mylist = []
mylist.append('hello')
print mylist
#outputs
['hello']

people = open('people_data.txt', 'a')
class Data(object):
    def __init__(self, home, mobile, email):
        self.home = home
        self.mobile = mobile
        self.email = email
        self.get_info()
 
    def get_info(self):
        sf = \
"""Home Phone: %s
Mobile Phone: %s
Email: %s
"""
        return sf % (self.home, self.mobile, self.email)
 
 
name_dic = {}
 
# first set of data for testing
name = 'frank millato'
home = '123-456-7890'
mobile = '456-789-0123'
email = 'frank23@gmail.com'
name_dic[name] = Data(home, mobile, email)
 
# second set of data for testing
name = 'bob dork'
home = '234-567-8901'
mobile = '567-690-1234'
email = 'bob.dork@hotmail.com'
name_dic[name] = Data(home, mobile, email)
 
def change_att():
    #c_search = raw_input("Enter name to alter: ")
    c_search = 'bob dork'  # for testing only!!!
    if name_dic.has_key(c_search):
        #c_name = raw_input("What element do you want to change: ")
        c_name = 'email'  # for tesing only!!!
        if c_name == 'email':
            #n_e = raw_input("Enter new email adress: ")
            n_e = 'bob.dork@yahoo.com'  # for testing only!!!
            # make the change
            k = name_dic[c_search]
            name_dic[c_search] = Data(k.home, k.mobile, n_e)
 
# get the info for all names added before change
for key in name_dic:
    print( "Name = %s" % key )
    print( name_dic[key].get_info() )
 
print('-'*40)
 
change_att()
 
# get the info for all names added after change
for key in name_dic:
    print( "Name = %s" % key )
    print( name_dic[key].get_info() )
#and then after sowing it you can append it:
# get the info for all names added after change
for key in name_dic:
    if key not in people.read():
        people.write("Name = %s" % key)
        people.write(name_dic[key].get_info())

people = open('people_data.txt', 'a')
people2 = open('people_data.txt', 'r')
class Data(object):
    def __init__(self, home, mobile, email):
        self.home = home
        self.mobile = mobile
        self.email = email
        self.get_info()
 
    def get_info(self):
        sf = \
"""Home Phone: %s
Mobile Phone: %s
Email: %s
"""
        return sf % (self.home, self.mobile, self.email)
 
 
name_dic = {}
 
# first set of data for testing
name = 'frank millato'
home = '123-456-7890'
mobile = '456-789-0123'
email = 'frank23@gmail.com'
name_dic[name] = Data(home, mobile, email)
 
# second set of data for testing
name = 'bob dork'
home = '234-567-8901'
mobile = '567-690-1234'
email = 'bob.dork@hotmail.com'
name_dic[name] = Data(home, mobile, email)
 
def change_att():
    #c_search = raw_input("Enter name to alter: ")
    c_search = 'bob dork'  # for testing only!!!
    if name_dic.has_key(c_search):
        #c_name = raw_input("What element do you want to change: ")
        c_name = 'email'  # for tesing only!!!
        if c_name == 'email':
            #n_e = raw_input("Enter new email adress: ")
            n_e = 'bob.dork@yahoo.com'  # for testing only!!!
            # make the change
            k = name_dic[c_search]
            name_dic[c_search] = Data(k.home, k.mobile, n_e)
 
# get the info for all names added before change
for key in name_dic:
    print( "Name = %s" % key )
    print( name_dic[key].get_info() )
 
print('-'*40)
 
change_att()
 
# get the info for all names added after change
for key in name_dic:
    print( "Name = %s" % key )
    print( name_dic[key].get_info() )
#and then after sowing it you can append it:
# get the info for all names added after change
for key in name_dic:
    if key not in people2:
        people.write("Name = %s" % key)
        people.write(name_dic[key].get_info())

people = open('people_data.txt', 'a')
people2 = open('people_data.txt', 'r')
#which opens 2 versions of the file, 1 to append and 1 to read to make sure the information is all unique
#and
for key in name_dic:
    if key not in people2:
        people.write("Name = %s" % key)
        people.write(name_dic[key].get_info())
#that checks for previous entries that are the same and then writes entries that aren't
#I cant really explain it, I'm going to have to rely on someone else to make it simple as the list example is my best attempt

# a test setup for pickle dump and load
# note that pickle does not save the class itself
# if the dumped data file is used in another program,
# you need to code a matching class in that program
 
import pickle
 
class Data(object):
    def __init__(self, home, mobile, email):
        self.home = home
        self.mobile = mobile
        self.email = email
        self.get_info()
 
    def get_info(self):
        sf = \
"""Home Phone: %s
Mobile Phone: %s
Email: %s
"""
        return sf % (self.home, self.mobile, self.email)
 
 
name_dic = {}
 
# first set of data for testing
name = 'frank millato'
home = '123-456-7890'
mobile = '456-789-0123'
email = 'frank23@gmail.com'
name_dic[name] = Data(home, mobile, email)
 
# second set of data for testing
name = 'bob dork'
home = '234-567-8901'
mobile = '567-690-1234'
email = 'bob.dork@hotmail.com'
name_dic[name] = Data(home, mobile, email)
 
# get the info for all names before dump
print( "Original data:" )
for key in name_dic:
    print( "Name = %s" % key )
    print( name_dic[key].get_info() )
 
print('-'*40)
 
fname = "PhoneDict.dat"
# pickle dump the dictionary
fout = open(fname, "w")
pickle.dump(name_dic, fout)
fout.close()
 
# delete the name_dic object
del name_dic
 
# pickle load the dictionary
fin = open(fname, "r")
name_dic = pickle.load(fin)
fin.close()
 
# get the info for all names after load
print( "Data dumped and reloaded with module pickle:" )
for key in name_dic:
    print( "Name = %s" % key )
    print( name_dic[key].get_info() )
 
"""
my output -->
Original data:
Name = frank millato
Home Phone: 123-456-7890
Mobile Phone: 456-789-0123
Email: frank23@gmail.com
 
Name = bob dork
Home Phone: 234-567-8901
Mobile Phone: 567-690-1234
Email: bob.dork@hotmail.com
 
----------------------------------------
Data dumped and reloaded with module pickle:
Name = frank millato
Home Phone: 123-456-7890
Mobile Phone: 456-789-0123
Email: frank23@gmail.com
 
Name = bob dork
Home Phone: 234-567-8901
Mobile Phone: 567-690-1234
Email: bob.dork@hotmail.com
"""