python opens text file with a space between every character

wlindner picture wlindner · Mar 2, 2009 · Viewed 16.2k times · Source

Whenever I try to open a .csv file with the python command fread = open('input.csv', 'r') it always opens the file with spaces between every single character. I'm guessing it's something wrong with the text file because I can open other text files with the same command and they are loaded correctly. Does anyone know why a text file would load like this in python?

Thanks.

Update

Ok, I got it with the help of Jarret Hardie's post

this is the code that I used to convert the file to ascii

fread = open('input.csv', 'rb').read()
mytext = fread.decode('utf-16')
mytext = mytext.encode('ascii', 'ignore')
fwrite = open('input-ascii.csv', 'wb')
fwrite.write(mytext)

Thanks!

Answer

Jarret Hardie picture Jarret Hardie · Mar 2, 2009

The post by recursive is probably right... the contents of the file are likely encoded with a multi-byte charset. If this is, in fact, the case you can likely read the file in python itself without having to convert it first outside of python.

Try something like:

fread = open('input.csv', 'rb').read()
mytext = fread.decode('utf-16')

The 'b' flag ensures the file is read as binary data. You'll need to know (or guess) the original encoding... in this example, I've used utf-16, but YMMV. This will convert the file to unicode. If you truly have a file with multi-byte chars, I don't recommend converting it to ascii as you may end up losing a lot of the characters in the process.

EDIT: Thanks for uploading the file. There are two bytes at the front of the file which indicates that it does, indeed, use a wide charset. If you're curious, open the file in a hex editor as some have suggested... you'll see something in the text version like 'I.D.|.' (etc). The dot is the extra byte for each char.

The code snippet above seems to work on my machine with that file.