Hi Massimo, Probably (and probably not) because I manually delete applications/ myapp/uploads/*.jpg, somehow I encounter an exception when gonna display a crud.update(...) form.
The error traceback: ...... File "C:\DOWNLOAD\google_appengine\web2py\gluon\html.py", line 452, in _traverse newstatus = c._traverse(status) and newstatus File "C:\DOWNLOAD\google_appengine\web2py\gluon\html.py", line 452, in _traverse newstatus = c._traverse(status) and newstatus File "C:\DOWNLOAD\google_appengine\web2py\gluon\html.py", line 452, in _traverse newstatus = c._traverse(status) and newstatus TypeError: 'NoneType' object is not callable Then I add some logging before gluon.py/html.py line 452, and see: WARNING:root:c=<tr id="crude_products_sold_crude_oid__row"><td><label for="crude_products_sold_crude_oid" id="crude_products_sold_crude_oid__label">Crude Oid: </label></ td><td>3</td><td></td></tr>, c._traverse=<bound method TR._traverse of<gluon.html.TR object at 0x0219D530>> WARNING:root:c=<td><label for="crude_products_sold_crude_oid" id="crude_products_sold_crude_oid__label">Crude Oid: </label></td>, c._traverse=<bound method TD._traverse of <gluon.html.TD object at 0x0219D510>> WARNING:root:c=<label for="crude_products_sold_crude_oid" id="crude_products_sold_crude_oid__label">Crude Oid: </label>, c._traverse=<bound method LABEL._traverse of <gluon.html.LABEL object at 0x0219D4F0>> WARNING:root:c=<td>3</td>, c._traverse=<bound method TD._traverse of <gluon.html.TD object at 0x0219D8F0>> WARNING:root:c=3, c._traverse=None Therefore I suggest changing line 445 of gluon/html.py from: if hasattr(c, '_traverse'): to: if hasattr(c, '_traverse') and c._traverse is not None: At least it won't break anything else. Regards, Iceberg -- You received this message because you are subscribed to the Google Groups "web2py-users" group. To post to this group, send email to web...@googlegroups.com. To unsubscribe from this group, send email to web2py+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/web2py?hl=en.