Here is some of the code that I write for Technocamps
You may find these useful if you have been to one of our workshops
Magic 8 Ball
Version 1.0
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# Author : Robert Lutken #
# Date : 18/01/2016 #
# File : MagicEightBall.py #
# Purpose : Demonstration of IF statements in python #
# Version : 1.0 #
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# Use code from the Random Library (Someone else's code)
import random
#Define Computer's Answers
ans1 = "Go For It!"
ans2 = "No way!"
ans3 = "I'm not sure!?"
ans4 = "The universe states that is inconceivable"
ans5 = "That is not possible"
ans6 = "Yes."
# Generate a random number
randomNumber = random.randint(0,6)
#Output start prompt
question = input("Please enter a question: ")
# Calculate response
if randomNumber == 1:
answer = ans1
elif randomNumber == 2:
answer = ans2
elif randomNumber == 3:
answer = ans3
elif randomNumber == 4:
anwer = ans4
elif randomNumber == 5:
answer = ans5
elif randomNumber == 6:
answer = ans6
else :
answer = ans6
print ("You asked the computer:", question)
print ("The computer says:", answer)
input ("Press [Enter] to Exit:")
Version 1.1 – While Loops
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# Author : Robert Lutken #
# Date : 18/01/2016 #
# File : MagicEightBall.py #
# Purpose : Demonstration of While statements in python #
# Version : 1.1 #
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# Use code from the Random Library (Someone else's code)
import random
#Define Computer's Answers
ans1 = "Go For It!"
ans2 = "No way!"
ans3 = "I'm not sure!?"
ans4 = "The universe states that is inconceivable"
ans5 = "That is not possible"
ans6 = "Yes."
# Set user input to 0 so we enter the loop
usrInput = 0
# Loop untill usrInput is not 0
# This says keep doing what ever is indented untill
# usrInput is EQUAL (==) to 0
while usrInput == 0:
# Generate a random number
randomNumber = random.randint(0,6)
#Output start prompt
question = input("Please enter a question: ")
# Calculate response
if randomNumber == 1:
answer = ans1
elif randomNumber == 2:
answer = ans2
elif randomNumber == 3:
answer = ans3
elif randomNumber == 4:
answer = ans4
elif randomNumber == 5:
answer = ans5
elif randomNumber == 6:
answer = ans6
else :
answer = ans6
# Print answer
print ("You asked the computer:", question)
print ("The computer says:", answer)
# Ask if user wants to quit
usrInput = int(input ("Enter 1 to exit or 0 to continue:"))
print ("Exiting....")
Version 1.2 – Functions
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# Author : Robert Lutken #
# Date : 18/01/2016 #
# File : MagicEightBall.py #
# Purpose : Demonstration of Functions in python #
# Version : 1.2 #
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# Use code from the Random Library (Someone else's code)
import random
# Define a function that has a random number passed into it
# The function will calculate as normal then return the answer
def CalculateResponse(randomNumber):
# Calculate response
if randomNumber == 1:
answer = ans1
elif randomNumber == 2:
answer = ans2
elif randomNumber == 3:
answer = ans3
elif randomNumber == 4:
answer = ans4
elif randomNumber == 5:
answer = ans5
elif randomNumber == 6:
answer = ans6
else :
answer = ans6
return answer
#Define Computer's Answers
ans1 = "Go For It!"
ans2 = "No way!"
ans3 = "I'm not sure!?"
ans4 = "The universe states that is inconceivable"
ans5 = "That is not possible"
ans6 = "Yes."
# Set user input to 0 so we enter the loop
usrInput = 0
# Loop untill usrInput is not 0
# This says keep doing what ever is indented untill
# usrInput is EQUAL (==) to 0
while usrInput == 0:
# Generate a random number
randomNumber = random.randint(0,6)
#Output start prompt
question = input("Please enter a question: ")
answer = CalculateResponse(randomNumber)
# Print answer
print ("You asked the computer:", question)
print ("The computer says:", answer)
# Ask if user wants to quit
usrInput = int(input ("Enter 1 to exit or 0 to continue:"))
print ("Exiting....")
A-Level Mock Assessment
Video Tutorial for Task 1
Customers.py
# Only works in Python 3 (Created in 3.4.2)
# tkinter comes as part of the standard install - messagebox has to be imported explicitly
'''
Author : Robert Lutken
Date : 24/03/2016
File : Customers.py
Purpose : Tkinter Customer Information UI for Games Tech Ltd Mock Assesment
Version : 1.0
'''
from tkinter import *
from tkinter import messagebox
'''
SaveDetails
-Gets the information from each of the Tkinter UI elements
-Adds padding to the strings
-Opens File to save
-Writes newly padded details to the file
-Closes the file
Task :
a) Add the appopriate number to pad the variables correctly for:
LN38: ageSave
LN42: dobSave
LN46: postcodeSave
LN48: telSave.ljust
b) Add the filename to save customer details too.
