TypeError

Python 3.8.10: /usr/bin/python3
Fri Jul 26 19:52:42 2024

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

/afs/csail.mit.edu/u/e/edemaine/public_html/confu/index.py in <module>

306

307 cgi.header (content_type = 'text/html; charset=utf-8')

308 cgi.write (page)

309

=> 310 if __name__ == '__main__': cgi_main ()

__name__ = '__main__', cgi_main = <function cgi_main>

/afs/csail.mit.edu/u/e/edemaine/public_html/confu/index.py in cgi_main(req=None)

276 elif mode == 'acronymbase':

277 head.append (formatter.highlight_javascript ())

=> 278 body.append (formatter.format_eventlist (events,

=> 279 base + " " +

=> 280 HTML.join (", ",

body = <pyweb.HTML.X object>, body.append = <bound method Element.append of <pyweb.HTML.X object>>, formatter = <HTMLFormatter.HTMLFormatter object>, formatter.format_eventlist = <bound method HTMLFormatter.format_eventlist of <HTMLFormatter.HTMLFormatter object>>, events = EventList ([Event ({'title': '53rd Annual IEEE S...e)], 'accept': <map object at 0x7f8912cc1040>})]), base = 'FOCS', global HTML = <module 'pyweb.HTML' from '/afs/csail.mit.edu/u/e/edemaine/big4/public_html/confu/pyweb/HTML.py'>, HTML.join = <function join>, HTML.A = <class 'pyweb.HTML.X'>, event undefined, href undefined, global HTMLFormatter = <module 'HTMLFormatter' from '/afs/csail.mit.edu...demaine/big4/public_html/confu/HTMLFormatter.py'>, HTMLFormatter.event_link_name = <function event_link_name>, onclick undefined, plots undefined

/afs/csail.mit.edu/u/e/edemaine/big4/public_html/confu/HTMLFormatter.py in format_eventlist(self=<HTMLFormatter.HTMLFormatter object>, eventlist=EventList ([Event ({'title': '53rd Annual IEEE S...e)], 'accept': <map object at 0x7f8912cc1040>})]), title=<pyweb.HTML.Concat object>, map='', plots=True)

291 #print 'Content-type: text/html\n' ## to show font warnings

292 Plots.init ()

=> 293 plots = Plots.plot_html (eventlist)

294 else:

295 plots = ''

plots = True, global Plots = <module 'Plots' from '/afs/csail.mit.edu/u/e/edemaine/big4/public_html/confu/Plots.py'>, Plots.plot_html = <function plot_html>, eventlist = EventList ([Event ({'title': '53rd Annual IEEE S...e)], 'accept': <map object at 0x7f8912cc1040>})])

/afs/csail.mit.edu/u/e/edemaine/big4/public_html/confu/Plots.py in plot_html(events=EventList ([Event ({'title': '53rd Annual IEEE S...e)], 'accept': <map object at 0x7f8912cc1040>})]))

120 def plot_html (events):

121 if not events: return ''

=> 122 plots = plot_event (events)

123 plotpairs = zip (plots[::2], plots[1::2])

124 return HTML.P (HTML.Table (

plots undefined, global plot_event = <function plot_event>, events = EventList ([Event ({'title': '53rd Annual IEEE S...e)], 'accept': <map object at 0x7f8912cc1040>})])

/afs/csail.mit.edu/u/e/edemaine/big4/public_html/confu/Plots.py in plot_event(events=[(1998, Event ({'title': '39th Annual Symposium on Found...one)], 'accept': <map object at 0x7f8912cc1040>})), (1999, Event ({'title': '40th Annual Symposium on Found...here': [('New York City, New York, USA', None)]})), (2000, Event ({'title': '41st Annual Symposium on Found...re': [('Redondo Beach, California, USA', None)]})), (2001, Event ({'title': '42nd Annual IEEE Symposium on ...one)], 'accept': <map object at 0x7f8912cc1eb0>})), (2002, Event ({'title': '43rd Annual IEEE Symposium on ...one)], 'accept': <map object at 0x7f8912cc4340>})), (2003, Event ({'title': '44th Annual IEEE Symposium on ...one)], 'accept': <map object at 0x7f8912cc4820>})), (2004, Event ({'title': '45th Annual IEEE Symposium on ...one)], 'accept': <map object at 0x7f8912cc4c40>})), (2005, Event ({'title': '46th Annual IEEE Symposium on ...nn Hotel, Pittsburgh, Pensylvania, USA', None)]})), (2006, Event ({'title': '47th Annual IEEE Symposium on ...etree Hotel, Berkeley, California, USA', None)]})), (2007, Event ({'title': '48th Annual IEEE Symposium on ...e Hotel, Providence, Rhode Island, USA', None)]})), (2008, Event ({'title': '49th Annual IEEE Symposium on ...one)], 'accept': <map object at 0x7f8912cc8e20>})), (2009, Event ({'title': '50th Annual IEEE Symposium on ...one)], 'accept': <map object at 0x7f8912cd02b0>})), (2010, Event ({'title': '51st Annual IEEE Symposium on ...one)], 'accept': <map object at 0x7f8912cd06a0>})), (2011, Event ({'title': '52nd Annual IEEE Symposium on ...one)], 'accept': <map object at 0x7f8912cd0a90>})), (2012, Event ({'title': '53rd Annual IEEE Symposium on ...one)], 'accept': <map object at 0x7f8912cd0e80>}))])

87 percentdict[paren][-1] = 100.0 * value / total[year]

88 valueslist = list(valuesdict.items())

=> 89 valueslist.sort ()

90 percentlist = list(percentdict.items())

91 percentlist.sort ()

valueslist = [(None, [None, 250, 270]), ('approximately', [220, None, None])], valueslist.sort = <built-in method sort of list object>

TypeError: '<' not supported between instances of 'str' and 'NoneType'
args = ("'<' not supported between instances of 'str' and 'NoneType'",)
with_traceback = <built-in method with_traceback of TypeError object>