Question

This is my code, python. I have to search through the roster list to find a player using their number. it says list index out of range. it also says there is error in my main.

def file_to_dictionary(rosterFile):

myDictionary={}

  

  

with open(rosterFile,'r') as f:

data=f.read().split('\n')

  

  

for line in data:

  

(num,first,last,position)=line.split()

myDict=[first, last, position]

myDictionary[num]=myDict

print (myDictionary)

return myDictionary

file_to_dictionary((f"../data/playerRoster.txt"))

  

def find_by_number(number):

player=None

  

second=[]

foundplayer= False

myDictionary=file_to_dictionary((f"../data/playerRoster.txt"))

for p in myDictionary:

fullplayer=p.split()

second.append([fullplayer[0], (fullplayer[1]+" "+ fullplayer[2]+" "+fullplayer[3])])

  

  

for people in second:

   if int(people[0]) == number:

   player= people[1]

  

  

  

return player

def main():

  

x=0

while x!=-1:

x=int(input("Enter a number for lookup. Or enter -1 to quit."))

  

if find_by_number(x) == None and x !=-1:

print("There is no one with that number...sorry.")

elif find_by_number(x) != None and x != -1:

print (find_by_number(x))

elif x==-1:

print("okay goodbye.")

main()

Answer 1

Short Summary:

Have made some changes and corrected the errors in the code

Have created a sample array and written a file playerRoaster.txt and updated the file path for testing. Please ignore the same and update your file path accordingly.

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Source Code:

#Line number 2 to 7 (below 4 lines) is for testing purpose, please ignore it
L = ["10 Tom Cruise 1\n", "11 John Abraham 2\n", "12 Judith Ram 7\n"]
  
# writing to file
file1 = open('playerRoster.txt', 'w')
file1.writelines(L)
file1.close()
  
def file_to_dictionary(rosterFile):

myDictionary={}

with open(rosterFile,'r') as f:

data=f.read().split('\n')
#Include this to remove empty lines
data.remove("")

for line in data:

#(num,first,last,position)=line.split()
#Assign to a list and then create the vars
list1=line.split()
num=list1[0]
first=list1[1]
last=list1[2]
position=list1[3]
myDict=[first, last, position]

myDictionary[num]=myDict

print (myDictionary)

return myDictionary

file_to_dictionary(("playerRoster.txt"))

  

def find_by_number(number):

player=None

second=[]

foundplayer= False

myDictionary=file_to_dictionary(("playerRoster.txt"))

for p in myDictionary:
#Commenting the below lines as it's wrong way of accessing a dictionery and not required
#fullplayer=p.split()

#second.append([fullplayer[0], (fullplayer[1]+" "+ fullplayer[2]+" "+fullplayer[3])])

#for people in second:

#if int(people[0]) == number:
if int(p) == number:
#player= people[1]
player=myDictionary[p]
return player

def main():

x=0

while x!=-1:

x=int(input("Enter a number for lookup. Or enter -1 to quit."))

  

if find_by_number(x) == None and x !=-1:

print("There is no one with that number...sorry.")

elif find_by_number(x) != None and x != -1:

print (find_by_number(x))

elif x==-1:

print("okay goodbye.")

main()

Code Screenshot:

Output:

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