id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
2613	[patch] memory error in upload big sized file resolved.	Jeong-Min Lee	Adrian Holovaty	"While running in stand alone mode, when big sized file uploaded, this error occured only in the stand alone mode so when coupled with web server this is not triggered.. 
Trace back like this

{{{

Original Traceback (most recent call last):
  File ""C:\Python24\lib\site-packages\django\template\__init__.py"", line 706, in render_node
    result = node.render(context)
  File ""C:\Python24\lib\site-packages\django\template\__init__.py"", line 752, in render
    output = self.filter_expression.resolve(context)
  File ""C:\Python24\lib\site-packages\django\template\__init__.py"", line 548, in resolve
    obj = resolve_variable(self.var, context)
  File ""C:\Python24\lib\site-packages\django\template\__init__.py"", line 634, in resolve_variable
    current = current[bits[0]]
  File ""C:\Python24\lib\site-packages\django\http\__init__.py"", line 31, in __getitem__
    for d in (self.POST, self.GET):
  File ""C:\Python24\lib\site-packages\django\core\handlers\wsgi.py"", line 99, in _get_post
    self._load_post_and_files()
  File ""C:\Python24\lib\site-packages\django\core\handlers\wsgi.py"", line 77, in _load_post_and_files
    self._post, self._files = http.parse_file_upload(header_dict, self.raw_post_data)
  File ""C:\Python24\lib\site-packages\django\core\handlers\wsgi.py"", line 122, in _get_raw_post_data
    self._raw_post_data = self.environ['wsgi.input'].read(int(self.environ[""CONTENT_LENGTH""]))
  File ""C:\Python24\lib\socket.py"", line 303, in read
    data = self._sock.recv(recv_size)
MemoryError

}}}

So the diff of the django/core/handlers/wsgi.py is.. 
{{{
--- wsgi.py     (revision 3668)
+++ wsgi.py     (working copy)
@@ -50,6 +50,10 @@
     505: 'HTTP VERSION NOT SUPPORTED',
 }
 
+try:
+    from cStringIO import StringIO
+except ImportError:
+    from StringIO import StringIO
 class WSGIRequest(http.HttpRequest):
     def __init__(self, environ):
         self.environ = environ
@@ -119,7 +123,18 @@
         try:
             return self._raw_post_data
         except AttributeError:
-            self._raw_post_data = self.environ['wsgi.input'].read(int(self.environ[""CONTENT_LENGTH""]))
+            mem = StringIO()
+            input = self.environ['wsgi.input']
+            content_length = int(self.environ[""CONTENT_LENGTH""])
+            chunksize = 65536 # 64KB
+            while 1:
+                remain = content_length - mem.tell()
+                if remain <= 0: break
+                chunk = input.read(min(chunksize, remain))
+                if not chunk: break
+                mem.write(chunk)
+            self._raw_post_data = mem.getvalue()
+            mem.close()
             return self._raw_post_data
 
     GET = property(_get_get, _set_get)
}}}

"	defect	closed	Core (Other)	dev	major	fixed			Unreviewed	1	0	0	0	0	0