python opens text file with a space between every character

问题

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!

回答1:

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.

回答2:

The file is encoded in some unicode encoding, but you are reading it as ascii. Try to convert the file to ascii before using it in python.

回答3:

Isn't csv a simple txt file with values separated with comma. Just try to open it with a text editor to see if the file is correctly formed.

回答4:

To read an encoded file, you can simply replace open with codecs.open.

fread = codecs.open('input.csv', 'r', 'utf-16')

回答5:

It did never ocurred to me, but as truppo said, it must be something wrong with the file.

Try to open the file in Excel/BrOffice Calc and Save As the file as Csv again.

If the problem persists, try a subset of the data: fist 10/last 10/intermediate 10 lines of the file.

回答6:

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!

回答7:

Open the file in binary mode, 'rb'. Check it in a HEX Editor and check for null padding '00'. Open the file in something like Scintilla Text Editor to check the characters present in the file.

回答8:

Here's the quick and easy way, esp if python won't parse the input correctly

sed 's/ \(.\)/\1/g'

来源：https://stackoverflow.com/questions/603115/python-opens-text-file-with-a-space-between-every-character