i have 2 lists of strings with the same length but when i write them to a file where each item appear on separate lines in the file, they length of the list and file do not match:
print len(x) print len(y) 317858 317858
However when i write each item in the list to a text file: the number of lines in the text file do not match to length of the list.
with open('a.txt', 'wb') as f:
for i in x[:222500]:
print >> f, i
in linux, wc -l a.txt gives 222499 which is right.
with open('b.txt', 'wb') as f:
for i in y[:222500]:
print >> f, i
in linux, wc -l b.txt gives 239610 which is wrong.
when i vi b.txt in the terminal, it did have 239610 lines so i am quite confused as to why this is happening..
How can i debug this?
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Answer
The only possible way for finding more lines in b.txt than the number of string written is that some of the strings in y actually contain new lines.
Here is a small example
l = [ 'a', 'bnc']
print len(l)
with open('tst.txt', 'wb') as fd:
for i in l:
print >> fd, i
This little code will print 2 because list l contains 2 elements, but the resulting file will contain 3 lines:
a b c