In [1]:

    

class FordFiesta():
    pass

    def __init__(self, color='black'):
        self.color = color


    

In [2]:

    

my_car = FordFiesta()
my_car, my_car.color


    

    
Out[2]:





(<__main__.FordFiesta instance at 0xb4cd9bac>, 'black')

In [3]:

    

your_car = FordFiesta()
your_car, your_car.color


    

    
Out[3]:





(<__main__.FordFiesta instance at 0xb4cd9e8c>, 'black')

In [4]:

    

my_car is your_car


    

    
Out[4]:





False

In [5]:

    

my_car.color is your_car.color


    

    
Out[5]:





True

In [6]:

    

another_car = FordFiesta('black')
another_car, another_car.color


    

    
Out[6]:





(<__main__.FordFiesta instance at 0xb4cc960c>, 'black')

In [7]:

    

my_car.color is another_car.color


    

    
Out[7]:





True

In [8]:

    

s = '''
;lksa;lkjarpoeit;lkfdn;sh wv;omriwjglirns;dfkjewwww;slkmjes;rjtr.lksd;ls
;lsakjda ;rlkjwre;gijwpojls hwnsdfkjdf vkihgkesaf sfdknkjfiugrlkjfdlkjh 
dlkdslklkdsldspoirew98u5c3498mu98mu4y6vphegwijgew oijgtwijgtrpoijwnfds
mpu wgec3pe3pitcwgpi,iiiiiy5epoijgtroijreoijrewpoijtrpojtrtrpojjpjotrpo
 wwj gjgtrcjtcppjgtcpojiiire;oijse;roij;oreijger;oijer;glkjrgf;lkjdg;sd
 pwqeiupqoewiuwpetiuwepoiuwerpoupwiurwpeoriuewporiuewrpoiuewrpowutpweiu
 p98u34p08u409324u70439840987324029387520394872043987324098237409238745
 '''


    

In [9]:

    

s[:]


    

    
Out[9]:





'\n;lksa;lkjarpoeit;lkfdn;sh wv;omriwjglirns;dfkjewwww;slkmjes;rjtr.lksd;ls\n;lsakjda ;rlkjwre;gijwpojls hwnsdfkjdf vkihgkesaf sfdknkjfiugrlkjfdlkjh \ndlkdslklkdsldspoirew98u5c3498mu98mu4y6vphegwijgew oijgtwijgtrpoijwnfds\nmpu wgec3pe3pitcwgpi,iiiiiy5epoijgtroijreoijrewpoijtrpojtrtrpojjpjotrpo\n wwj gjgtrcjtcppjgtcpojiiire;oijse;roij;oreijger;oijer;glkjrgf;lkjdg;sd\n pwqeiupqoewiuwpetiuwepoiuwerpoupwiurwpeoriuewporiuewrpoiuewrpowutpweiu\n p98u34p08u409324u70439840987324029387520394872043987324098237409238745\n '

In [10]:

    

my_car = FordFiesta(s[:])
my_car, my_car.color


    

    
Out[10]:





(<__main__.FordFiesta instance at 0xb4cc9b6c>,
 '\n;lksa;lkjarpoeit;lkfdn;sh wv;omriwjglirns;dfkjewwww;slkmjes;rjtr.lksd;ls\n;lsakjda ;rlkjwre;gijwpojls hwnsdfkjdf vkihgkesaf sfdknkjfiugrlkjfdlkjh \ndlkdslklkdsldspoirew98u5c3498mu98mu4y6vphegwijgew oijgtwijgtrpoijwnfds\nmpu wgec3pe3pitcwgpi,iiiiiy5epoijgtroijreoijrewpoijtrpojtrtrpojjpjotrpo\n wwj gjgtrcjtcppjgtcpojiiire;oijse;roij;oreijger;oijer;glkjrgf;lkjdg;sd\n pwqeiupqoewiuwpetiuwepoiuwerpoupwiurwpeoriuewporiuewrpoiuewrpowutpweiu\n p98u34p08u409324u70439840987324029387520394872043987324098237409238745\n ')

