Given a text file such as this one called \"sample.txt\": REAL: 45 FAKE: 20 REAL

Question

Given a text file such as this one called "sample.txt":

REAL: 45
FAKE: 20
REAL: -10
FAKE: 30
REAL: 5
FAKE: 40
REAL: 12
FAKE: 50
REAL: 1
FAKE: 60
REAL: -15
FAKE: 70
REAL: 0
FAKE: 80
REAL: 35
FAKE: 90

Can you please help me with the following steps:

1. Use a list comprehension to separate out the lines of the file that start with “REAL:” .

2. Add up the sum of the numbers marked as REAL, and print this out. For the file given above, the output would be:
>>>

The sum of the REAL numbers is 73 .

3. Do this using as few lines of code as possible. The best solution uses 1 line, with a fixed filename (you can assume the name, and don’t have to ask the user).

Explanation / Answer

print "The sum of REAL numbers is " + str((sum([int(each.strip("REAL: ").strip()) for each in open("Sample.txt", "r").readlines() if "REAL" in each]))) + "."

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