Write a function named calculate_scores

that

takes two parameters, an input file

name

and an

output file

name

.

The input file

has only one column of scores.

The function calculate_scores

will read in the scores from the file and write their

count,

total

,

and average into

the output

file.

Your program should prompt the user to enter a filename. Here is a sample run:

Please enter the input file name: scores.txt

Please enter the output file name: scores.out

The scores.txt has

unspecified

number of scores

and extra blank lines

in the file

:

100

90

.5

95

blank line

80

.2

40

.5

blank line

blank line

...

more scores

After you calculate the

number of scores, total

,

and average from the input file, write the results

to t

he output

file

using

the

string format

. Remember, dont count the blank lines in the input file.

You

r output

file

should look like the following

:

There are 5 scores

The total is 406.20

The average is 81.24

You

will use the main level script

section

to separate your

input s

tatement

s

and function call

from the function definition.

Use string format to format the

total and average to two decimal

places.

Rubric:

Function syntax

-

2

Parameters

-

2

file

open (read/write)

8

file write

-

6

file close

-

4

incorrect

calculation (total, number of scores

, average)

-

12

format string

-

2

main level script section

-

2

call function

-

2

If statement

-

4

for statement

-

4

Total: 4

8

points.