LN52: fileObject = open(...)
'''
def saveDetails() :
# for each field get the value from the screen and pad with spaces or chop if necessary
nameSave= nameVar.get()
nameSave = nameSave.ljust(30)
ageSave = ageVar.get()
ageSave = ageSave.ljust('''#...Add Correct Padding HERE!''')
#25/06/1993
dobSave = dobVar.get()
dobSave = dobSave.ljust('''#...Add Correct Padding HERE!''')
#NP145SW
postCodeSave = postCodeVar.get()
postCodeSave = postCodeSave.ljust('''#...Add Correct Padding HERE!''')
telSave = telVar.get()
telSave = telSave.ljust('''#...Add Correct Padding HERE!''')
#open the file to append - if it's not there it'll be created
fileObject = open('''#... Open The Correct File HERE!''' , "a")
# write to the file with a newline character at the end
fileObject.write(nameSave + ageSave + dobSave + postCodeSave + telSave + "\n")
fileObject.close()
return
'''
CountCustomers
-Validates each of the UI Widgets
-Opens customer details file
-Cycles through each line of the file and places each line in recordVar
-For each line it will check if the UI entry i.e. Rob is found on the line
-Between characters [0:30] which is the padded string for the Name Entry
-Adds up how many "Rob's" have been found
-Displays message box to the user
Task :
a) Add the appopriate number to pad the variables correctly for:
LN90: if len(ageSave) > 0:
LN96: if len(dobSave) > 0:
LN102: if len(postCodeSave) > 0:
LN108: if len(dobSave) > 0:
b) Add the correct validation to ensure that users are between the ages 1 and 99
LN113: if int(ageSave) > 0 or int(ageSave) < 0: c) Add the correct index for each record var when reading each line: LN153 - LN159 if ageSave in recordVar[ ] and not ageSave=="" : ''' def countCustomers() : CustomerCount=0 CountNeeded=0 #get the fields off the screen and validate them nameSave = nameVar.get() if len(nameSave) > 30 :
messagebox.showerror("Error","Too many characters in Name")
return
ageSave =ageVar.get()
'''#... if len(ageSave) > Add Correct Padding Offset HERE :'''
if len(ageSave) > 0:
messagebox.showerror("Error","Too many characters in Age")
return
dobSave = dobVar.get()
'''#... if len(dobSave) > Add Correct Padding Offset HERE':'''
if len(dobSave) > 0:
messagebox.showerror("Error","Too many characters in Dob")
return
postCodeSave = postCodeVar.get()
'''#... if len(postCodeSave) > Add Correct Padding Offset HERE :'''
if len(postCodeSave) > 0:
messagebox.showerror("Error","Too many characters in PostCode")
return
telSave = telVar.get()
'''#... if len(telSave) > Add Correct Padding Offset HERE :'''
if len(telSave) > 0:
messagebox.showerror("Error","Too many characters in Tel")
return
'''if int(ageSave) > Add Correct Range HERE or int(ageSave) < Add Correct Age range HERE:''' if int(ageSave) > 0 or int(ageSave) < 0:
messagebox.showerror("Error","Please enter a valid age!")
if not nameSave == "" :
CountNeeded +=1
if not ageSave == "" :
CountNeeded +=1
if not dobSave == "" :
CountNeeded +=1
if not postCodeSave == "" :
CountNeeded +=1
if not telSave == "" :
CountNeeded +=1
if CountNeeded == 0 :
messagebox.showerror("Error","Please enter something to count! \n" + int(CountNeeded) + " are missing!")
return
# try opening the file for reading
try:
fileObject=open("customerdetails.txt","r")
# if it's not there then say
except IOError:
messagebox.showerror("Error","No file to read")
# if we did open it then let's carry on!
else:
while True:
CountGot=0
recordVar=fileObject.readline()
# Python keeps reading till EOF then returns a blank
if recordVar=="":
fileObject.close()
break
if nameSave in recordVar[0:30] and not nameSave=="" :
CountGot +=1
if ageSave in recordVar[''' Add Correct Index HERE'''] and not ageSave=="" :
CountGot +=1
if dobSave in recordVar[''' Add Correct Index HERE'''] and not dobSave=="":
CountGot +=1
if postCodeSave in recordVar[''' Add Correct Index HERE'''] and not postCodeSave =="":
CountGot +=1
if telSave in recordVar[''' Add Correct Index HERE'''] and not telSave=="":
CountGot +=1
if CountGot == CountNeeded:
CustomerCount +=1
messagebox.showinfo("Information",str(CustomerCount) + " Customer found.")
