Local variables

A variable with local scope can be accessed only within the function/block that it is created in. When a variable is created inside the function/block, the variable becomes local to it. A local variable only exists while the function is executing.

Example

X=50

def test ( ):

y = 20

print "Value of x is â€Ÿ, X, „; y is â€Ÿ , y

print "Value of x is â€Ÿ, X, „ y is „ , y

On executing the code we will get

Value of x is 50; y is 20

The next print statement will produce an error, because the variable y is not accessible outside the function body.

A global variable remains global, till it is not recreated inside the function/block.

Example

x=50

def test ( ):

x=5

y=2

print "Value of x & y inside the function are " , x , y

print "Value of x outside the function is " , x

This code will produce following output:

Value of x & y inside the function are 5 2

Value of x outside the function is 50

If we want to refer to global variable inside the function then keyword global will be prefixed with it.

Example

x=50

def test ( ):

global x

x =2

y = 2

print „Value of x & y inside the function are „ , x , y

print „Value of x outside function is „ , x

This code will produce following output:

Value of x & y inside the function are 2 2

Value of x outside the function is 2

Qus. 1 : What will be the output of the following Python code?<pre>def foo():     return total + 1 total = 0 print(foo())</pre>

0
1
error
none of the mentioned

Qus. 2 : What is the output of the following code?<pre>x = 50 def func (x):     x = 2 func (x) print ('x is now', x)</pre>

x is now 50
x is now 2
x is now 100
Error

Qus. 3 : What is the value of the following Python code?<pre>>>>print(36 / 4)</pre>

Qus. 4 : Given a string x="hello" What is the output of x.count('l')?

2
1
0
none

Qus. 5 : Which of the following functions is a built-in function in pythonn

factorial()
print()
seed()
sqrt()

Qus. 6 : What will be the output of following?<pre>Y=[2,5J,6] Y.sort()</pre>

[2,6,5J]
[5J,2,6]
Error
[6,5J,2]

Qus. 7 : What is the output of the following?<pre>x=123 for i in x:     print(i)</pre><div> </div>

1 2 3
123
Error
none of these

Qus. 8 : Debugging is the process of fixing a______in the software.

procedure
function
bug
None of these

Programs

Python program to convert decimal into other number systems

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python program that generates six random numbers in a sequence created with start stop step

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Python program to illustrate the global variable

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python program to create a function to calculate factorial value

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Python program to find the sum of factorial upto n terms using function

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python program to create a function for reverse the number

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Python program to check number is Palindrome or not using function

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Python program to create a function for calculating sum of digit

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Python program to create recursive function to find factorial

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python function to accept 2 number and return addition subtraction multiplication and division

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python function to accept number of days and return week and days to its equivalent

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python function to extract the day month year from given date

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Python function to find the sum of all numbers between 100 and 500 which are divisible by 2

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Python function to get two matrices and multiply them

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python recursive function to find the sum of digits

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python recursive function to print the reverse of number

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Write a function with name dividebyfive which generate and prints a random integer number from the range 0 to 100 and then return True if the randomly generated number is divisible by 5, and False otherwise.

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