In [11]:

    

your_car = FordFiesta(s[:])
your_car, your_car.color


    

    
Out[11]:





(<__main__.FordFiesta instance at 0xb4cd6eec>,
 '\n;lksa;lkjarpoeit;lkfdn;sh wv;omriwjglirns;dfkjewwww;slkmjes;rjtr.lksd;ls\n;lsakjda ;rlkjwre;gijwpojls hwnsdfkjdf vkihgkesaf sfdknkjfiugrlkjfdlkjh \ndlkdslklkdsldspoirew98u5c3498mu98mu4y6vphegwijgew oijgtwijgtrpoijwnfds\nmpu wgec3pe3pitcwgpi,iiiiiy5epoijgtroijreoijrewpoijtrpojtrtrpojjpjotrpo\n wwj gjgtrcjtcppjgtcpojiiire;oijse;roij;oreijger;oijer;glkjrgf;lkjdg;sd\n pwqeiupqoewiuwpetiuwepoiuwerpoupwiurwpeoriuewporiuewrpoiuewrpowutpweiu\n p98u34p08u409324u70439840987324029387520394872043987324098237409238745\n ')

In [12]:

    

my_car is your_car


    

    
Out[12]:





False

In [13]:

    

my_car.color is your_car.color


    

    
Out[13]:





True

In [14]:

    

my_car = FordFiesta(s[:] + 'just one bite more')
my_car, my_car.color


    

    
Out[14]:





(<__main__.FordFiesta instance at 0xb4cd6dcc>,
 '\n;lksa;lkjarpoeit;lkfdn;sh wv;omriwjglirns;dfkjewwww;slkmjes;rjtr.lksd;ls\n;lsakjda ;rlkjwre;gijwpojls hwnsdfkjdf vkihgkesaf sfdknkjfiugrlkjfdlkjh \ndlkdslklkdsldspoirew98u5c3498mu98mu4y6vphegwijgew oijgtwijgtrpoijwnfds\nmpu wgec3pe3pitcwgpi,iiiiiy5epoijgtroijreoijrewpoijtrpojtrtrpojjpjotrpo\n wwj gjgtrcjtcppjgtcpojiiire;oijse;roij;oreijger;oijer;glkjrgf;lkjdg;sd\n pwqeiupqoewiuwpetiuwepoiuwerpoupwiurwpeoriuewporiuewrpoiuewrpowutpweiu\n p98u34p08u409324u70439840987324029387520394872043987324098237409238745\n just one bite more')

In [15]:

    

your_car = FordFiesta(s[:] + 'just one bite more')
your_car, your_car.color


    

    
Out[15]:





(<__main__.FordFiesta instance at 0xb4cd632c>,
 '\n;lksa;lkjarpoeit;lkfdn;sh wv;omriwjglirns;dfkjewwww;slkmjes;rjtr.lksd;ls\n;lsakjda ;rlkjwre;gijwpojls hwnsdfkjdf vkihgkesaf sfdknkjfiugrlkjfdlkjh \ndlkdslklkdsldspoirew98u5c3498mu98mu4y6vphegwijgew oijgtwijgtrpoijwnfds\nmpu wgec3pe3pitcwgpi,iiiiiy5epoijgtroijreoijrewpoijtrpojtrtrpojjpjotrpo\n wwj gjgtrcjtcppjgtcpojiiire;oijse;roij;oreijger;oijer;glkjrgf;lkjdg;sd\n pwqeiupqoewiuwpetiuwepoiuwerpoupwiurwpeoriuewporiuewrpoiuewrpowutpweiu\n p98u34p08u409324u70439840987324029387520394872043987324098237409238745\n just one bite more')

In [16]:

    

my_car is your_car


    

    
Out[16]:





False

In [17]:

    

my_car.color == your_car.color


    

    
Out[17]:





True

In [18]:

    

my_car.color is your_car.color


    

    
Out[18]:





False

In [19]:

    

id(my_car.color), id(your_car.color)


    

    
Out[19]:





(172695232, 172603200)