In [ ]:

    

# tuples
# read only lists
# ex: days of week,flipkart,jabong


    

In [1]:

    

# defination
weeks = ('sun','mon','tue','wed','thu','fri','sat')


    

In [2]:

    

print type(weeks),weeks


    

    




<type 'tuple'> ('sun', 'mon', 'tue', 'wed', 'thu', 'fri', 'sat')

In [4]:

    

# use case 2
empty_tuple = tuple()
print empty_tuple,type(empty_tuple)


    

    




() <type 'tuple'>

In [6]:

    

# use case 3
empty_tuple = ()
print empty_tuple,type(empty_tuple)


    

    




() <type 'tuple'>

In [8]:

    

my_string = "python"
print my_string,type(my_string)


    

    




python <type 'str'>

In [10]:

    

my_string = ("python")
print my_string,type(my_string)


    

    




python <type 'str'>

In [11]:

    

my_string = ("python",)
print my_string,type(my_string)


    

    




('python',) <type 'tuple'>

In [12]:

    

my_string = "python","linux","java","ruby"
print my_string,type(my_string)


    

    




('python', 'linux', 'java', 'ruby') <type 'tuple'>

In [14]:

    

my_string = "python,linux,java,ruby"
print my_string,type(my_string)


    

    




python,linux,java,ruby <type 'str'>

In [15]:

    

# task
my_fruits = ['apple','banana','cherry','dates']
# my_fruits = ('apple','banana','cherry','dates')


    

In [16]:

    

print tuple(my_fruits)


    

    




('apple', 'banana', 'cherry', 'dates')

In [17]:

    

# tuples - indexing and slicing.


    

In [ ]:

    

# tuples are immutable


    

In [18]:

    

print weeks


    

    




('sun', 'mon', 'tue', 'wed', 'thu', 'fri', 'sat')

In [19]:

    

weeks[0]="sunday"


    

    




---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-19-cf642cc5226b> in <module>()
----> 1 weeks[0]="sunday"

TypeError: 'tuple' object does not support item assignment

In [20]:

    

# packing and unpacking
# lists or tuples - packing.


    

In [21]:

    

my_weeks = ('sun', 'mon', 'tue', 'wed')
# a=sun,b=mon,c=tue,d=wed


    

In [22]:

    

a = my_weeks[0]
print a,type(a)


    

    




sun <type 'str'>

In [23]:

    

# unpacking
a,b,c,d = my_weeks
print a
print b
print c
print d


    

    




sun
mon
tue
wed

In [24]:

    

a,b,c,d,e = my_weeks


    

    




---------------------------------------------------------------------------
ValueError                                Traceback (most recent call last)
<ipython-input-24-580ba9e35292> in <module>()
----> 1 a,b,c,d,e = my_weeks

ValueError: need more than 4 values to unpack

In [25]:

    

a,b,c = my_weeks


    

    




---------------------------------------------------------------------------
ValueError                                Traceback (most recent call last)
<ipython-input-25-beb7bfd6c989> in <module>()
----> 1 a,b,c = my_weeks

ValueError: too many values to unpack

In [26]:

    

# lists and tuples - complex datastructures


    

In [27]:

    

my_student = ['viraja','naimisha','joel','deepti','madhav','hanu','rohit']
my_subjects = ['python','django','puppet','chef','dockers','kubernates','ansibel']


    

In [30]:

    

name='viraja'
print name in my_student
print my_student.index(name)
print my_subjects[my_student.index(name)]


    

    




True
0
python

In [33]:

    

# 
name = raw_input("please enter your name:")
if name in my_student:
    print "{} is going to give {}".format(name,my_subjects[my_student.index(name)])


    

    




please enter your name:rohit
rohit is going to give ansibel

In [34]:

    

# anti-climax
# principle
# junior
my_student.sort()


    

In [35]:

    

#my_student = ['viraja','naimisha','joel','deepti','madhav','hanu','rohit']
#my_subjects = ['python','django','puppet','chef','dockers','kubernates','ansibel']
print my_student
print my_subjects


    

    




['deepti', 'hanu', 'joel', 'madhav', 'naimisha', 'rohit', 'viraja']
['python', 'django', 'puppet', 'chef', 'dockers', 'kubernates', 'ansibel']

In [36]:

    

name = raw_input("please enter your name:")
if name in my_student:
    print "{} is going to give {}".format(name,my_subjects[my_student.index(name)])


    

    




please enter your name:deepti
deepti is going to give python

In [39]:

    

# list of tuples
my_exams = [('viraja','python'),('naimisha','django'),('joel','puppet'),('deepti','chef'),('madhav','dockers')]


    

In [40]:

    

print my_exams


    

    




[('viraja', 'python'), ('naimisha', 'django'), ('joel', 'puppet'), ('deepti', 'chef'), ('madhav', 'dockers')]

In [43]:

    

name = raw_input("please enter your name:")
for student,subject in my_exams:
        if name == student:
            print "{} is going to give exam {}".format(student,subject)


    

    




please enter your name:madhav
madhav is going to give exam dockers

In [50]:

    

# anticlimax
# principle
my_exams.sort()
print my_exams


    

    




[('deepti', 'chef'), ('joel', 'puppet'), ('madhav', 'dockers'), ('naimisha', 'django'), ('viraja', 'python')]

In [45]:

    

name = raw_input("please enter your name:")
for student,subject in my_exams:
        if name == student:
            print "{} is going to give exam {}".format(student,subject)


    

    




please enter your name:madhav
madhav is going to give exam dockers

In [49]:

    

#
print my_exams[0][1]
my_exams[0][1]="aws"


    

    




chef






    




---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-49-ab9185871157> in <module>()
      1 #
      2 print my_exams[0][1]
----> 3 my_exams[0][1]="aws"

TypeError: 'tuple' object does not support item assignment

In [51]:

    

my_exams[0] = ("deepthi","aws")
print my_exams


    

    




[('deepthi', 'aws'), ('joel', 'puppet'), ('madhav', 'dockers'), ('naimisha', 'django'), ('viraja', 'python')]

In [52]:

    

print weeks


    

    




('sun', 'mon', 'tue', 'wed', 'thu', 'fri', 'sat')

In [53]:

    

print dir(weeks)


    

    




['__add__', '__class__', '__contains__', '__delattr__', '__doc__', '__eq__', '__format__', '__ge__', '__getattribute__', '__getitem__', '__getnewargs__', '__getslice__', '__gt__', '__hash__', '__init__', '__iter__', '__le__', '__len__', '__lt__', '__mul__', '__ne__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__rmul__', '__setattr__', '__sizeof__', '__str__', '__subclasshook__', 'count', 'index']

In [ ]: