Convert the following Infix expression to its equivalent Postfix expression, showing the stack contents for each step of conversion:

A + B * C ^ D – E

Write a statement in Python to open a text file WRITEUP.TXT so that new content can be written in it .

Write a statement in Python to open a text file README.TXT so that existing content can be read from it.

Write a method/function ISTOUPCOUNT() in python to read contents from a text file WRITER>TXT, to count and display the occurrence of the word “IS” or “TO” or “UP”.

For example:

If the content of the file is

IT IS UP TO US TO TAKE CARE OF OUR SURROUNDING. IT IS NOT POSSIBLE ONLY FOR THE GOVERNMENT TO TAKE RESPONSIBILITY

The method/function should display

Count of IS TO and UP is 6

Write a method/function AEDISP() in python to read lines from a text file WRITER.TXT, and display those lines, which are starting either with A or starting with E.

Considering the following definition of class STOCK, write a method/function COSTLY() in pyhton to search and display Name and Price from a pickled file STOCK.DAT, where Price of the items are more than 1000.

class Stock:
  def __init__(self, N, P):
    self.Name=N
    self.Price=P
  def Show(self) :
    print self.Name, "@", self.Price

Considering the following definition of class DOCTORS, write a method/function SPLDOCS() in python to search and display all the content from a pickled file DOCS.DAT, where Specialisation of DOCTORS is “CARDIOLOGY”.

class DOCTORS:
def __init__(self,N,S):
  self.Name=N
  self.Specialisation=S
def Disp(self):
  print self.Name, "#", self.Specialication

Differentiate between Syntax Error and Run-Time Error? Also, write a suitable example in Python to illustrate both.

Name the Python Library modules which need to be imported to invoke the following functions:

(i) sin() (ii) search ()

Rewrite the following code in python after removing all syntax error(s). Underline each correction done in the code.

Val = int(rawinput("Value:"))
Adder = 0

for C in range(1,Val,3)
    Adder+=C
    if C%2=0:
        Print C*10
    Else:
        print C*
print Adder

Find and write the output of the following python code:

Data  = ["P",20,"R",10,"S",30]
Times = 0
Alpha = ""
Add   = 0
for C in range(1,6,2):
    Times= Times + C
    Alpha= Alpha + Data[C-1]+"$"
    Add = Add + Data[C]
    print Times,Add,Alpha

Find and write the output of the following python code:

class GRAPH:
    def __init__(self,A=50,B=100):
        self.P1=A
        self.P2=B
    def Up(self,B):
        self.P2 = self.P2 - B
    def Down(self,B):
        self.P2 = self.P2 + 2*B
    def Left(self,A):
        self.P1 = self.P1 - A
    def Right(self,A):
        self.P1 = self.P1 + 2*A
    def Target(self):
        print "(",self.P1.":",self.P2,")"
G1=GRAPH(200,150)
G2=GRAPH()
G3=GRAPH(100)
G1.Left(10)
G2.Up(25)
G3.Down(75)
G1.Up(30)
G3.Right(15)
G1.Target()
G2.Target()
G3.Target()

What possible outputs(s) are expected to be displayed on screen at the time of execution of the program from the following code? Also specify the maximum values that can be assigned to each of the variables BEGIN and LAST.

import random
POINTS=[20,40,10,30,15];
POINTS=[30,50,20,40,45];
BEGIN=random.randint(1,3)
LAST=random.randint(2,4)
for C in range(BEGIN,LAST+1):
print POINTS[C],”#”,

(i) 20#50#30#           (ii) 20#40#45#
(iii) 50#20#40#         (iv) 30#50#20#

What is the advantage of super() function in inheritance? Illustrate the same with the help of an example in Python.

class Vehicle:                        #Line 1
    Type = 'Car'                      #Line 2
    def __init__(self, name):         #Line 3
        self.Name = name              #Line 4
    def Show(self):                   #Line 5
        print self.Name,Vehicle.Type  #Line 6

V1=Vehicle("BMW")                     #Line 7
V1.Show()                             #Line 8
Vehicle.Type="Bus"                    #Line 9
V2=Vehicle("VOLVO")                   #Line 10
V2.Show()                             #Line 11

(i) What is the difference between the variable in Line 2 and Line 4 in the above Python code?

(ii) Write the output of the above Python code.

