Farma French example missing varnames?

[dartdog]

Thanks for all the recent fixes..
Running the Farma French benchmark example notebook I get (in cell 7) (sems like it may be a pymc3 issue?

pm.traceplot(ok);
----> 2 pm.traceplot(ok);
AttributeError                            Traceback (most recent call last)
<ipython-input-7-1103a9268556> in <module>()
      1 import pymc3 as pm
----> 2 pm.traceplot(ok);
~/anaconda3/envs/pyfolioenv/lib/python3.6/site-packages/pymc3/plots/traceplot.py in traceplot(trace, varnames, transform, figsize, lines, combined, plot_transformed, grid, alpha, priors, prior_alpha, prior_style, ax, live_plot, skip_first, refresh_every, roll_over)
     72 
     73     if varnames is None:
---> 74         varnames = get_default_varnames(trace.varnames, plot_transformed)
     75 
     76     if figsize is None:

AttributeError: 'tuple' object has no attribute 'varnames' 

[twiecki]

Which pymc3 version are you on? You should be on 3.1.

[dartdog]

That is what I'm on installed via conda

[dartdog]

FWIW I just installed zipline, and it clobbered a bunch of pyfolio depends eg it downgraded pandas to 18.. from 20.2 and took a bunch of other packages down,,, (thank goodness for conda, won't be too hard to get back..) I have pyfolio and my attempt at zipline in it's own (new) env.. (opened a ticket on that, and that was all after the error reported above..)