Hi All, I'm trying to implement a computer booking system for staff members here. At the moment I have a table with date, timeslot (eg 8:00 - 9:00), resource (eg. PC 1) and person. I want to draw a table showing the bookings for the day looking something like this: |Time| PC 1 | PC 2 | PC 3 | +----+------+------+------+ |8:00| AH | | | +----+------+------+------+ |9:00| | BC | MD | +----+------+------+------+ etc... I thought the best way to do it would be use the table to populate a dictionary of dictionaries like: booking['8:00']['PC 1'] = 'AH' Then when I'm rendering the table using ZPT I can use a nested loop to look through the timeslots and resources and fill table cells with the booking[slot][resource] value if it exists. After playing around for too long on it, I can't seem to get it to work. I even tried pre-filling the d-o-d with empty strings. I just don't understand what I am doing wrong. Thanks, Anton Code: ===== #parameters: booking_date # Import a standard function, and get the HTML request and response objects. from Products.PythonScripts.standard import html_quote request = container.REQUEST RESPONSE = request.RESPONSE bookings = {} # declare the bookings dictionary resource_hash = {} #declare the resource dictionary #populate bookings dictionary with timeslot keys for row in context.resources(): resource = row['name'] resource_hash[resource] = '' #populate bookings dictionary with timeslot keys for row in context.timeslots(): slot = row['slot_name'] bookings[slot] = resource_hash #fill the bookings dictionary of arrays with actual bookings for row in context.getBookings(on_date=booking_date): slot = row['timeslot'] resource = row['resource'] - 1 person = ['person'] bookings[slot][resource] = person return bookings Error: ====== Error Type: TypeError Error Value: unsupported operand type(s) for - Traceback (innermost last): File D:\ongaku\lib\python\ZPublisher\Publish.py, line 150, in publish_module File D:\ongaku\lib\python\ZPublisher\Publish.py, line 114, in publish File D:\ongaku\lib\python\Zope\__init__.py, line 159, in zpublisher_exception_hook (Object: bookings) File D:\ongaku\lib\python\ZPublisher\Publish.py, line 98, in publish File D:\ongaku\lib\python\ZPublisher\mapply.py, line 88, in mapply (Object: render_bookings) File D:\ongaku\lib\python\ZPublisher\Publish.py, line 39, in call_object (Object: render_bookings) File D:\ongaku\lib\python\Shared\DC\Scripts\Bindings.py, line 252, in __call__ (Object: render_bookings) File D:\ongaku\lib\python\Shared\DC\Scripts\Bindings.py, line 283, in _bindAndExec (Object: render_bookings) File D:\ongaku\lib\python\Products\PythonScripts\PythonScript.py, line 302, in _exec (Object: render_bookings) (Info: ({'script': <PythonScript instance at 01707050>, 'context': <PortalFolder instance at 01CFFEE0>, 'container': <PortalFolder instance at 01CFFEE0>, 'traverse_subpath': []}, ('9/9/02',), {}, None)) File Script (Python), line 23, in render_bookings TypeError: (see above) Anton Hughes Data Administrator Childhood Determinants of Adult Health Project Menzies Centre for Population Health Research GPO Box 252-23, Hobart Tasmania 7001 Email: anton.hughes@utas.edu.au Web: http://www.menzies.utas.edu.au/cohort/CDAH.htm Phone: +61 (0) 3 6226 7761 =+=+=+===+++=====+++++=========+++++++++ Sattinger's Law: It works better if you plug it in.