python socket error

[Thomas Thomas]

Is there any getaround for the following error ..
This happens when uploading large files say>50MB..

Python version 
Python 2.3.5 (#62, Feb  8 2005, 16:23:02) [MSC v.1200 32 bit (Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.

Traceback (most recent call last):
  File "<stdin>", line 1, in ?
  File "c:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/python-116V_Z.py", line 87, in ?
    httpResult=httpUploadAsset('XXXXXX',filename,fileData)
  File "c:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/python-116V_Z.py", line 12, in httpUploadAsset
    results=post_multipart(theURL,"/UploaderHttp/",fields,files);
  File "c:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/python-116V_Z.py", line 30, in post_multipart
    h.send(body)
  File "C:\Python23\lib\httplib.py", line 579, in send
    self.sock.sendall(str)
  File "<string>", line 1, in sendall
socket.error: (10055, 'No buffer space available')

Any help
Thomas


----------below the code sample that i am using
import os
import httplib, mimetypes
import os;
def httpUploadAsset(serial,filename,data):
    _sessionID='xxxxxxx';
    _baseURL='http://xxxxxx.com'
    fields = [('serial',serial),('sessionID',_sessionID)]
    file = ('file', filename, data)
    files = [file]
    protocol,theURL=_baseURL.split('http://');
    results=post_multipart(theURL,"/UploaderHttp/",fields,files);
    print results;
    return results;

def post_multipart(host, selector, fields, files):
    """
    Post fields and files to an http host as multipart/form-data.
    fields is a sequence of (name, value) elements for regular form fields.
    files is a sequence of (name, filename, value) elements for data to be uploaded as files
    Return the server's response page.
    """
    content_type, body = encode_multipart_formdata(fields, files)
    h = httplib.HTTP(host)
    h.set_debuglevel(0)
    h.putrequest('POST', selector)
    h.putheader('content-type', content_type)
    h.putheader('content-length', str(len(body)))
    h.endheaders()
    h.send(body)
    errcode, errmsg, headers = h.getreply()
    return h.file.read()

def encode_multipart_formdata(fields, files):
    """
    fields is a sequence of (name, value) elements for regular form fields.
    files is a sequence of (name, filename, value) elements for data to be uploaded as files
    Return (content_type, body) ready for httplib.HTTP instance
    """ 
    BOUNDARY = '----------ThIs_Is_tHe_bouNdaRY_$'
    CRLF = '\r\n'
    L = []
    for (key, value) in fields:
        L.append('--' + BOUNDARY)
        L.append('Content-Disposition: form-data; name="%s"' % key)
        L.append('')
        L.append(value)
    for (key, filename, value) in files:
        L.append('--' + BOUNDARY)
        L.append('Content-Disposition: form-data; name="%s"; filename="%s"' % (key, filename))
        L.append('Content-Type: %s' % get_content_type(filename))
        L.append('')
        L.append(value)
    L.append('--' + BOUNDARY + '--')
    L.append('')
    body = CRLF.join(L)

    content_type = 'multipart/form-data; boundary=%s' % BOUNDARY
    return content_type, body
 
 
def get_content_type(filename):
    return mimetypes.guess_type(filename)[0] or 'application/octet-stream'


def getFileData(filename):
    try:
        f = file(filename, "rb")
        data = f.read()
        f.close()
    except IOError:
        return['ERR']

    return ['OK',data]


filepath="c:/Documents and Settings/Administrator/Desktop/tmp/TM_A5_Bulk.pdf"  #file with size >50MB
fileResult=getFileData(filepath)
filename='TM_A5_Bulk.pdf'
fileData=None
if (fileResult[0]=='OK'):
     fileData=fileResult[1];
httpResult=httpUploadAsset('XXXXXX',filename,fileData)
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