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extracting text from MS word files in python

Posted by: admin November 30, 2017 Leave a comment

Questions:

for working with MS word files in python, there is python win32 extensions, which can be used in windows. How do I do the same in linux?
Is there any library?

Answers:

You could make a subprocess call to antiword. Antiword is a linux commandline utility for dumping text out of a word doc. Works pretty well for simple documents (obviously it loses formatting). It’s available through apt, and probably as RPM, or you could compile it yourself.

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Use the native Python docx module. Here’s how to extract all the text from a doc:

document = docx.Document(filename)
docText = '\n\n'.join([
    paragraph.text.encode('utf-8') for paragraph in document.paragraphs
])
print docText

See Python DocX site

Also check out Textract which pulls out tables etc.

Parsing XML with regexs invokes cthulu. Don’t do it!

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benjamin’s answer is a pretty good one. I have just consolidated…

import zipfile, re

docx = zipfile.ZipFile('/path/to/file/mydocument.docx')
content = docx.read('word/document.xml')
cleaned = re.sub('<(.|\n)*?>','',content)
print cleaned

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OpenOffice.org can be scripted with Python: see here.

Since OOo can load most MS Word files flawlessly, I’d say that’s your best bet.

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I know this is an old question, but I was recently trying to find a way to extract text from MS word files, and the best solution by far I found was with wvLib:

http://wvware.sourceforge.net/

After installing the library, using it in Python is pretty easy:

import commands

exe = 'wvText ' + word_file + ' ' + output_txt_file
out = commands.getoutput(exe)
exe = 'cat ' + output_txt_file
out = commands.getoutput(exe)

And that’s it. Pretty much, what we’re doing is using the commands.getouput function to run a couple of shell scripts, namely wvText (which extracts text from a Word document, and cat to read the file output). After that, the entire text from the Word document will be in the out variable, ready to use.

Hopefully this will help anyone having similar issues in the future.

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Take a look at how the doc format works and create word document using PHP in linux. The former is especially useful. Abiword is my recommended tool. There are limitations though:

However, if the document has complicated tables, text boxes, embedded spreadsheets, and so forth, then it might not work as expected. Developing good MS Word filters is a very difficult process, so please bear with us as we work on getting Word documents to open correctly. If you have a Word document which fails to load, please open a Bug and include the document so we can improve the importer.

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(Note: I posted this on this question as well, but it seems relevant here, so please excuse the repost.)

Now, this is pretty ugly and pretty hacky, but it seems to work for me for basic text extraction. Obviously to use this in a Qt program you’d have to spawn a process for it etc, but the command line I’ve hacked together is:

unzip -p file.docx | grep '<w:t' | sed 's/<[^<]*>//g' | grep -v '^[[:space:]]*$'

So that’s:

unzip -p file.docx: -p == “unzip to stdout”

grep ‘<w:t’: Grab just the lines containing ‘<w:t’ (<w:t> is the Word 2007 XML element for “text”, as far as I can tell)

sed ‘s/<[^<]>//g’*: Remove everything inside tags

grep -v ‘^[[:space:]]$’*: Remove blank lines

There is likely a more efficient way to do this, but it seems to work for me on the few docs I’ve tested it with.

As far as I’m aware, unzip, grep and sed all have ports for Windows and any of the Unixes, so it should be reasonably cross-platform. Despit being a bit of an ugly hack 😉

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If your intention is to use purely python modules without calling a subprocess, you can use the zipfile python modude.

content = ""
# Load DocX into zipfile
docx = zipfile.ZipFile('/home/whateverdocument.docx')
# Unpack zipfile
unpacked = docx.infolist()
# Find the /word/document.xml file in the package and assign it to variable
for item in unpacked:
    if item.orig_filename == 'word/document.xml':
        content = docx.read(item.orig_filename)

    else:
        pass

Your content string however needs to be cleaned up, one way of doing this is:

# Clean the content string from xml tags for better search
fullyclean = []
halfclean = content.split('<')
for item in halfclean:
    if '>' in item:
        bad_good = item.split('>')
        if bad_good[-1] != '':
            fullyclean.append(bad_good[-1])
        else:
            pass
    else:
        pass

# Assemble a new string with all pure content
content = " ".join(fullyclean)

But there is surely a more elegant way to clean up the string, probably using the re module.
Hope this helps.

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Unoconv might also be a good alternative: http://linux.die.net/man/1/unoconv

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I’m not sure if you’re going to have much luck without using COM. The .doc format is ridiculously complex, and is often called a “memory dump” of Word at the time of saving!

At Swati, that’s in HTML, which is fine and dandy, but most word documents aren’t so nice!

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To read Word 2007 and later files, including .docx files, you can use the python-docx package:

from docx import Document
document = Document('existing-document-file.docx')
document.save('new-file-name.docx')

To read .doc files from Word 2003 and earlier, make a subprocess call to antiword. You need to install antiword first:

sudo apt-get install antiword

Then just call it from your python script:

import os
input_word_file = "input_file.doc"
output_text_file = "output_file.txt"
os.system('antiword %s > %s' % (input_word_file, output_text_file))

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Just an option for reading ‘doc’ files without using COM: miette. Should work on any platform.

