It might be interesting to run w/ -X:ExceptionDetail to see where the OOM is actually coming from. It could be that there's one giant allocation which is failing or it could be that something's broken and causing a big loop which allocates forever. -X:ExceptionDetail might given an indication of which one it is.
From: users-boun...@lists.ironpython.com [mailto:users-boun...@lists.ironpython.com] On Behalf Of matan keret Sent: Sunday, November 15, 2009 8:34 AM To: Discussion of IronPython Subject: [IronPython] poplib.POP3_SSL OutOfMemory Issue Hi everyone! i wrote the next code which suppose to go to my hotmail account, fetch the last email's image attachment and save it to a file: import email, poplib, os, string def get_messages_id(message_list): items = [] for message in message_list[1]: message_parts = string.split(message,' ') message_id = message_parts[0] items.append(message_id) # print 'message id is: %s\n' % message_id # print 'done getting ids' return items host = "pop3.live.com<http://pop3.live.com>" detach_dir = 'D:\\test-attachments\\' # directory where to save attachments (default: current) user = "matan...@hotmail.com<mailto:matan...@hotmail.com>" pwd = "0okmnji9" server = poplib.POP3_SSL(host) server.user(user) server.pass_(pwd) numMessages = len(server.list()[1]) #print numMessages # server.list() returns messages info from server in # form of response, message_list, size where message_list # is. a list of messages in form of 'message_id size' message_list = server.list() # get the list of items id items = get_messages_id(message_list) items.reverse() # puts the last received mail's id in the first place in list is_image = False # find the first mail in items that has an attachment and get the attachment for emailid in items: # if we found an email with an image we break if is_image: break total_email_message = server.retr(emailid)[1] messageText = string.join(total_email_message, "\n") mail = email.message_from_string(messageText) # parsing the mail content to get a mail object # Check if there are any attachments at all if mail.get_content_maintype() != 'multipart': continue # we use walk to create a generator so we can iterate on the parts for part in mail.walk(): # skip any attachment which is not an image if part.get_content_maintype() != 'image': continue # is this part an attachment ? if part.get('Content-Disposition') is None: continue filename = part.get_filename() is_image = True # if there is no filename, we create one with a counter to avoid duplicates if not filename: filename = 'part-%03d%s' % (1, 'bin') att_path = os.path.join(detach_dir, filename) # Check if its not already there and finally write the file if not os.path.isfile(att_path) : fp = open(att_path, 'wb') fp.write(part.get_payload(decode=True)) fp.close() # if we found an email with an image we break after first image downloaded if is_image: break server.quit() print 'Finished fetching the image' # THE END also available at: http://pastebin.org/53873 This works fine on Cpython but on IronPython 2.0.3 I get: Traceback (most recent call last): File "get_first_attachment.py", line 21, in get_first_attachment.py File "D:\IronPython 2.0.3\Lib\poplib.py", line 361, in __init__ File "D:\IronPython 2.0.3\Lib\poplib.py", line 137, in _getresp File "D:\IronPython 2.0.3\Lib\poplib.py", line 374, in _getline File "D:\IronPython 2.0.3\Lib\poplib.py", line 364, in _fillBuffer MemoryError: Exception of type 'System.OutOfMemoryException' was thrown. this comes out from line 21: server = poplib.POP3_SSL(host) Any ideas why is that? How to fix it? Is it a known issue (tried to look but couldn't find)? Thanks, Matan
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