return
'''
MakeWindow
-Creates global variables for each of the reqiured fields
-Sets up Tkinter Window
-Creates Labels and Entry Widgets
-Adds two buttons and Registers the correct callbacks
a) Add Correct Function Command to Buttons
LN238 - 239: b1= Button(frame2, text=" Save ", command= )
'''
def makeWindow():
#declared my globals here as this is the 1st routine called
# the other routines have to be in front of this one as they get called by it
# and the parser would get upset if they weren't there
#Name
#Age
#DOB
#PostCode
#Tel
global nameVar,ageVar,dobVar,postCodeVar,telVar
#here's my window
win = Tk()
win.wm_title("Games Tech Ltd")
#split into two sections then further split into a grid
frame1=Frame(win)
frame1.pack()
Label(frame1, text="Customer Details", font=("Helvetica 12 bold")).grid(row=0, column=0)
Label(frame1, text="Name").grid(row=1, column=0, sticky=W)
# Setup entry widget for NAME
nameVar=StringVar()
nameEntry= Entry(frame1, textvariable=nameVar)# Set where text is saved
nameEntry.grid(row=1,column=1,sticky=W)
# Label for Age
Label(frame1, text="Age").grid(row=2, column=0, sticky=W)
# Setup entry widget for AGE
ageVar=StringVar()
ageEntry = Entry(frame1, textvariable=ageVar)
ageEntry.grid(row=2,column=1,sticky=W)
# Label for DOB
Label(frame1, text="Date of Birth").grid(row=3, column=0, sticky=W)
# Setup entry for DateOfBirth
dobVar=StringVar()
dobEntry= Entry(frame1, textvariable=dobVar)
dobEntry.grid(row=3,column=1,sticky=W)
# Label for POSTCODE
Label(frame1, text="Post Code").grid(row=4, column=0, sticky=W)
postCodeVar=StringVar()
# Setup entry for POSTCODE
postCodeEntry= Entry(frame1, textvariable=postCodeVar)
postCodeEntry.grid(row=4,column=1,sticky=W)
# Label for Telephone
Label(frame1, text="Telephone").grid(row=5, column=0, sticky=W)
# Setup entry for Telephone
telVar=StringVar()
telEntry= Entry(frame1, textvariable=telVar)
telEntry.grid(row=5,column=1,sticky=W)
frame2 = Frame(win)
frame2.pack()
# build my buttons in the other frame then pack them side by side
b1= Button(frame2, text=" Save ", command='''Add Funciton To Call Here''')
b2= Button(frame2, text=" Count ", command='''Add Funciton To Call Here''')
b1.pack(side=LEFT); b2.pack(side=LEFT)
return win
#this is the main program!
win = makeWindow()
win.mainloop()
Video Tutorial for Part 2
Games.py
# Only works in Python 3 (Created in 3.4.2)
# tkinter comes as part of the standard install - messagebox has to be imported explicitly
'''
Author : Robert Lutken
Date : 28/04/2016
File : Games.py
Purpose : Tkinter Games Information UI for Games Tech Ltd Mock Assesment
Version : 1.0
'''
from tkinter import *
from tkinter import messagebox
'''
SaveDetails
-Gets the information from each of the Tkinter UI elements
-Adds padding to the strings
-Opens File to save
-Writes newly padded details to the file
-Closes the file
'''
def saveGame() :
# for each field get the value from the screen and pad with spaces or chop if necessary
titleSave = titleVar.get()
titleSave = titleSave.ljust(30)
priceSave = priceVar.get()
priceSave = priceSave.ljust(3)
quantitySave = quantityVar.get()
quantitySave = quantitySave.ljust(3)
pegiSave = pegiVar.get()
pegiSave = pegiSave.ljust(3)
genreSave = genreVar.get()
genreSave = genreSave.ljust(20)
publisherSave = publisherVar.get()
publisherSave = publisherSave.ljust(30)
#open the file to append - if it's not there it'll be created
fileObject = open("GameStock.txt","a")
# write to the file with a newline character at the end
fileObject.write(titleSave + priceSave + quantitySave + pegiSave + genreSave + publisherSave + "\n")
fileObject.close()
return
'''
CountCustomers
-Validates each of the UI Widgets
-Opens customer details file
-Cycles through each line of the file and places each line in recordVar
-For each line it will check if the UI entry i.e. Rob is found on the line
-Between characters [0:30] which is the padded string for the Name Entry
-Adds up how many "Rob's" have been found
-Displays message box to the user
'''
def countStock() :
CustomerCount=0
CountNeeded=0
#get the fields off the screen and validate them
titleSave = titleVar.get()
if len(titleSave) > 30 :
messagebox.showerror("Error","Too many characters in Title")
return
priceSave = priceVar.get()
if len(priceSave) > 3:
messagebox.showerror("Error","Too many characters in price")
return
quantitySave = quantityVar.get()
if len(quantitySave) > 3:
messagebox.showerror("Error","Too many characters in Quantity")
return
pegiSave = pegiVar.get()
if len(pegiSave) > 3:
messagebox.showerror("Error","Too many characters in pegi")
return
genreSave = genreVar.get()
if len(genreSave) > 20:
messagebox.showerror("Error","Too many characters in genre")
return
publisherSave = publisherVar.get()
if len(publisherSave) > 30:
messagebox.showerror("Error","Too many characters in publisher")
return
if not titleSave == "" :
CountNeeded +=1
if not priceSave == "" :
CountNeeded +=1
if not quantitySave == "" :
CountNeeded +=1
if not pegiSave == "" :
CountNeeded +=1
if not genreSave == "" :
CountNeeded +=1
if not publisherSave == "" :
CountNeeded +=1
if CountNeeded == 0 :
messagebox.showerror("Error","Please enter something to count! \n" + int(CountNeeded) + " are missing!")