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If you have LibreOffice installed, you can simply call it from the command line to convert the file to text, then load the text into Python.

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Is this an old question?
I believe that such thing does not exist.
There are only answered and unanswered ones.
This one is pretty unanswered, or half answered if you wish.
Well, methods for reading *.docx (MS Word 2007 and later) documents without using COM interop are all covered.
But methods for extracting text from *.doc (MS Word 97-2000), using Python only, lacks.
Is this complicated?
To do: not really, to understand: well, that’s another thing.

When I didn’t find any finished code, I read some format specifications and dug out some proposed algorithms in other languages.

MS Word (*.doc) file is an OLE2 compound file.
Not to bother you with a lot of unnecessary details, think of it as a file-system stored in a file. It actually uses FAT structure, so the definition holds. (Hm, maybe you can loop-mount it in Linux???)
In this way, you can store more files within a file, like pictures etc.
The same is done in *.docx by using ZIP archive instead.
There are packages available on PyPI that can read OLE files. Like (olefile, compoundfiles, …)
I used compoundfiles package to open *.doc file.
However, in MS Word 97-2000, internal subfiles are not XML or HTML, but binary files.
And as this is not enough, each contains an information about other one, so you have to read at least two of them and unravel stored info accordingly.
To understand fully, read the PDF document from which I took the algorithm.

Code below is very hastily composed and tested on small number of files.
As far as I can see, it works as intended.
Sometimes some gibberish appears at the start, and almost always at the end of text.
And there can be some odd characters in-between as well.

Those of you who just wish to search for text will be happy.
Still, I urge anyone who can help to improve this code to do so.


doc2text module:
"""
This is Python implementation of C# algorithm proposed in:
http://b2xtranslator.sourceforge.net/howtos/How_to_retrieve_text_from_a_binary_doc_file.pdf

Python implementation author is Dalen Bernaca.
Code needs refining and probably bug fixing!
As I am not a C# expert I would like some code rechecks by one.
Parts of which I am uncertain are:
    * Did the author of original algorithm used uint32 and int32 when unpacking correctly?
      I copied each occurence as in original algo.
    * Is the FIB length for MS Word 97 1472 bytes as in MS Word 2000, and would it make any difference if it is not?
    * Did I interpret each C# command correctly?
      I think I did!
"""

from compoundfiles import CompoundFileReader, CompoundFileError
from struct import unpack

__all__ = ["doc2text"]

def doc2text (path):
    text = u""
    cr = CompoundFileReader(path)
    # Load WordDocument stream:
    try:
        f = cr.open("WordDocument")
        doc = f.read()
        f.close()
    except: cr.close(); raise CompoundFileError, "The file is corrupted or it is not a Word document at all."
    # Extract file information block and piece table stream informations from it:
    fib = doc[:1472]
    fcClx  = unpack("L", fib[0x01a2l:0x01a6l])[0]
    lcbClx = unpack("L", fib[0x01a6l:0x01a6+4l])[0]
    tableFlag = unpack("L", fib[0x000al:0x000al+4l])[0] & 0x0200l == 0x0200l
    tableName = ("0Table", "1Table")[tableFlag]
    # Load piece table stream:
    try:
        f = cr.open(tableName)
        table = f.read()
        f.close()
    except: cr.close(); raise CompoundFileError, "The file is corrupt. '%s' piece table stream is missing." % tableName
    cr.close()
    # Find piece table inside a table stream:
    clx = table[fcClx:fcClx+lcbClx]
    pos = 0
    pieceTable = ""
    lcbPieceTable = 0
    while True:
        if clx[pos]=="\x02":
            # This is piece table, we store it:
            lcbPieceTable = unpack("l", clx[pos+1:pos+5])[0]
            pieceTable = clx[pos+5:pos+5+lcbPieceTable]
            break
        elif clx[pos]=="\x01":
            # This is beggining of some other substructure, we skip it:
            pos = pos+1+1+ord(clx[pos+1])
        else: break
    if not pieceTable: raise CompoundFileError, "The file is corrupt. Cannot locate a piece table."
    # Read info from pieceTable, about each piece and extract it from WordDocument stream:
    pieceCount = (lcbPieceTable-4)/12
    for x in xrange(pieceCount):
        cpStart = unpack("l", pieceTable[x*4:x*4+4])[0]
        cpEnd   = unpack("l", pieceTable[(x+1)*4:(x+1)*4+4])[0]
        ofsetDescriptor = ((pieceCount+1)*4)+(x*8)
        pieceDescriptor = pieceTable[ofsetDescriptor:ofsetDescriptor+8]
        fcValue = unpack("L", pieceDescriptor[2:6])[0]
        isANSII = (fcValue & 0x40000000) == 0x40000000
        fc      = fcValue & 0xbfffffff
        cb = cpEnd-cpStart
        enc = ("utf-16", "cp1252")[isANSII]
        cb = (cb*2, cb)[isANSII]
        text += doc[fc:fc+cb].decode(enc, "ignore")
    return "\n".join(text.splitlines())

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