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- # -*- coding: utf-8 -*-
- print "Python Examples\n --By The Tutorial Doctor\n"
- ## PRINTING
- print 'Hello'
- print 'Hello','Editorial'
- # Concatenate/Append text (gives errors if not strings)
- print 'Hello' + 'Folks'
- print 'Hello' + ' Folks' # have to add your own space
- print 27
- # VARIABLES
- #There are different types of variables: character, string, integer, float, boolean, array/list, dictionary, and a few others.
- # A character
- at = "@"
- # A string
- name = 'Jackie'
- # An integer
- favorite_number = 4
- # A float
- height = 6.5
- # A boolean
- IamCool = True
- # You can assign a new value to a variable
- IamCool = False
- # An array
- array_of_colors = ['red','orange','yellow','green','blue','indigo','violet']
- array_of_numbers = [23,13.4,1,782]
- mixed_array = ['Zillow',34.9,True,798]
- # A dictionary
- description = {'eyeColor':'brown','physique':'muscled','demeanor':'confident'}
- print description['eyeColor']
- print description['physique']
- print description['demeanor']
- # EXTRA
- # ID of a variable
- print id(name)
- #####
- # STRINGS
- # A string is string of characters
- ## Empty string
- first_name = ""
- last_name = ""
- ## Asign a value to a string
- first_name = "joe"
- last_name = "shmo"
- occupation = "Truck Driver"
- ## Adding strings (concatenation)
- print first_name + last_name
- ## Adding a space between string variables
- print first_name + " " + last_name
- ## Starting a new line (escape characters)
- print first_name + "\n" + last_name
- ## Adding variables inside of a string (string formatting)
- print "Hello %s" %(first_name)
- ## Multiple variables inside of a string
- print "Hello %s %s" %(first_name,last_name)
- ## There is another way to format strings
- greeting = 'Hello {name}, my name is {myname}'
- print greeting.format(name='Joseph',myname='Joey')
- ## Print a string several times
- print first_name * 4
- ## Get index of a string
- ## Indices begin at 0
- print first_name[0]
- print first_name[1]
- print first_name[2]
- ## A multi-line string
- """Multi-Line strings are sometimes used as multi-line comments, since python doesn't have syntax for multi-line comments."""
- # STRING FUNCTIONS
- print first_name.capitalize()
- print len(occupation)
- #####
- # INTEGERS
- # An integer is a whole number
- number1 = 12
- number2 = 144
- number3 = "67" #not an integer
- #Add
- print number1 + number2
- #Subtract
- print number2 - number1
- #Multiply
- print number1 * number2
- #Divide
- print number2/number1
- #Exponents
- print number2**number1
- #Same
- print pow(number2,number1)
- #Square root
- print number2**(1/2.0)
- #Order of operations
- print (number1 + number2) * 3 + (number1**3)
- # Increment an integer
- number1 = number1 + 1
- print number1
- # Convert a string to an integer
- number3 = int(number3)
- #####
- #FLOAT
- # A float is a decimal. Many of the integer operations can be applied to floats.
- pi = 3.14
- print pi
- #####
- # TUPLES
- ## Tuples are like lists, but cannot be changed (they are immutable).
- x = 0
- y = 1
- ## Create a Tuple
- position = (50,200)
- ## Get tuple index
- print position[x]
- #####
- # LISTS/Array
- # Called a list in python.
- # Create a list
- Clients = ['Cierra','Lisa','Ibrahim','Eric','Nancy','Terry','Sarah']
- print Clients
- Employees = ['Eric','Margaret','Paul','Ole','Yul']
- print Employees
- ### LIST FUNCTIONS
- # List Index
- print Clients[0]
- # List index range
- print Clients[0:4]
- # Append to a list
- Clients.append('Joe')
- print Clients
- #Same as:
- #Clients[len(Clients):] = ['Joe'].
- # Remove from a list
- Clients.remove('Joe')
- print Clients
- # Insert item into a list at a location
- Clients.insert(0,'Lee')
- print Clients
- # Reverse a list
- Clients.reverse()
- print Clients
- # Sort a list
- Clients.sort()
- print Clients
- # Remove an item at a location
- Clients.pop(0)
- print Clients
- # Return the index of an item in the list
- print Clients.index('Lee# Extend a list with another list
- Clients.extend(Employees)
- print Clients
- # Same as:
- #Clients[len(Clients):] = Clients
- # Count how many times an item appears in a list
- print Clients.count('Lisa
- ### EXTRA
- # Loop through a list
- for item in Clients:
- print item
- #Remove a list from a list
- for i in Clients:
- if i in Employees:
- Clients.remove(i)
- print Clients
- #####
- ### DICTIONARIES/Associative array
- # Create a dictionary (dictionary_name = {key:value})
- inventory = {'light':'flashlight'}
- print inventory
- # Print the value of a key
- print inventory['light']
- # Update Dictionary
- inventory.update({'map':'New York'})
- inventory.update({'phone':'Flip Phone'})
- print inventory
- # Update the key if it is already in the dictionary
- inventory.update({'map':'Atlanta'})
- inventory.update({'map':'New York'})
- print inventory['map']
- # Get all keys (outputs as a list)
- print inventory.keys()
- # Get all values (ouptuts as a list)
- print inventory.values()
- # Copy dictionary items as a list of tuples
- # Basically converts a dictionary to a a list of tuples.