Define a class CONTAINER in Python with following specifications

Instance Attributes
- Radius,Height   # Radius and Height of Container
- Type            # Type of Container
- Volume          # Volume of Container

Methods
- CalVolume()     # To calculate volume
                  # as per the Type of container
                  # With the formula as given below:

- GetValue()       # To allow user to enter values of
                   # Radius, Height and Type.
                   # Also, this method should call
                   # CalVolume() to calculate Volume
- ShowContainer()  # To display Radius, Height, Type
                   # Volume of the Container

Answer the questions (i) to (iv) based on the following:

Class Top1(object):
    def __init__(self,tx): #Line 1
        self.X=tx              #Line 2
    def ChangeX(self,tx):
        self.X=self.X+tx
    def ShowX(self):
        print self.X
Class Top2(object):
    def __init__(self,ty): #Line 3
        self.Y=ty              #Line 4
    def ChangeY(self,ty):
        self.Y=self.Y+ty
    def ShowY(self):
        print self.Y,
class Bottom(Top1,Top2):
    def __init__(self,tz): #Line 5
        self.Z = tz #Line 6
        Top2.__init__(self,2*tz) #Line 7
        Top1.__init__(self,3*tz) #Line 8
    def ChangeZ(self,tz):
        self.Z=self.Z+tz
        self.ChangeY(2*tz)
        self.ChangeX(3*tz)
    def ShowZ(self):
        print self.Z,
        self.ShowY()
        self.ShowX()
    B=Bottom(1)
    B.ChangeZ(2)
    B.ShowZ()

(i) Write the type of the inheritance illustrated in the above.

(ii) Find and write the output of the above code.

(iii) What are the methods shown in Line 1, Line 3 and Line 5 are known as?

(iv) What is the difference between the statements shown in Line 6 and Line 7?

Consider the following randomly ordered numbers stored in a list
786, 234, 526, 132, 345, 467,
Show the content of list after the First, Second and Third pass of the bubble sort method used for arranging in ascending order ?
Note: Show the status of all the elements after each pass very clearly underlining the changes.

Write definition of a method ZeroEnding(SCORES) to add all those values in the list of SCORES, which are ending with zero (0) and display the sum.
For example,
If the SCORES contain [200,456,300,100,234,678]
The sum should be displayed as 600

Write AddClient(Client) and DeleteCleint(Client) methods in python to add a new Client and delete a Client from a List of Client Names, considering them to act as insert and delete operations of the queue data structure.

Write definition of a Method COUNTNOW(PLACES) to find and display those place
names, in which there are more than 5 characters.
For example:
If the list PLACES contains
[“DELHI”,”LONDON”,”PARIS”,”NEW YORK”,”DUBAI”]
The following should get displayed
LONDON
NEW YORK

Evaluate the following Postfix notation of expression:
22,11,/,5,10,*,+,12,-

Write a statement in Python to open a text file STORY.TXT so that new contents can be added at the end of it.

Write a method in python to read lines from a text file INDIA.TXT, to find and display the occurrence of the word “India”.
For example:
If the content of the file is

“India is the fastest growing economy. 
India is looking for more investments around the globe.
The whole world is looking at India as a great market. 
Most of the Indians can foresee the heights that India is
capable of reaching.”

The output should be 4

Considering the following definition of class MULTIPLEX, write a method in python to search and display all the content in a pickled file CINEMA.DAT, where MTYPE is matching with the value ‘Comedy’.

class MULTIPLEX:
    def __init__(self,mno,mname,mtype):
        self.MNO = mno
        self.MNAME = mname
        self.MTYPE = mtype
    def Show(self):
        print self.MNO:"*",self.MNAME,"$",self.MTYPE

Which of the following can be used as valid variable identifier(s) in Python?
(i) 4thSum
(ii) Total
(iii) Number#
(iv) Data

Name the Python Library modules which need to be imported to invoke the following functions
(i) floor()
(ii) randint()

Rewrite the following code in python after removing all syntax error(s). Underline
each correction done in the code.

STRING=""WELCOME
NOTE""
for S in range[0,8]:
    print STRING(S)
print S+STRING

Find and write the output of the following python code:

TXT   = ["20","50","30","40"]
CNT   = 3
TOTAL = 0
for C in [7,5,4,6]:
    T = TXT[CNT]
    TOTAL = float (T) + C
    print TOTAL
    CNT-=1

Find and write the output of the following python code:

class INVENTORY:
    def __init__(self,C=101,N="Pad",Q=100): #constructor
        self.Code=C
        self.IName=N
        self.Qty=int(Q);
    def Procure(self,Q):
        self.Qty = self.Qty + Q
    def Issue(self,Q):
        self.Qty -= Q
    def Status(self):
        print self.Code,":",self.IName,"#",self.Qty
I1=INVENTORY()
I2=INVENTORY(105,"Thumb Pin",50)
I3=INVENTORY(102,"U Clip")
I1.Procure(25)
I2.Issue(15)
I3.Procure(50)
I1.Status()
I3.Status()
I2.Status()

