). |
Python Assignment OperatorsOperator | Description | **E |
Python Assignment Operators | Operator | Description | Example | = | Assigns values from right side operands to left side operand | c = a + b assigns value of a + b into c | +=Add AND | It adds right operand to the left operand and assign the result to left operand | c += a is equivalent to c = c + a | -=Subtract AND | It subtracts right operand from the left operand and assign the result to left operand | c -= a is equivalent to c = c - a | *=Multiply AND | It multiplies right operand with the left operand and assign the result to left operand | c = a is equivalent to c = c a | /=Divide AND | It divides left operand with the right operand and assign the result to left operand | c /= a is equivalent to c = c / ac /= a is equivalent to c = c / a | %=Modulus AND | It takes modulus using two operands and assign the result to left operand | c %= a is equivalent to c = c % a | **=Exponent AND | Performs exponential (power) calculation on operators and assign value to the left operand | c = a is equivalent to c = c a | //=Floor Division | It performs floor division on operators and assign value to the left operand | c //= a is equivalent to c = c // a |
| | Additionstring + string | combine together | string + number | crash | number + number | math - addition |
Multiplication and Exponentsstring * number | combine that string multiple times. | string * string | crash | number * number | math - multiply | string ** string | crash | number ** number | math - exponents | string ** number | crash |
Data TypesInteger | -256, 15 | Float | -253.23, 1.253e-10 | String | " Hel lo", 'Goodbye', " " " Mul til ine " " " | Boolean | True,False | List | [ value, ... ] | Tuple | ( value, ... )1 | Dictionary | { key: value, ... } | Set | { value, value, ... }2 |
Python Shop Codeprint ("welcone to our shop")
price=0
size=('s','m','l','xl')
colour=('red','black','white')
sock=('want','not want')
print (size)
shirt = (input('what shirt size do you want?'))
if shirt == ('s'):
price = price+70
print( "the price now is",price)
elif shirt ==('m'):
price = price+80
print( "the price now is",price)
elif shirt ==('l'):
price = price+90
print( "the price now is",price)
elif shirt ==('xl'):
price = price+100
print( "the price now is",price)
else:
print("our shop doesn't have this size.")
print (colour)
shirtcolour= (input('what colour of shirt do you want?'))
if shirtcolour == ('red'):
price = price+70
print( "the price now is",price)
elif shirtcolour ==('black'):
price = price+80
print( "the price now is",price)
elif shirtcolour ==('white'):
price = price+90
print( "the price now is",price)
else:
print("our shop don't have this colour")
print (size)
pant = (input('what pant size do you want?'))
if pant == ('s'):
price = price+70
print( "the price now is",price)
elif pant ==('m'):
price = price+80
print( "the price now is",price)
elif pant ==('l'):
price = price+90
print( "the price now is",price)
elif pant ==('xl'):
price = price+100
print( "the price now is",price)
else:
print("our shop doesn't have this size.choose again")
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Random Choice Codeimport random
mylist = ['beagle','pomeranian','pug','golden','chihuahua']
score = 0
chances = 3
start_over = 0
random_item = random.choice(mylist)
while chances > 0:
start_over = 0
random_item = random.choice(mylist)
while start_over < 1:
print ("-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-")
print ("Guessing Game")
print ("-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-")
print("words:", mylist)
guess = input("Guess a word: ")
if (guess in mylist):
if(guess == random_item ):
print("That's correct!")
