Typhoon2 Typhoon2 - 11 days ago 6
Python Question

Adding element to a dictionary in python?

I'm relatively new here, so please tell me if there is anything I should know or any mistakes I am making manner wise!

I am trying to add things onto a dictionary through random choice, but my code doesn't seem to work!

The file:
sports.txt

Soccer, Joshua
Lacrosse, Naome Lee
Soccer, Kat Valentine
Basketball, Huong
Tennis, Sunny
Basketball, Freddie Lacer


my code so far:

def sportFileOpen():

sportFile = open("sport.txt")
readfile = sportFile.readlines()
sportFile.close()
return(readfile)


def sportCreateDict(sportFile):

sportDict = {}

for lines in sportFile:
(sport, name) = lines.split(",")

if sport in sportDict:
sportDict[sport].append(name.strip())

else:
sportDict[sport] = [name.strip()]


return(sportDict)



def sportRandomPick(name, sport, sportDict):


if sport in sportDict:

ransport = random.choice(sportDict.keys())

sportDict[ransport].append(name)


print(name, "has been sorted into", ransport)


def main():

sportFile = sportFileOpen()

sportDict = sportCreateDict(sportFile)


name = input("Enter the name: ")

preferredSport = input("Which sport do they want? ")

sportRandomPick(name, preferredSport, sportDict)


main()


I am trying to allow a user to input their name and preferred group of sport, and whatever sport they prefer will have a higher chance of being randomly picked then the others (for example if Jason chooses soccer his chances of getting in soccer may double).

I don't expect anyone to write code for me, I know it's time consuming and you have better things to do! But can anyone maybe explain to me how I would go about doing this? I understand how to make random choices but I don't know how I would "double" the chances.

Also I keep getting this error when running my code:
NameError: global name 'random' is not defined


I thought I was doing that part right but now i'm stuck. Can anyone give their two cents on this?

Answer

Try this:

def sportRandomPick(name, sport, sportDict):
    if sport in sportDict:
        ransport = random.choice(list(sportDict.keys()) + [sport]) # list of sports will contain preferred sport twice.

        sportDict[ransport].append(name)

        print(name, "has been sorted into", ransport)

This will increase chances of preferred sport to be picked by 2.

And don't forget to import random

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