What are the possible outcome(s) executed from the following code? Also
specify the maximum and minimum values that can be assigned to variable N.
import random
NAV = ["LEFT","FRONT","RIGHT","BACK"];
NUM = random.randint(1,3)
NAVG = ""
for C in range(NUM,1,-1):
    NAVG = NAVG+NAV[I]
print NAVG

List four characteristics of Object Oriented programming.

class Exam:
   Regno=1
   Marks=75
   def __init__(self,r,m): #function 1
       self.Regno=r
       self.Marks=m
   def Assign(self,r,m): #function 2
       Regno = r
       Marks = m
   def Check(self): #function 3
       print self.Regno, self.Marks
       print Regno, Marks

(i) In the above class definition, both the functions – function 1 as well
as function 2 have similar definition. How are they different in execution?
(ii) Write statements to execute function 1 and function 2.

Define a class BOX in Python with following specifications

Instance Attributes
- BoxID   # Numeric value with a default value 101
- Side   # Numeric value with a default value 10
- Area   # Numeric value with a default value 0
Methods:
- ExecArea() # Method to calculate Area as
             # Side * Side
- NewBox() # Method to allow user to enter values of
           # BoxID and Side. It should also
           # Call ExecArea Method
- ViewBox() # Method to display all the Attributes

Differentiate between static and dynamic binding in Python? Give suitable examples of each.

Write two methods in python using concept of Function Overloading (Polymorphism) to perform the following operations:
(i) A function having one argument as Radius, to calculate Area of Circle as 3.14#Radius#Radius
(ii) A function having two arguments as Base and Height, to calculate Area of right angled triangle as 0.5#Base#Height .

What will be the status of the following list after the First, Second and Third pass of the bubble sort method used for arranging the following elements in ascending order ?
Note: Show the status of all the elements after each pass very clearly underlining the changes.
52, 42, -10, 60, 90, 20

Write definition of a method EvenSum(NUMBERS) to add those values in the list of NUMBERS, which are odd.

Write Addnew(Member) and Remove(Member) methods in python to Add a new Member and Remove a Member from a List of Members, considering them to act as INSERT and DELETE operations of the data structure Queue.

Write definition of a Method MSEARCH(STATES) to display all the state names
from a list of STATES, which are starting with alphabet M.
For example:
If the list STATES contains
[“MP”,”UP”,”WB”,”TN”,”MH”,”MZ”,”DL”,”BH”,”RJ”,”HR”]
The following should get displayed
MP
MH
MZ

Evaluate the following Postfix notation of expression:
4,2,*,22,5,6,+,/,-

Differentiate between file modes r+ and rb+ with respect to Python.

Write a method in python to read lines from a text file MYNOTES.TXT, and display
those lines, which are starting with an alphabet ‘K’.

Considering the following definition of class FACTORY, write a method in Python to search and display the content in a pickled file FACTORY.DAT, where FCTID is matching with the value ‘105’.

class Factory:
    def __init__(self,FID,FNAM):
        self.FCTID = FID # FCTID Factory ID
        self.FCTNM = FNAM # FCTNM Factory Name
        self.PROD = 1000 # PROD Production
    def Display(self):
        print self.FCTID,":",self.FCTNM,":",self.PROD

Out of the following, find those identifiers, which can not be used for naming Variable or Functions in a Python program:
Total*Tax, While, class, switch,
3rdRow, finally, Column31, _Total

Name the Python Library modules which need to be imported to invoke the following functions
(i) sqrt()
(ii) dump()

Rewrite the following code in python after removing all syntax error(s). Underline each correction done in the code.

for Name in [Ramesh,Suraj,Priya]
    IF Name[0]='S':
        print(Name

Find and write the output of the following python code:

Values=[10,20,30,40]
for Val in Values:
    for I in range(1, Val%9):
        print(I,"*",end= "" )
    print()

Find and write the output of the following python code:

class Book:
    def __init__(self,N=100,S="Python"): #constructor
        self.Bno=N
        self.BName=S
    def Assign(self, N,S):
        self.Bno= self.Bno + N
        self.BName= S + self.BName
    def ShowVal(self):
        print(self.Bno,"#",self.BName)
s=Book()
t=Book(200)
u=Book(300,"Made Easy")
s.ShowVal()
t.ShowVal()
u.ShowVal()
s.Assign(5, "Made ")
t.Assign(15,"Easy ")
u.Assign(25,"Made Easy")
s.ShowVal()
t.ShowVal()
u.ShowVal()

What are the possible outcome(s) executed from the following code? Also specify the maximum and minimum values that can be assigned to variable PICKER.

import random
PICKER=random.randint(0,3)
COLOR=["BLUE","PINK","GREEN","RED"];
for I in COLOR:
    for J in range(1,PICKER):
        print(I,end="")
    print()

What is the difference between Multilevel and Multiple inheritance? Give suitable examples to illustrate both.