score = score + 100
print("Score:", score)
start_over = 2
else:
print("Sorry, wrong choice! ")
chances = int(chances) -1
else:
print("Sorry, that is not even in the list")
chances = int(chances) -1
if(chances > 0):
print("Chances remaining:",chances)
else:
start_over = 2
print("Game Over! The word was ", random_item)
print("Chance remaining:", chances)
print("Final score:", score)
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Loop list Codedef creatlist(quitword) :
print ('Keep entering words to add to the list')
print ('Quit when word =', quitword)
mylist = []
while True:
user_word = input('Enter a word to add to the list:')
if user_word == quitword
return mylist
duplicateword = False
for item in mylist:
if item == user_word:
duplicateword = True
for item == user_word:
duplicateword = True
if duplicateword == True:
print ('Duplicate Word')
else:
mylist.append(user_word)
userlist = createList("stop")
print(userlist)
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LoopWhile Loop | Repeats a statement or group of statements while a given condition is TRUE. It tests the condition before executing the loop body. | For Loop | Executes a sequence of statements multiple times and abbreviates the code that manages the loop variable. | Nested Loop | You can use one or more loop inside any another while, for or do..while loop. |
Python Variables TypesNumber | String | List | Tuple | Dictionary |
Data Type ConversionFunction | Description | int(x [,base]) | Converts x to an integer. base specifies the base if x is a string. | float(x) | Converts x to a floating-point number. | long(x [,base] ) | Converts x to a long integer. base specifies the base if x is a string. | str(x) | Converts object x to a string representation. | repr(x) | Converts object x to an expression string. | complex(real [,imag]) | Create a complex number. | eval(str) | Evaluates a string and returns an object. | tuple(s) | Converts s to a tuple. | list(s) | Converts s to a list | set(s) | Converts s to a set. | dict(d) | Creates a dictionary, d must be a sequence of (key,value) tuples. | frozenset(s) | Converts to a frozen set. | chr(x) | Converts an integer to a character. | unichr(x) | Converts an integer to a Unicode character. | ord(x) | Converts a single character to its interger value. | hex(x) | Converts an integer to a hexadecimal string. | oct(x) | Converts an interger to an octal string. |
| | Math!= | unequal or not equal to | == | equal to | example;(a == b) is not true. | < | less than | example;(a < b) is true. | > | more than | example;(a > b) is not true. | <= | less than or equal | example;(a <= b) is true. | >= | more than or equal | example;(a >= b) is not true. | % | modulo or find the remainder | <> | If values of two operands are not equal, then condition becomes true. | example;(a <> b) is true. This is similar to != operator. |
Vocabularyvariable | holds a value and can be changed. | string | a list of characters such as numbers, letters, symbols. | integer number | whole number or counting number. | float number | the number in decimal. | syntax | grammar structure of language. | value | the number or the string can be store in valuable. | loop | module | the text for storing for python code. | blank | comment | input | receives information from the user. | code | print | to show information. | syntax error | make possible to the parse | boolean | true/false |
StatementsIf Statement
if expression:
statements
elif expression:
statements
else:
statements
While Loop
while expression:
statements
For Loop
for var in collection:
statements
Counting For Loop
for i in range(s t art, end [, step]):
statements
(start is included; end is not) |
Area of circle Codewhile True:
user_radius = input("What is the radius?")
radius = float(user_radius)
pi = 3.1415
area= pi radius * 2
print ("The area of the circle is", area)
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Codemystring = "hello"
print (mystring)
firstname = input( "what is your first name?")
lastname = input( "what is your last name?")
fullname = firstname + " " + lastname
print (fullname)
letternumber = int(input( " what is letter number? " ))
if letternumber >len(fullname):
print ( " invalid letter number, try again! " )
else:
letter = ( fullname[letternumber] )
print (letter)
numberletter = int(input( "how many times to print letter " ))
if numberletter >100:
print ( " too many letters to print! " )
else:
print (letter * numberletter )
|
Print Codename = "noey RAWIDA"
print (name.upper())
print (name.lower())
print (name.capitalize())
print (name.title())
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List Codeshoppinglist = ['tshirt' , 'pants' , 'socks']
for myvariable in shoppinlist:
print (myvariable)
print (shoppinglist[1])
for number in range(5):
print (number)
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Count Down Code#create a program that receives a number from the user and count down from that number on the same line
#recive the number from the user as a string
user_number= input("enter number")
#convert the user number to an integer
number = int(user_number)
#setup the countdown string
countdown_string = ""
while number > 0:
#add the number to the string
#subtract 1 from the number
countdown_string = countdown_string + str(number) + ""
number = number-1
print (countdown_string)
#output should look like this
# if the user enter 5:
#5 4 3 2 1
#print (countdown_string)
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Random Code 2import random
intlist = [1,2,3,4]
random_int = random.choice(intlist)
print(intlist,random_int)
fplist = [1.0, 2.0, 3.0, 4.0]
random_fp = random.choice(fplist)
print(fplist,random_fp)
strlist =['book','pen','bag','pencil']
random_str = random.choice(strlist)
print (strlist,random_str)
mylist = [1, 1.0, 'beagle' ]
random_item = random.choice(mylist)
print(mylist,random_item)
myvar1 = 1
myvar2 = 2
myvar3 = 3
varlist =[myvar1, myvar2, myvar3]
random_var = random.choice(varlist)
print(varlist,random_var)
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Python Arithmetic OperatorsOperator | Description | Example | + Addition | Adds values on either side of the operator. | a + b = 30 | - Subtraction | Subtracts right hand operand from left hand operand. | a - b = 30 | * Multiplication | Multiplies values on either side of the operator. | a * b = 200 | / Division | Divides left hand operand by right hand operand. | b / a = 2 | % Modulus | Divides left hand operand by right hand operand and returns remainder. | b % a = 0 | ** Exponent | Performs exponential (power) calculation on operators. | a ** b = 10 to the power 20 | // | Floor Division - The division of operands where the result is the quotient in which the digits after the decimal point are removed. | 9//2 = 4 and 9.0/2.0 = 4.0 |
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