- print inventory.items()
- # Length of a dictionary
- print len(inventory)
- # Delete inventory item
- del inventory['map']
- print inventory
- # Iterate over dictionary
- #print iter(inventory)
- #print inventory.iterkeys()
- #print inventory.itervalues()
- # Remove item, and returns its value
- inventory.pop('phone Alternately: inventory.popitem()
- print inventory
- # View keys of a dictionary
- print inventory.viewkeys()
- # View values of a dictionary
- print inventory.viewvalues()
- # View all items in a dictionary
- print inventory.viewitems()
- #####
- ### CONDITIONALS
- on = True
- number = 51
- # If equal to
- if on == True:
- print on
- # Same (for booleans)
- if on:
- print on
- # If not equal to
- if on != False:
- print on
- # If greater than
- if number > 23:
- print number
- # If less than
- if number < 77:
- print number
- #####
- ## BOOLEANS (BEG)
- # if, else, and else if(elif)
- location = 0
- if location == 50:
- print 'Halfway there.'
- elif location > 50 and location < 100:
- print 'More than halfway there.'
- elif location < 50 and location > 0:
- print 'Less than halfway there.'
- elif location == 100:
- print "You are there!"
- elif location < 0:
- print "You're moving in the wrong direction!"
- elif location > 100:
- print "You've gone too far."
- elif location == 0:
- print "You aren't moving!"
- #####
- ### WHILE LOOP
- age = 0
- old_age = 30
- while age < old_age:
- print 'Still young @ ' + str(age)
- age = age + 1
- if age == old_age:
- print "You've reached the pinnacle @ " + str(age)
- #####
- ### FUNCTIONS
- # A function is a group of statements
- IamCool = True
- ### BUILT-IN FUNCTIONS
- # print() - Prints values to the screen
- print(name)
- print(favorite_number)
- # Two ways to print
- print height
- print IamCool,",I am cool"
- print array_of_colors
- print array_of_numbers
- # raw_input() - Gets input from the user
- occupation = raw_input('What is your occupation? ')
- print 'You are a ' + occupation
- # len() - Gets the length of a string
- print(len(name))
- # type() - Gets the type of a value
- print(type(height))
- # str() - Converts a value to a string
- print(type(str(height)))
- # int() - Converts a value to an integer
- print(type(int(height)))
- # list() - Converts a value to a list
- # float() - Converts a value to a float
- # round() - Rounds a number to a given percision
- print(round(height,2))
- print(round(height,1))
- # pow() - Raises a number or integer to a power
- power = pow(height,favorite_number)
- print(power)
- # sum()- sum of all elements in an iterable
- print 'sum of array is',sum(array_of_numbers)
- # help() - prints Python help information
- #help() commented out for now
- # Create a function
- def MyFunction():
- print name
- print height
- print favorite_number
- # Use/Call a function
- MyFunction()
- ## Function arguments
- # One argument
- def Write(first_name):
- print first_name
- Write('Ole')
- # More than one argument (separated by commas)
- def Add(a,b):
- print 'The sum is ' + str(a + b)
- Add(2,3)
- Add(2.89,34.2)
- # Function return
- def Multiply(a,b):
- product = a*b
- return product
- print 'The product is',Multiply(2,89)
- #####
- ### FOR LOOP
- print range(0,10)
- # Loop over a range
- for i in range(0,10):
- print i
- # For each element inside of the range, print the element.
- # Loop over a string
- name = 'Joseph'
- for letter in name:
- print letter
- # Loop over a list
- my_list = ['eggs','milk','bread']
- for item in my_list:
- print item
- #####
- # WHILE LOOP
- i = 1
- while i<11:
- print "uh",i, "and"
- i = i + 1 #increment i
- ### CLASSES
- # A class
- class Fruit():
- def __init__(self,color,taste,type='Fruit'):
- # Member Variables
- self.color = color
- self.taste = taste
- self.type = type
- # A Method
- def eat(self, item):
- print "Eating " + item
- # An object
- apple = Fruit("red","sweet")
- # Accessing member variables
- print(apple.color)
- print(apple.taste)
- print(apple.type) # default value. a non-required argument.
