python - How to Add an Index to an Index -

ok. first time asking question please don't complicated me. trying set python program takes list of 3 different categories of scores: quizzes, programs, , tests, , puts them in list. code looks this:

quiz_grades = int(input("how many quiz grades? "))  program_grades = int(input("how many program grades? "))  tests = int(input("how many tests? "))  def main():  globalconstantlist = [quiz_grades, program_grades, tests]  scorelist = [0] * (quiz_grades + program_grades + tests)  returnedscoreslist = getgrades(globalconstantlist,scorelist)  #totallist(totalscore[scores])  #useroutput()  print(returnedscoreslist)   def getgrades(globalconstantlist,scorelist):      eachscore in globalconstantlist:      #totalscorelist = 0.0      index = 0          index in range(quiz_grades):              print("what score quiz", index + 1)              scorelist[index] = float(input())          index in range(program_grades):              print("what score program", index + 1)              scorelist[index] = float(input())          index in range(tests):              print("what score test", index + 1)              scorelist[index] = float(input())          return scorelist   main() 

(sorry if has not been placed in code sample- fyi syntax correct.)

here's issue: every time run code, add quiz_grades values scorelist[] list quiz_grades for-loop, when run program_grades for-loop, take out original values (from quiz_grades) , put in program_grades). example, if enter 99, 98, , 97 quiz scores, , 96 program score, erase initial 99 , place in 96. there way can fill in entire scorelist without erasing of values?

i think should appending list:

scorelist.append(float(input())) 

in every loop, assuming scorelist empty when function starts. thus, code should become:

def main():     globalconstantlist = [quiz_grades, program_grades, tests]     # scorelist = [0] * (quiz_grades + program_grades + tests)     returnedscoreslist = getgrades(globalconstantlist)     #totallist(totalscore[scores])     #useroutput()     print(returnedscoreslist)  def getgrades(globalconstantlist):     scorelist = []     eachscore in globalconstantlist:         #totalscorelist = 0.0         index = 0         in range(quiz_grades):             index += 1             print("what score quiz", index)             scorelist.append(float(input()))         in range(program_grades):             index += 1             print("what score program", index)             scorelist.append(float(input()))         in range(tests):             index += 1             print("what score test", index)             scorelist.append(float(input()))     return scorelist  main() 

alternatively use start , stop parameters of range():

def main():     globalconstantlist = [quiz_grades, program_grades, tests]     scorelist = [0] * (quiz_grades + program_grades + tests)     returnedscoreslist = getgrades(globalconstantlist, scorelist)     #totallist(totalscore[scores])     #useroutput()     print(returnedscoreslist)  def getgrades(globalconstantlist, scorelist):     eachscore in globalconstantlist:         #totalscorelist = 0.0         #index = 0 <-- not needed         index in range(quiz_grades):             print("what score quiz", index + 1)             scorelist[index] = float(input())         imin = quiz_grades         index in range(imin, program_grades + imin):             print("what score program", index + 1)             scorelist[index] = float(input())         imin += program_grades         index in range(imin, tests + imin):             print("what score test", index + 1)             scorelist[index] = float(input())     return scorelist  main()