python I/O help

[quinnifir]

ok. i am making this program called Human_Data to store peoples info on your computer. bwahaha.
i need help with opening and reading peoples info, stored in a profile class. i am also confused with instances of classes.
here is the code.

#----------------------------------|
#Copyright Muffinware 2011         |
#Human Data and all Muffinware     |
#products are trademarked to       |
#Muffinware.net and all its        |
#sub domains.                      |
#  ~~~                             |
#  \_/                             |
#----------------------------------|

import sys
import pickle

class Profile():

   def __init__(self):
      self.firstname = ""
      self.lastname = ""
      self.age = ""
      self.gender = ""
      self.haircolor = ""
      self.eyecolor = ""
      self.height = ""
      self.weight = ""
      self.notes = "" 
      
   def make_firstname(self):
      self.firstname = raw_input('First Name: ')

   def make_lastname(self):
      self.lastname = raw_input('Last Name: ')

   def make_age(self):
      self.age = raw_input('Age: ')

   def make_gender(self):
      self.gender = raw_input('Gender (male or female): ')

   def make_haircolor(self):
      self.haircolor = raw_input('Hair Color: ')

   def make_eyecolor(self):
      self.eyecolor = raw_input('Eye Color: ')

   def make_height(self):
      self.height = raw_input('Height (in inches please): ')

   def make_weight(self):
      self.weight = raw_input('Weight: ')

   def make_notes(self):
      self.notes = raw_input('Any other notes on the person?: ')

   def display(self):
      
      print ""
      print ""
      print self.lastname+", "+self.firstname
      print "is "+self.age
      print "is "+self.gender
      print "has "+self.haircolor+" hair"
      print "has "+self.eyecolor+" colored eyes"
      print "is "+self.height+" inches tall"
      print "is "+self.weight+" pounds"
      print "Notes: "+self.notes

   def change(self, change):
      if change == "firstname":
         profile.make_firstname()
      elif change == "lastname":
         profile.make_lastname()
      elif change == "age":
         profile.make_age()
      elif change == "gender":
         profile.make_gender()
      elif change == "haircolor":
         profile.make_haircolor()
      elif change == "eyecolor":
         profile.make_eyecolor()
      elif change == "height":
         profile.make_height()
      elif change == "weight":
         profile.make_weight()
      elif change == "notes":
         profile.make_notes()
      else:
         print "please try again later"

   def save(self):
      profilefile = open(self.firstname+self.lastname, "w")
      pickle.dump(self, profilefile)
      profilefile.close()

   def open(self, first, last):
      file_name = first+last
   
      f = open(file_name, "r")
      profile = pickle.load(f)
      
      
      


if __name__ == "__main__":
   print "welcome to human data!"
   x = 4
   while x == 4:
      profile = Profile()
      print "would you like to: create a new profile (1), view existing ones (2), or exit (3)"
      pick = input(': ')
      if pick == 1:
                     
            profile.make_firstname()
            profile.make_lastname()
            profile.make_age()
            profile.make_gender()
            profile.make_haircolor()
            profile.make_eyecolor()
            profile.make_height()
            profile.make_weight()
            profile.make_notes()

            profile.display()

            a = True
            
            while a:
               print "Are these facts ok? Y/N "
               choice = raw_input('')
               if choice == "n":
                  print "what yould you like to change?"
                  print "no spaces please, (like eyecolor rather than eye color)"
                  change = raw_input('')
                  profile.change(change)
           
               elif choice == "y":
                  a = False
                  print "saving..."
                  profile.save()
               

      elif pick == 2:
         first = raw_input('first name:')
         last = raw_input('last name:')
         profile.open(first, last)         
         profile.display()
         print "would you like to change anything? Y/N"
         choice = raw_input(': ')
         if choice == "y":
            print "no spaces please!"
            change = raw_input('What would you like to change?: ')
            profile.change(change)

         elif choice == "n":
            print "OK then!"
            break
      elif pick == 3:
         sys.exit(0)

[quinnifir]

i need help in the open function. THANKS!

[TrustyTony]

I do not like much your style and I am not OO guru, but this at least shows the info if you happen to guess correct name exactly (I did it to use only lowercase to make it little easier):

---- snip, snip ---------
   def open(self, first, last):
      file_name = (first+last).lower()
      f = open(file_name, "r")
      self = pickle.load(f)
      return self
---- snip, snip ---------

      elif pick == 2:
         first = raw_input('first name:')
         last = raw_input('last name:')
         profile = profile.open(first, last)
         profile.display()
---- snip, snip ---------

[quinnifir]

thanks! it works! but what does .lower() do?

[woooee]

See examples for pickle here. Pickle stores Python objects, like a dictionary. In order to load a pickle file, you first have to dump it in pickle format. So, first check that the file exists. Other than that, I have no idea what " need help in the open function" means.

[TrustyTony]

It makes the letters all lowercase so if user capitalizes one time the name and next time not, it is still found.