What will be the output of the following python code considering the following set
of inputs?
AMAR
THREE
A123
1200
Also, explain the try and except used in the code.
Start=0
while True:
    try:
        Number=int(raw_input(“Enter Number”))
        break
    except ValueError:
    Start=Start+2
    print(“Reenter an integer”)
print(Start)

Write a class CITY in Python with following specifications

Instance Attributes
-Ccode     # Numeric value
-CName     # String value
-Pop       # Numeric value for Population
-KM        # Numeric value
-Density   # Numeric value for Population Density
Methods:
-DenCal()  # Method to calculate Density as Pop/KM
-Record()  # Method to allow user to enter values
           Ccode,CName,Pop,KM and call DenCal() method
-View()    # Method to display all the members
           also display a message ”Highly Populated City”
           if the Density is more than 10000

How do we implement abstract method in python? Give an example for the same.

What is the significance of super() method? Give an example for the same.

What will be the status of the following list after the First, Second and Third pass of the selection sort method used for arranging the following elements in descending order?
Note: Show the status of all the elements after each pass very clearly underlining the changes.
12, 14, 54, 64, 90, 24

For a given list of values in descending order, write a method in python to search for a value with the help of Binary Search method. The method should return position of the value and should return ‐1 if the value not present in the list.

Write Insert(City) and Delete(City) methods in python to add City and Remove City considering them to act as Insert and Delete operations of the data structure Queue.

Write a method in python to find and display the prime numbers between 2 to N. Pass N as argument to the method.

Evaluate the following postfix notation of expression. Show status of stack after every operation.
12,2,/,34,20,-,+,5,+

Write a statement in Python to perform the following operations:
● To open a text file “MYPET.TXT” in write mode
● To open a text file “MYPET.TXT” in read mode

Write a method in python to write multiple line of text contents into a text file daynote.txt line.

Consider the following definition of class Employee, write a method in python to search and display the content in a pickled file emp.dat, where Empno is matching with ‘A0005’.

class Employee:
    def __init__(self,E,NM):
        self.Empno=E
        self.EName=NM
    def Display(self):
        print(self.Empno,"-",self.EName)

How is __init( ) __different from __del ( )__ ?

Name the function/method required to
(i) check if a string contains only alphabets
(ii) give the total length of the list.

Rewrite the following code in python after removing all syntax error(s). Underline each correction done in the code.

def Sum(Count) #Method to find sum
    S=0
    for I in Range(1,Count+1):
        S+=I
    RETURN S
print Sum[2] #Function Call
print Sum[5]

Find and write the output of the following python code :

for Name in ['John','Garima','Seema','Karan']:
    print Name
    if Name[0]== 'S':
        break
else :
    print 'Completed!'
print 'Weldone!'

Find and write the output of the following python code:

class Emp:
    def __init__(self,code,nm): #constructor
        self.Code=code
        self.Name=nm
    def Manip (self) :
        self.Code=self.Code+10
        self.Name='Karan'
    def Show(self,line):
        print self.Code,self.Name,line
s=Emp(25,'Mamta')
s.Show(1)
s.Manip()
s.Show(2)
print s.Code+len(s.Name)

What are the possible outcome(s) executed from the following code? Also specify the maximum and minimum values that can be assigned to variable COUNT.

TEXT="CBSEONLINE"
COUNT=random.randint(0,3)
C=9

while TEXT[C]!='L':
    print TEXT[C]+TEXT[COUNT]+'*',
    COUNT=COUNT+1
    C=C1
(i)         (ii)        (iii)        (iv)
EC*NB*IS*   NS*IE*LO*   ES*NE*IO*    LE*NO*ON*

Illustrate the concept inheritance with the help of a python code

What will be the output of the following python code ? Explain the try and except used in the code.

