Question

Chapter 05 Case study Baseball team

For this case study, you’ll use the programming skills that you learn in Murach’s Python Programming to develop a program that helps a person manage a baseball team. This program stores the data for each player on the team, and it also lets the manager set a starting lineup for each game. After you read chapter 2, you can develop a simple program that calculates the batting average for a player. Then, after you complete most of the other chapters, you can enhance and improve this program.

Assignment: Test and debug the program

Specifications

• Create a list of valid entries and the correct results for each set of entries. Then, make sure that the results are correct when you test with these entries.
• Create a list of invalid entries. These should include entries that test the limits of the allowable values. Then, handle the invalid integers (such as negative integers and unreasonably large integers). In addition, make sure the user can’t enter data that doesn’t make sense (such as a player having more hits than at bats).
• Don’t attempt to handle invalid entries that cause exceptions, such as the user entering a string like “x” for an integer value. You can do that after you read chapter 8.
• Please include a screenshot of testing and debugging

Answer 1

#------------- Start of baseball.py -----------------
#baseball.py
#class which stores player details
class Player:
   #constructor
   def __init__(self,name,pos,age,g,ab,r,h):
       #set values if all the values are valid
       res,errs = self.validate(name,pos,age,g,ab,r,h)
       if(res):
           self.name = name
           self.pos = pos
           self.age = age
           self.g = g
           self.ab = ab
           self.r = r
           self.h = h
       else:
           #if not print errors got.
           #set name as - for detecting invalidity
           print("Error(s) Occured: ")
           print(errs)
           print("Failed to Insert\n")
           self.name = "-"
   #function to validate player ffields
   def validate(self,name,pos,age,g,ab,r,h):
       errors = ""
      
       if(not self.validate_pos(pos)):
           errors += "Invalid Position, Positions: P, C, 1B, 2B, 3B, SS, LF, CF, RF, OF, DH, PH, PR\n"
       if(age <= 0 or age >=100):
           errors += "Invalid Age, Age must lies between 1 to 100\n"
       if(g<0 or g > 10000):
           errors += "Invalid Number Of Games Played, It must be 1 to 10000\n"
       if(ab < 0 or ab > 100000):
           errors += "Invalid At Bats\n"
       if(r < 0):
           errors += "Invalid runs\n"
       if(h<0 or h >ab):
           errors += "Invalid Hits\n"
       if(errors == ""):
           return True,""
       else:
           return False,errors
   #function to validate player position
   def validate_pos(self,pos):
       positions = ["P","C","1B","2B","3B","SS","LF","CF","RF","OF","DH","PH","PR"]
       if(pos.upper() in pos):
           return True
       else:
           return False
   #function to cal batting average
   def cal_bat_ave(self):
       return self.h/self.ab
   #function to print player data
   def print_player(self):
       res = "{:18} {:5} {} {:5} {:5} {:5} {:5} {:5.2f}\n"
       print(res.format(self.name,self.pos,self.age,self.g,self.ab,self.r,self.h,self.cal_bat_ave()))
#function that loads the input file
def load_csv(file_name):
   f = open(file_name,"r")
   line = f.readline()
   cols = line.strip().split(",")
   line = f.readline()
   players = []
   while(line):
       pos,name,age,g,ab,r,h = line.strip().split(",")
       #convert to int because data read from text file
       #will be in string format
       age = int(age)
       g = int(g)
       ab = int(ab)
       r = int(r)
       h = int(h)
       player = Player(name,pos,age,g,ab,r,h)
       #if not valid add players to array
       if(player.name != "-"):
           players.append(player)
           print("Successfully Inserted Player:",player.name)
       line = f.readline()
   return players
#function to ask input for player details
#and append them to passed array
def add_player(players):
   name = input("Enter Name : ").strip()
   pos = input("Enter Pos : ").strip()
   age = int(input("Enter Age :").strip())
   g = int(input("Enter No.of Games Played :").strip())
   ab = int(input("Enter No.of At Bats :").strip())
   r = int(input("Enter No.of Runs :").strip())
   h = int(input("Enter No.of Hits :").strip())
   player = Player(name,pos,age,g,ab,r,h)
   if(player.name != "-"):
       players.append(player)
#function to print statistics
def print_stats(players):
   print("\n************************ PLAYERS ********************************\n")
   print("\nName \t\t Pos Age \t G \tAB \tR \tH BA\n")
   for i in range(len(players)):
       players[i].print_player()
   print("\n**********************************************************************");
players = load_csv("baseball.csv")
print_stats(players)

while(True):
   print("1. Add Player")
   print("2. Print Players")
   print("3. Exit")
   ch = int(input("Enter your Choice: "))
   if(ch == 1):
       add_player(players)
   elif(ch == 2):
       print_stats(players)
   elif(ch == 3):
       print("Exiting...")
       break
   else:
       print("Invalid Input")
#------------- End of baseball.py -----------------

------------------------- Input file: baseball.csv --------------------

Pos,Name,Age,G,AB,R,H
C,Josh Phegley,31,69,201,31,52
1B,Matt Olson,25,54,199,30,49
2B,Jurickson Profar,26,78,285,33,62
SS,Marcus Semien,28,88,360,57,97
3B,Matt Chapman,26,86,328,57,87
LF,Robbie Grossman,29,72,228,33,58
CF,Ramon Laureano,24,87,312,48,82
RF,Stephen Piscotty,28,76,297,37,72
DH,Khris Davis,31,70,261,36,63
UT,Chad Pinder,27,61,183,27,46
UT,Mark Canha,30,55,152,35,36
1B,Kendrys Morales,36,34,108,9,22
C,Nick Hundley,35,31,70,5,14
C,Beau Taylor,29,8,19,3,4
2B,Franklin Barreto,23,4,13,2,1
OF,Skye Bolt,25,4,7,1,1
C,Chris Herrmann,31,2,4,1,1
P,Chris Bassitt,30,2,3,0,0
P,Brett Anderson,31,1,3,0,2
P,Daniel Mengden,26,1,2,0,0
P,Frankie Montas,26,1,1,0,0
P,Yusmeiro Petit,34,4,1,0,0
P,Tanner Anderson,26,1,1,0,0

---------------------------- Sample Execution ---------------------

Format the code baseball.py as it is in the images of code posted.

there are only 118 lines of code. copy and paste the code part only . then make indentation of each statement like iin the image and execute.

save the baseball.csv file in the same location baseball.py.