GCSE PYTHON PROGRAMMING

Hi @EM,

Whenever attempting to solve a computing problem I've always found it very useful to first write out what the program does in bullet points in comments. So for example for the rock paper scissors game, I would write out the steps like this:

# Ask the player for their name # Ask the player to choose either rock, paper or scissors # Randomly assign a second variable for the computer for either rock, paper or scissors # Compare the player's choice and the computer's choice and determine who won

Starting with this allows you to translate what you want the computer to do into code very easily, instead of being overwhelmed by the code.

I hope this helps. Please let me know if you have any further questions.

@Sriram A Thank you so much ; this makes a lot more sense. I will attempt the challenge and will post a screenshot.

Hi @EM,

For step 2:

myFile = open("example.txt", "r") # open a text file with reading mode
myList = [] # initializing an empty array for the numbers
for _ in range(6): # 6 numbers to be read
  number = myFile.readline() # reads a single line from the text file
  myList.append(int(number)) #appends the number to a list as an int

print(myList) # displays the list
average = sum(myList)/len(myList) # calculating average of numbers in the list (len() returns how many numbers are in the list)

I hope this helps! Please let me know if you have any further questions.

Hi @EM,

Could you please send me a picture of Challenge 38, so I can see what it is asking for?

With regards to the code you've posted, it seems you want to define a variable called mylist which holds 6 numbers entered by the user. There are many different ways to do this but here is the simplest one I could come up with:

It appends to an array 6 times, asking a user for a number and converting it to an int from a string and appending it to the array mylist.

print("Please enter 6 numbers of your choice.")
mylist = []
for i in range(6):
    number = int(input())
    mylist.append(number)

print(mylist)

Hi @EM,

When you assigned the variables countryOne and countryTwo you assigned them as floats instead of strings, which would cause an error if you tried to enter any letters. Instead you can just leave it as this:

countryOne = input("Please enter your first country")
countryTwo = input("Please enter your second country")

The strings in the dictionary are case sensitive, so you have to make sure you have entered country names exactly as how you have typed them in the dictionary.

Also, I noticed that you used quotation marks for the population of each country in the dictionary. This would cause python to recognize each variable as a string instead of an integer and perform a concatenate operation instead of an addition operation, so 127000000 + 81000000 would produce 12700000081000000 instead of 208000000.

To get around this you can simply remove the quotation marks from the numbers in the dictionary or convert them to integers before adding them (using int()):

countryPop = {"Japan":127000000,"Germany":81000000,"Iran":77000000,"Uk":64000000,"Canada":33000000,"Astralia":23000000,"USA":317000000,"Bulgaria":7000000,"Sweden":10000000}

When you calculate the sum of the populations, you can use the strings entered as dictionary references:

ans = countryPop[countryOne] + countryPop[countryTwo]

I hope this helps! If you have any further questions please ask.

Hey @EM, it has been a while since we have heard from you. Do you still need help on the other challenges? :)

Yes that would be great 👍🏼:)

That's what we are here for :) Apologies, we just saw a bunch of pictures and thought that you wanted us to do it all for you - we've had that before :)

How about you we go through them one at a time. Any time you get stuck, feel free to just post here :). Or if you need a little explanation of how to start, let us know - we are here for you!