- # Using methods
- apple.eat("vegetables####
- # Try to do something, and if there is an error, do something else
- try:
- print "Hello World"
- except:
- print('Goodbye World')
- # Types of exceptions
- exceptions= """except IOError:
- print('An error occured trying to read the file.')
- except ValueError:
- print('Non-numeric data found in the file.')
- except ImportError:
- print "NO module found"
- except EOFError:
- print('Why did you do an EOF on me?')
- except KeyboardInterrupt:
- print('You cancelled the operation.')
- except:
- print('An error occured.')
- """
- #####
- ### PART 2 ###
- # -*- coding: utf-8 -*-
- # BOOLEANS
- cold = False
- hot = False
- normal = False
- cloudy = False
- partly_cloudy = False
- sunny = False
- temp = 12
- overcast = 68
- if temp < 65:
- cold = True
- if temp > 85:
- hot = True
- if temp > 65 and temp < 85:
- normal = True
- if overcast > 55:
- cloudy = True
- if overcast < 30:
- sunny = True
- if overcast > 30 and overcast < 55:
- partly_cloudy = True
- if (cold and cloudy) and (cold and partly_cloudy):
- print 'Its gonna be a yucky day'
- else:
- print 'Its an okay day out!'
- if (cold and cloudy) or (cold and partly_cloudy):
- print 'Its gonna be a yucky day'
- else:
- print 'Its an okay day out!'
- if hot and sunny:
- print 'Its gonna be steaming!!'
- class Animal():
- # two underscores mean the variable is private
- __name = ""
- __height = 0
- __weight = 0
- __sound = ''
- def __init__(self,name):
- self.__name = name
- def get_name(self):
- print self.__name
- a = Animal('a')
- a.get_name()
- # CONDITIONALS
- adult = False
- miniumum_age = 18
- def CheckAge():
- age = int(raw_input('How old are you: '))
- if age >= miniumum_age:
- adult = True
- print 'You are legal'
- elif age < miniumum_age:
- print 'That is not old enough'
- adult = False
- if not adult:
- CheckAge()
- CheckAge()
- # FUNCTIONS (INTERMEDIATE)
- welcome = 'Welcome to Editorial! '
- response = raw_input('How are you today? ')
- computer_response = 'It seems you are ' + response
- # Create a function
- def PrintSomething():
- print 'Hi'
- # Call the function
- PrintSomething()
- # Function arguments/parameters
- def PrintArgument(argument):
- print argument
- PrintArgument(welcome)
- PrintArgument(computer_response)
- def push_argument(*argparams):
- print argparams
- push_argument('a','b')
- def push_keys(**keyparams):
- print keyparams
- push_keys(ok='right')
- def default_parameters(a='A',b='B'):
- print a,b
- default_parameters(a='Not A',b='Not B')
- def fixed_passed_parameters(a,b):
- print a,b
- fixed_passed_parameters('a','b')
- #String Funtions
- import string
- name = 'john jacob jingleheimer schmidt'
- place = 'Wasington D.C.'
- print place
- place = place.lower()
- print place
- place = place.upper()
- print place
- ## FOMATTING
- formatted_string ='My name is %s' % ('Mr Editorial')
- print formatted_string
- multiVariable_formatted_string = "He crossed the %(blank)s at %(time)d o'clock" % {'blank':'street','time':12}
- print multiVariable_formatted_string
- ## CLASSES
- place = string.capitalize(place)
- print place
- split_name = string.split(name,None,-1)
- print split_name
- joined_split_name = string.join(split_name)
- print joined_split_name
- print string.capwords(joined_split_name,None)
- # -*- coding: utf-8 -*-
- # BETTER WAY
- temperature = -10
- initial_position = 0
- final_destination = 100
- halfway_point = (final_destination-initial_position)/2
- location = ''
- while temperature < final_destination:
- diff = final_destination-temperature
- temperature = temperature + 1
- if temperature == halfway_point:
- location= 'Halfway there.'
- print str(temperature) + ' is ' + location + str(diff) + ' More to go!'
- elif temperature > halfway_point and temperature < final_destination:
- location= 'More than halfway there.'
- print str(temperature) + ' is ' + location + str(diff) + ' More to go!'
- elif temperature < halfway_point and temperature > initial_position:
- location= 'Less than halfway there.'
- print str(temperature) + ' is ' + location + str(diff) + ' More to go!'
- elif temperature == final_destination:
- location= "There!"
- print str(temperature) + ' is ' + location + ' No more to go!'
- elif temperature < initial_position:
- location= "Negative!"
- print str(temperature) + ' is ' + location + str(diff) + ' More to go!'
- elif temperature > final_destination:
- location= "Too far."
- print str(temperature) + ' is ' + location + str(diff) + ' More to go!'
- if temperature >= (temperature-1):
- print 'going in the right direction'
- else:
- print 'Wrong way Josè!'
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