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POPython - multipart form post data
 

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    <p>This is my first question in this forum. I want to POST(using PUT Method) the data using multipart form data. I found the code for Multipart Post Form Data code in doughellmann.com.It works fine for post data. I ant to add my parameters in PUT Method and i tried it. it does not return back .... Could you please help on this guys....</p> <p>Code</p> <pre><code># This Script is used for upload API Calls # This script would be inherited under Device API # import itertools import mimetools import mimetypes from cStringIO import StringIO import urllib import urllib2 class MultiPartForm(object): """Accumulate the data to be used when posting a form.""" def __init__(self): self.form_fields = [] self.files = [] self.boundary = mimetools.choose_boundary() return def get_content_type(self): return 'multipart/form-data; boundary=%s' % self.boundary def add_field(self, name, value): """Add a simple field to the form data.""" self.form_fields.append((name, value)) return def add_file(self, fieldname, filename, fileHandle, mimetype=None): """Add a file to be uploaded.""" body = fileHandle.read() if mimetype is None: mimetype = mimetypes.guess_type(filename)[0] or 'application/octet-stream' self.files.append((fieldname, filename, mimetype, body)) return def __str__(self): """Return a string representing the form data, including attached files.""" # Build a list of lists, each containing "lines" of the # request. Each part is separated by a boundary string. # Once the list is built, return a string where each # line is separated by '\r\n'. parts = [] part_boundary = '--' + self.boundary # Add the form fields parts.extend( [ part_boundary, 'Content-Disposition: form-data; name="%s"' % name, '', value, ] for name, value in self.form_fields ) # Add the files to upload parts.extend( [ part_boundary, 'Content-Disposition: file; name="%s"; filename="%s"' % \ (field_name, filename), 'Content-Type: %s' % content_type, '', body, ] for field_name, filename, content_type, body in self.files ) # Flatten the list and add closing boundary marker, # then return CR+LF separated data flattened = list(itertools.chain(*parts)) flattened.append('--' + self.boundary + '--') flattened.append('') return '\r\n'.join(flattened) if __name__ == '__main__': # Create the form with simple fields form = MultiPartForm() form.add_field('firstname', 'Doug') form.add_field('lastname', 'Hellmann') # Add a fake file form.add_file('biography', 'bio.txt', fileHandle=StringIO('Python developer and blogger.')) # Build the request request = urllib2.Request('http://192.1681.2/1.0/api/filecontents') request.add_header('User-agent', 'PyMOTW (http://www.doughellmann.com/PyMOTW/)') body = str(form) request.add_header('Content-type', form.get_content_type()) request.add_header('Content-length', len(body)) request.add_data(body) regparams={'restMethod' : 'PUT' ,'HTTP_RANGE' :'10-20' } print print 'OUTGOING DATA:' print request.get_data() params = urllib.urlencode(regparams) print print 'SERVER RESPONSE:' print urllib2.urlopen(request,params).read() </code></pre>
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    1. COIf you're using `PUT`, then you aren't really "POSTing" the data.
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      1. USHank Gay
    2. COwhois 192.1681.2 ?
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    3. COHi, I am using to post the data to device(upload the image from PC to mobiledevie). The POST is working fine. I dont know how to use PUT method. Could you please help on this.
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