Python Coding Challenge - Question with Answer (ID 050826)

 

Explanatiom:

1. print() Function

print(...)

The print() function displays the result on the screen.

Whatever value is returned by count() is printed.

2. The String

"Python"

"Python" is a string.

It contains 6 characters.

Index Character

0 P

1 y

2 t

3 h

4 o

5 n

3. The count() Method

"Python".count("")

count() counts how many times a substring appears in a string.

Here, the substring is an empty string ("").

4. Why Does It Return 7?

The empty string exists at every possible position in the string.

|P|y|t|h|o|n|

Positions:

Before P

Between P and y

Between y and t

Between t and h

Between h and o

Between o and n

After n

Since "Python" has 6 characters, there are 7 possible positions.

Therefore,

"Python".count("")

returns

7

5. Final Execution

print("Python".count(""))

count("") returns 7.

print() displays 7 on the screen.

Final Output

7

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