Generating word docs with Flask?

Question

I'm trying to spin up a single page flask application that allows users to download a word document. I've already figured out how to make/save the document using python-docx, but now I need to make the document available in the response. Any ideas?

Here's what I have so far:

from flask import Flask, render_template
from docx import Document
from cStringIO import StringIO

@app.route('/')
def index():
    document = Document()
    document.add_heading("Sample Press Release", 0)
    f = StringIO()
    document.save(f)
    length = f.tell()
    f.seek(0)
    return render_template('index.html')

Doobeh · Accepted Answer · 2014-11-21T04:10:10.747

5

instead of render_template('index.html') you can just:

from flask import Flask, render_template, send_file
from docx import Document
from cStringIO import StringIO

@app.route('/')
def index():
    document = Document()
    document.add_heading("Sample Press Release", 0)
    f = StringIO()
    document.save(f)
    length = f.tell()
    f.seek(0)
    return send_file(f, as_attachment=True, attachment_filename='report.doc')

edited Nov 21 '14 at 04:10

answered Nov 20 '14 at 01:07

Doobeh

9,280
39
32

This is the simplest way to do it so I marked this one as the answer. – BarFooBar Nov 20 '14 at 23:00
Thanks it helped me a lot! – Aitor Martin Aug 22 '16 at 14:45

score 2 · Answer 2 · edited Aug 24 '23 at 06:04

For those who pass after me...

referring to these two links:

python 3.x ImportError: No module named 'cStringIO' [StackOverFlow Question]
TypeError: string argument expected, got 'bytes' [GitHub issue]

io.StringIO now replaces cStringIO.StringIO

also it will raise an error as document.save(f) should receive a pass or binary file

code should be like this:

from flask import Flask, render_template, send_file
from docx import Document
from io import BytesIO

@app.route('/')
def index():
    document = Document()
    f = BytesIO()
    # do staff with document
    document.save(f)
    f.seek(0)

    return send_file(
        f,
        as_attachment=True,
        # Use attachment_name for Flask version < 2.2.0
        download_name='report.docx'
    )

score 1 · Answer 3 · edited May 23 '17 at 10:30

1

You could use the send_from_directory as in this answer.

If you are sending text, you could also use the make_response helper as in this answer.

edited May 23 '17 at 10:30

Community

1
1

answered Nov 20 '14 at 01:07

vikramls

1,802
1
11
15

score 0 · Answer 4 · answered Jul 03 '18 at 17:54

0

Use

return Response(generate(), mimetype='text/docx')

Generate() should be replaced with f in your case For more information look at streaming in flask http://flask.pocoo.org/docs/1.0/patterns/streaming/

answered Jul 03 '18 at 17:54

Patrick Mutuku

1,095
15
13

Generating word docs with Flask?

4 Answers4