upload file with Python Mechanize

Question

When I run the following script:

from mechanize import Browser
br = Browser()
br.open(url)
br.select_form(name="edit_form")
br['file'] = 'file.txt'
br.submit()

I get: ValueError: value attribute is readonly

And I still get the same error when I add:

br.form.set_all_readonly(False)

So, how can I use Python Mechanize to interact with a HTML form to upload a file?

Richard

this may be stupid, but does the file.txt exist in your script's working directory? — Geo
– Geo, Commented Aug 19, 2009 at 18:18

hoju · Accepted Answer · 2009-08-20 12:30:32Z

18

This is how to do it properly with Mechanize:

br.form.add_file(open(filename), 'text/plain', filename)

answered Aug 20, 2009 at 12:30

hoju

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Community · Accepted Answer · 2017-05-23 10:32:53Z

2

twill is built on mechanize and makes scripting web forms a breeze. See python-www-macro.

>>> from twill import commands
>>> print commands.formfile.__doc__

>> formfile <form> <field> <filename> [ <content_type> ]

Upload a file via an "upload file" form field.

>>>

edited May 23, 2017 at 10:32

CommunityBot

11 silver badge

answered Aug 19, 2009 at 13:24

gimel

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