HeadersAlreadySentException

Traceback

A problem occurred in a Python script. Here is the sequence of function calls leading up to the error, in the order they occurred.

1. /home/user/workspace/moin-1.7/MoinMoin/request/__init__.py in run (self=<MoinMoin.request.request_standalone.Request object>)

   1. 1266 self.page.send_page(msg=msg)
   2. 1267 else:
   3. 1268 handler(self.page.page_name, self)
   4. 1269
   5. 1270 # every action that didn't use to raise MoinMoinFinish must call this now:
   • handler = <function execute>
   • self = <MoinMoin.request.request_standalone.Request object>
   • self.page = <MoinMoin.Page.Page object>
   • self.page.page_name = u'Example1'

2. /home/user/workspace/moin-1.7/MoinMoin/action/edit.py in execute (pagename=u'Example1', request=<MoinMoin.request.request_standalone.Request object>)

   1. 73 # is invoked without savetext start editing
   2. 74 if savetext is None or 'button_load_draft' in request.form:
   3. 75 pg.sendEditor()
   4. 76 return
   5. 77
   • pg = <MoinMoin.PageEditor.PageEditor object>
   • pg.sendEditor = <bound method PageEditor.sendEditor of <MoinMoin.PageEditor.PageEditor object>>

3. /home/user/workspace/moin-1.7/MoinMoin/PageEditor.py in sendEditor (self=<MoinMoin.PageEditor.PageEditor object>, **kw={})

   1. 198 # Did one of the prechecks fail?
   2. 199 if msg:
   3. 200 self.send_page(msg=msg)
   4. 201 return
   5. 202
   • self = <MoinMoin.PageEditor.PageEditor object>
   • self.send_page = <bound method PageEditor.send_page of <MoinMoin.PageEditor.PageEditor object>>
   • msg = u'This page is currently <em>locked</em> for editi... until 2007-07-23 14:17:38, i.e. for 1 minute(s).'

4. /home/user/workspace/moin-1.7/MoinMoin/Page.py in send_page (self=<MoinMoin.PageEditor.PageEditor object>, msg=u'This page is currently <em>locked</em> for editi... until 2007-07-23 14:17:38, i.e. for 1 minute(s).', **keywords={})

   1. 1094 else:
   2. 1095 request.setHttpHeader('Status: 404 NOTFOUND')
   3. 1096 request.emit_http_headers()
   4. 1097
   5. 1098 request.write(self.formatter.startDocument(self.page_name))
   • request = <MoinMoin.request.request_standalone.Request object>
   • request.emit_http_headers = <bound method Request.emit_http_headers of <MoinMoin.request.request_standalone.Request object>>

5. /home/user/workspace/moin-1.7/MoinMoin/request/__init__.py in emit_http_headers (self=<MoinMoin.request.request_standalone.Request object>, more_headers=[])

   1. 1312 self.sent_headers = sent_headers
   2. 1313 if sent_headers > 1:
   3. 1314 raise HeadersAlreadySentException("emit_http_headers called multiple (%d) times! Headers: %r" % (sent_headers, all_headers))
   4. 1315 #else:
   5. 1316 # self.log("Notice: emit_http_headers called first time. Headers: %r" % all_headers)
   • global HeadersAlreadySentException = <class MoinMoin.request.HeadersAlreadySentException>
   • sent_headers = 2
   • all_headers = ['Content-Type: text/html; charset=utf-8', 'Status: 200 OK']