CS-Python Functions Exercises3 Scope Variables

1) Find and write the output of the following python code :

def Call(P = 40, Q = 20):

    P = P + Q

    Q = P - Q 

    print(P, '@', Q)

    return P

R = 200

S = 100

R = Call(R, S)

print(R, '@', S) 

S = Call(S)

print(R, '@', S)

2) Consider the following code and write the flow of execution for this. Line numbers have been given for your reference.

1. def power(b, p):

2.  y = b ** p

3.  return y

4. 

5. def calcSquare(x):

6.  a = power(x, 2)

7.  return a

8.

9.  n = 5

10. result = calcSquare(n)

11. print(result)

3) What will be the output of following program?

num = 1 def myfunc():     return num print(num) print(myfunc()) print(num)

num = 1 def myfunc():     num = 10     return num print(num) print(myfunc()) print(num)

 

4) What will be the output of following program?

def display():     print("Hello", end='') display() print("there!")

num = 1 def myfunc():     global num     num = 10     return num print(num) print(myfunc()) print(num)

5) Consider the code below and answer the questions that follow :

def multiply(number1, number2):

    answer = number1 * number2

    print(number1, 'times', number2, '=', answer)

    return(answer)

output = multiply(5, 5)

 

(i) When the code above is executed, what prints out ?

(ii) What is variable output equal to after the code is executed ?

6) Draw the entire environment, including all user-defined variables at the time line 10 is being executed.

1. def sum(a, b, c, d):

2.      result = 0

3.      result = result + a + b + c + d 

4.      return result

5. 

6. def length():

7.      return 4

8. 

9. def mean(a, b, c, d):

10.     return float(sum(a, b, c, d))/length()

11. 

12. print(sum(a, b, c, d), length(), mean(a, b, c, d))

7) Find and write the output of the following python code :

a = 10 def call():     global a     a = 15     b = 20     print(a) call()

V = 25 def Fun(Ch):     V = 50     print(V, end = Ch)     V *= 2     print(V, end = Ch) print(V, end = "*") Fun("!") print(V)

8) Predict the output of the Python code given below:

9) What will be the output of the following code?

c = 10

def add():

global c

c = c + 2

print(c,end='#')

add()

c=15

print(c,end='%') 

10) Consider the code given below and find correct output:

a=5 def add(b=2): global a a=a+b print(a,'#',b) return a b=add(a) print(a,'#',b) b=add(b) print(a,'#',b)	x=5 def function1(): global x y=x+x*2 print(y,end=”,”) x=7 function1() print(x)
x = 5 def func2():         x = 3        global x        x = x + 1        print(x)    print(x)	x = 50 def func():       global x       print('x is', x)       x = 2        print('Changed global x to', x) func() print('Value of x is', x)

11) Predict the output of the Python code given below:

value = 50 def display(N): global value value = 25 if N%7==0: value=value+N else: value=value-N print(value, end="#") display(20) print(value)

L = [5,10,15,1] G = 4 def Change(X): global G N=len(X) for i in range(N): X[i] += G Change(L) for i in L: print(i,end='$')

12) Predict the output of the Python code given below:

x = 25 def modify(s, c=2): global x for a in s: if a in 'QWEiop': x //= 5 print(a.upper(),'@',c*x) else: x += 5 print(a.lower(),'#',c+x) string = 'We' modify(string,10) print(x, '$', string)

v = 50 def Change(n):        global v        v, n = n, v        print(v, n, sep = “#”, end = “@”) Change(20) print(v)

13) What will be the output of the following code?

x = 4 def reset(): global x x = 2 print(x, end='&') def update(): x += 3 print(x, end='@') update() x = 6 reset() print(x, end='$')	sal = 5000 def inc_sal(per): global sal inc = sal * (per / 100) sal += inc inc_sal(10) print(sal,end='%') sal=6000 print(sal,end='$')
def fun():        a=10        print(a) a=5 fun() print(a)	def fun():       global a       a=10       print(a) a=5 fun() print(a)

14) Write the output of the code given below:

p=5 def sum(q,r=2): global p p=r+q**2 print(p, end= '#') a=10 b=5 sum(a,b) sum(r=5,q=1)	total=0 def add(a,b): global total total=a+b print(total) add(6,6) print(total)
total=20 price=50 def add(a, b): global price total=a+b price=(a+b)/2 print(total, price) add(6,6) print(total, price)	a=10 b=20 def change( ):       global b       a=45       b=56 change( ) print(a) print(b)
p=5 def sum(q,r=2): global p p=r+q**2 print(p, end= ‘#’) a=10 b=5 print(p, end = ‘#’) sum(a,b) sum(r=5,q=1) print(p, end = ‘#’)	z= 100 def f( ): global z print('z is:', z) z=50 print('New value of global z is:', z) f( ) print('Value of z is:', z)
def fun(): a=20 print(a) def fun2(): global a a=30 print(a) a=10 fun() print(a) fun2() print(a)	def fun(): global a a=10 y=a print(“inside”,a) print(“y=”,y) a=5 fun() print(“outside”,a)
def fun(a): a=10 print(a) a=5 fun(a) print(a)	def fun(): global a a=10 y=a print(“inside”,a) print(“y=”,y) a=5 fun() print(“outside”,a)
a=10 def call(): global a a=15 b=20 print(a) call()	def Update(X=10): X += 15 print( ‘X = ‘, X) X=20 Update() print( ‘X = ‘, X)
def fun(): a=10 y=globals()[‘a’] print(“inside”,a) print(“y=”,y) a=5 fun() print(“outside”,a)	def func(x,y=2): g=5 x=x-y; g=g*10; print(x,y,g) g=7 h=10 func(g,h) print(g,h) func(g) print(g,h)
g=10 def func(x,y=10): x=x-y y=x*10 z=x+y+g return z g=func(g,15) print(g) g=func(g) print(g)	a=3 def demo(x,y): global a a=x+y z=a+y y+=x print(x,y,z) b=5 demo(a,b) print(a,b) demo(a,b)
def pa(a,b,c): x=4; c+=x; c*=globals() [‘x’] b+=c return a,b,c y=1 x=2 z=5 x,y,z=pa(y,x,z) print(x,y,z) y,z,z=(z,y,x) print(x,y,z)