return
# try opening the file for reading
try:
fileObject=open("GameStock.txt","r")
# if it's not there then say
except IOError:
messagebox.showerror("Error","No file to read")
# if we did open it then let's carry on!
else:
while True:
CountGot=0
recordVar=fileObject.readline()
# Python keeps reading till EOF then returns a blank
if recordVar=="":
fileObject.close()
break
if titleSave in recordVar[0:30] and not titleSave=="" :
CountGot +=1
if priceSave in recordVar[30:33] and not priceSave=="" :
CountGot +=1
if quantitySave in recordVar[33:36] and not quantitySave=="":
CountGot +=1
if pegiSave in recordVar[36:39] and not pegiSave =="":
CountGot +=1
if genreSave in recordVar[39:59] and not genreSave=="":
CountGot +=1
if publisherSave in recordVar[59:89] and not publisherSave=="":
CountGot +=1
if CountGot == CountNeeded:
CustomerCount +=1
messagebox.showinfo("Information",str(CustomerCount) + " Customer found.")
return
'''
MakeWindow
-Creates global variables for each of the reqiured fields
-Sets up Tkinter Window
-Creates Labels and Entry Widgets
-Adds two buttons and Registers the correct callbacks
'''
def makeWindow():
#declared my globals here as this is the 1st routine called
# the other routines have to be in front of this one as they get called by it
# and the parser would get upset if they weren't there
global titleVar,priceVar,quantityVar,pegiVar,genreVar,publisherVar
#here's my window
win = Tk()
win.wm_title("Games Tech Ltd")
#split into two sections then further split into a grid
frame1=Frame(win)
frame1.pack()
Label(frame1, text="Game Stock", font=("Helvetica 12 bold")).grid(row=0, column=0)
Label(frame1, text="Game Title").grid(row=1, column=0, sticky=W)
# Setup entry widget for Title
titleVar=StringVar()
titleVar= Entry(frame1, textvariable=titleVar)# Set where text is saved
titleVar.grid(row=1,column=1,sticky=W)
# Label for Price
Label(frame1, text="Price").grid(row=2, column=0, sticky=W)
# Setup entry widget for price
priceVar=StringVar()
priceVar = Entry(frame1, textvariable=priceVar)
priceVar.grid(row=2,column=1,sticky=W)
# Label for quantity
Label(frame1, text="Quantity").grid(row=3, column=0, sticky=W)
# Setup entry for DateOfBirth
quantityVar=StringVar()
quantityVar= Entry(frame1, textvariable=quantityVar)
quantityVar.grid(row=3,column=1,sticky=W)
# Label for Pegi
Label(frame1, text="Pegi").grid(row=4, column=0, sticky=W)
pegiVar=StringVar()
# Setup entry for pegi
pegiVar= Entry(frame1, textvariable=pegiVar)
pegiVar.grid(row=4,column=1,sticky=W)
# Label for Genre
Label(frame1, text="Genre").grid(row=5, column=0, sticky=W)
# Setup entry for Genre
genreVar=StringVar()
genreVar= Entry(frame1, textvariable=genreVar)
genreVar.grid(row=5,column=1,sticky=W)
# Label for Publisher
Label(frame1, text="Publisher").grid(row=6, column=0, sticky=W)
# Setup entry for Publisher
publisherVar=StringVar()
publisherVar= Entry(frame1, textvariable=publisherVar)
publisherVar.grid(row=6,column=1,sticky=W)
frame2 = Frame(win)
frame2.pack()
# build my buttons in the other frame then pack them side by side
b1= Button(frame2, text=" Save ", command=saveGame)
b2= Button(frame2, text=" Count ", command=countStock)
b1.pack(side=LEFT); b2.pack(side=LEFT)
return win
#this is the main program!
win = makeWindow()
win.mainloop()