将数据发布到Web进行处理

Question

I am a newbie to web development, so please be mercy if the following question sounds a bit naive. How can I post to a web form using python? I know the web form is something like this, and I want to upload a local file for it to be processed online and get the returned data

<form action="process.php" method="post" enctype="multipart/form-data">
    <input type="file" name="file" id="file" id="chooser" /><br />
    <input type="submit" value="Upload" name="submit"  />
</form>

Here's what I have for my python program so far.

upfile = urllib.urlencode( {'file':path/to/my/local/file})
filehandle = urllib.urlopen('http://www.comdroid.org/', upfile)
soup = BeautifulSoup(filehandle)
print soup

I want to see the returned results, but the current code snippet only gives me the result without processing my uploaded file. Is there anything I am missing

------------UPDATE---------------- Here is how I do it now

import urllib2
import urllib 
import requests
import os
files1 ={'file':open('/opt/apps/au.com.psyborg.sbc-5.apk','rb')‌​}
#response= os.system("curl --form   file=@/opt/apps/au.com.psyborg.sbc-5.apk --form submit=Upload www.comdroid.org/process.php")
req = requests.post('comdroid.org/process.php', files = files1) 
print req.text

---

The weird thing is I cannot do it with request, the server complains my file is not .apk file, which it actually is. But if I switch to curl using os.system as commented out, it works! So I doubt I am missing something here in request. Any suggestion?

Answer 1

If you look at the form's action property, it's going to process.php - so you'll need to send your file upload to http://www.comdroid.org/process.php .

Doing file uploads with the standard library is a bit of a pain - if you're allowed to, I would recommend using requests for this - they even have an example of what you're asking for in their documentation :

url = 'http://httpbin.org/post'
files = {'file': open('report.xls', 'rb')}
r = requests.post(url, files=files)

I also found this SO answer on how to do it with the mechanize library , and a code sample that might help if you want to do it with the standard library .