A=0
B=6
print 'One'
try:
    print 'Two'
    X=B/A
    Print 'Three'
except ZeroDivisionError:
    print B*2
    print 'Four'
except:
    print B*3
    print 'Five'

Write a class PHOTO in Python with following specifications:
Instance Attributes

-Pno       # Numeric value
-Category  # String value
-Exhibit   # Exhibition Gallery with String value
Methods:
-FixExhibit()  # A method to assign Exhibition
               # Gallery as per Category as
               # shown in the following table

Register()  # A function to allow user
            # to enter values of Pno, Category
            # and call FixExhibit() method
ViewAll{)   # A function to display all the data
            # members

What is operator overloading with methods? Illustrate with the help of an example using a python code.

Write a method in python to display the elements of list twice, if
it is a number and display the element terminated with ‘*’ if it is
not a number.
For example, if the content of list is as follows :
MyList=[‘RAMAN’,’21’,’YOGRAJ’, ‘3’, ‘TARA’]
The output should be
RAMAN*
2121
YOGRAJ*
33
TARA*

What will be the status of the following list after fourth pass of bubble sort and fourth pass of selection sort used for arranging the following elements in descending order ?
34,6,12,3,45,25

Write a method in python to search for a value in a given list (assuming that the elements in list are in ascending order) with the help of Binary Search method. The method should return -1, if the value not present else it should return position of the value present in the list.

Write PUSH (Names) and POP (Names) methods in python to add Names and Remove names considering them to act as Push and Pop operations of Stack.

Write a method in python to find and display the composite numbers between 2 to N. Pass N as argument to the method.

Evaluate the following postfix notation of expression. Show status of stack after every operation.
34,23,+,4,5,*,-

Differentiate between the following:
(i) f = open (‘diary. txt’, ‘a’)
(ii) f = open (‘diary. txt’, ‘w’)

Write a method in python to read the content from a text file story.txt line by line and display the same on screen.

Consider the following definition of class Student. Write a method in python to write the content in a pickled file student.dat

class Student:
    def_init_(self,A,N} :
        self.Admno=A
        self.Name=N
    def Show(self}:
        print (self.Admno, "#" , self.Name}

Which of the following can be used as valid variable identifier(s) in Python
(i) total
(ii) 7Salute
(iii) Que$tion
(iv) global

Name the Python Library modules which need to be imported to invoke the
following functions
(i) ceil()       (ii) randint()

Rewrite the following code in python after removing all syntax error(s). Underline each correction done in the code

TEXT=""GREAT
DAY""
for T in range[0,7]:
    print TEXT(T)
print T+TEXT

Find and write the output of the following Python code:

STR = ["90","10","30","40"]
COUNT = 3
SUM = 0
for I in [1,2,5,4]:
    S = STR[COUNT]
    SUM = float (S)+I
    print SUM
    COUNT-=1

Find and write the output of the following python code:

class ITEM:
    def __init__(self,I=101,N="Pen",Q=10): #constructor
        self.Ino=I
        self.IName=N
        self.Qty=int(Q);
    def Buy(self,Q):
        self.Qty = self.Qty + Q
    def Sell(self,Q):
        self.Qty -= Q
    def ShowStock(self):
        print self.Ino,":",self.IName,"#",self.Qty
I1=ITEM()
I2=ITEM(100,"Eraser",100)
I3=ITEM(102,"Sharpener")
I1.Buy(10)
I2.Sell(25)
I3.Buy(75)
I3.ShowStock()
I1.ShowStock()
I2.ShowStock()

What are the possible outcome(s) executed from the following code? Also specify the maximum and minimum values that can be assigned to variable N. import random

SIDES=["EAST","WEST","NORTH","SOUTH"];
N=random.randint(1,3)
OUT=""
for I in range(N,1,-1):
    OUT=OUT+SIDES[I]
print OUT
(i) SOUTHNORTH   (ii) SOUTHNORTHWEST
(iii) SOUTH      (iv) EASTWESTNORTH

List four characteristics of Object Oriented programming.

class Test:
    rollno=1
    marks=75
    def __init__(self,r,m): #function 1
        self.rollno=r
        self.marks=m
    def assign(self,r,m): #function 2
        rollno = n
        marks = m
    def check(self): #function 3
        print self.rollno,self.marks
    print rollno,marks

(i) In the above class definition, both the functions – function 1 as well as function
2 have similar definition. How are they different in execution?
(ii) Write statements to execute function 1 and function 2.

Define a class RING in Python with following specifications

Instance Attributes
- RingID  # Numeric value with a default value 101
- Radius  # Numeric value with a default value 10
- Area    # Numeric value
Methods:
- AreaCal()  # Method to calculate Area as
             # 3.14*Radius*Radius
- NewRing()  # Method to allow user to enter values of
             # RingID and Radius. It should also
             # Call AreaCal Method
- ViewRing() # Method to display all the Attributes