Codeeval挑战未返回正确的输出。 （蟒蛇）

Question

So I started doing the challenges in codeeval and i'm stuck at an easy challenge called "word to digit"

This is the challenge description:

Having a string representation of a set of numbers you need to print this numbers. All numbers are separated by semicolon. There are up to 20 numbers in one line. The numbers are "zero" to "nine"

input sample:

zero;two;five;seven;eight;four

three;seven;eight;nine;two

output sample:

025784

37892

I have tested my code and it works, but in codeeval the output is always missing the last number from each line of words in the input file.

This is my code:

import sys

def WordConverter(x):
    test=str()
    if (x=="zero"):
        test="0"
    elif (x=="one"):
        test="1"
    elif (x=="two"):
        test="2"
    elif (x=="three"):
        test="3"
    elif (x=="four"):
        test="4"
    elif (x=="five"):
        test="5"
    elif (x=="six"):
        test="6"
    elif (x=="seven"):
        test="7"
    elif (x=="eight"):
        test="8"
    elif (x=="nine"):
        test="9"
    return (test)

t=str()
string=str()
test_cases=open(sys.argv[1],'r')
for line in test_cases:
    string=line.split(";")
    for i in range(0,len(string)):
        t+=WordConverter(string[i])
    print (t)
    t=str()

Am I doing something wrong? Or is it a Codeeval bug?

Answer 1

When iterating over the lines of a file with for line in test_cases: , each value of line will include the newline at the end of the line (if any). This results in the last element of string having a newline at the end, and so this value won't compare equal to anything in WordConverter , causing an empty string to be returned. You need to remove the newline from the string at some point.

Answer 2

You just need to remove the newline char from the input. Replace:

string=line.split(";")

With

string=line.strip().split(";")

However, using string as the variable name is not a good decision...