CODEWITHSUNDEEP
python-3.x
user9871652
user9871652

Reputation:

Why does this return -1 instead of 201?

I have been experimenting with files in Python. I made three:

FilePath_file1 = r'D:\python_CSV\Number1.txt'
FilePath_file2 = r'D:\python_CSV\Number2.txt'
FilePath_fileOP = r'D:\python_CSV\Op.txt'

File1 = open(FilePath_file1,'r')
File2 = open(FilePath_file2,'r')
FileOp = open(FilePath_fileOP,'r')


Number1 = File1.readline()
Number2 = File2.readline()
OpCommand = FileOp.readline()

x = int(Number1)
y = int(Number2)

z = -1
if OpCommand == '+':
    z = x + y

print('The result is:- ',z)

The code keeps returning -1 instead of 201, which is what the answer should be. Why is that?

Upvotes: 0

Views: 37

Answers (1)

Nick
Nick

Reputation: 5190

When you read in your value for OpCommand it is the whole line ++&/**, so matching against the single character + will return false. Hence z is never modified. Even if you have the operator characters on separate lines, readline() includes the newline character, so you need to either remove it or just use OpCommand[0] to match. Replace

if OpCommand == '+':

with

if OpCommand[0] == '+':

Upvotes: 2

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