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Question
Differentiate between the following with the help of an example:
Global and Local variable
Solution
In Python, a variable that is defined outside any function or any block is known as a global variable. It can be accessed in any function defined in the program. Any change made to the global variable will impact all the functions in the program where that variable is being accessed.
A variable that is defined inside any function or block is known as a local variable. It can be accessed only in the function or a block where it is defined. It exists only till the function executes.
Program:
# Global Variable
a = "Hi Everyone!!"
def func():
# Local variable
b = "Welcome"
# Global variable accessed
print(a)
# Local variable accessed
print(b)
func()
# Global variable accessed, return Hi! Everyone
print(a)
# Local variable accessed, will give error: b is not defined
print(b) APPEARS IN
RELATED QUESTIONS
Observe the following program carefully, and identify the error:
mynum = 9
def add9():
mynum = mynum + 9
print mynum
add9() #function callUsing an example showing how a function in Python can return multiple values.
State True or False.
“Variable declaration is implicit in Python.”
"Identifiers are names used to identify a variable or function in a program".
Consider the code given below:
b=100
def test(a):
______________ # missing statement
b=b+a
print (a,b)
test (10)
print (b)Which of the following statements should be given in the blank for #Missing Statement, if the output produced is 110?
