TypeError: '<' not supported between instances of 'Pmf' and 'Pmf'

[manujchandra]

When running redline.py's RunMixProcess() the following error is shown:

CI z (3.1, 12.483333333333333)
Writing redline0.pdf
Mean z 7.775313741407206
Mean zb 8.896772000693552
Mean y 4.448386000346783
Writing redline2.pdf
Writing redline3.pdf
20 0.8964230763420535 2
14 3.9218230371662175 7
20 2.918634295466948 9
25 1.0969132651473539 2
2 2.9606902100440924 5
25 11.794483884166665
Average arrival rate 2.119634928117617
Mean posterior lambda 0.03674032163607093
Writing redline1.pdf

---

TypeError Traceback (most recent call last)
in
----> 1 RunMixProcess(OBSERVED_GAP_TIMES)

in RunMixProcess(gap_times, lam, num_passengers, plot)
34
35 if plot:
---> 36 wme.MakePlot()
37
38 return wme

in MakePlot(self, root)
27
28 # plot the MetaPmf
---> 29 for pmf, prob in sorted(self.metapmf.Items()):
30 cdf = pmf.MakeCdf().Scale(1.0/60)
31 width = 2/math.log(-math.log(prob))

TypeError: '<' not supported between instances of 'Pmf' and 'Pmf'

Using Python version 3.7.3
Anaconda Version :

"fn": "anaconda-2019.03-py37_0.tar.bz2",
"installed_by": "Anaconda3-2019.03-Windows-x86_64.exe"

OS Windows 10

Thanks.

[manujchandra]

Hi, if it helps, I was able to make the error go away and get Fig 8.5 to render is by changing

for pmf, prob in sorted(self.metapmf.Items()):

to

for pmf, prob in self.metapmf.Items():

The figure seems to get rendered alright. But I am unsure if removing sorted() is impacting the result of the analysis.