only length-1 arrays can be converted to Python scalars

[zawmoetun]

Dear Sir,
Very appreciate your efforts.
When I am running "2017-06-04-predicting-football-results-with-statistical-modelling", I get below errors. I used Anaconda framework. Even I run at command prompt, I still get this error. Python version 3.6.4 64 bit and it is running on Mac. Can you pls. help to me. I an very new to Python.
Best Regards,
Zaw

---

TypeError Traceback (most recent call last)
in ()
12 sun_away_pois = [poisson.pmf(i,np.sum(np.multiply(sun_home.values.T,sun_home.index.T),axis=1)[0]) for i in range(8)]
13
---> 14 ax1.bar(chel_home.index-0.4,chel_home.values,width=0.4,color="#034694",label="Chelsea")
15 ax1.bar(sun_home.index,sun_home.values,width=0.4,color="#EB172B",label="Sunderland")
16 pois1, = ax1.plot([i for i in range(8)], chel_home_pois,

~/anaconda3/lib/python3.6/site-packages/matplotlib/init.py in inner(ax, *args, **kwargs)
1708 warnings.warn(msg % (label_namer, func.name),
1709 RuntimeWarning, stacklevel=2)
-> 1710 return func(ax, *args, **kwargs)
1711 pre_doc = inner.doc
1712 if pre_doc is None:

~/anaconda3/lib/python3.6/site-packages/matplotlib/axes/_axes.py in bar(self, *args, **kwargs)
2146 edgecolor=e,
2147 linewidth=lw,
-> 2148 label='nolegend',
2149 )
2150 r.update(kwargs)

~/anaconda3/lib/python3.6/site-packages/matplotlib/patches.py in init(self, xy, width, height, angle, **kwargs)
687 """
688
--> 689 Patch.init(self, **kwargs)
690
691 self._x = xy[0]

~/anaconda3/lib/python3.6/site-packages/matplotlib/patches.py in init(self, edgecolor, facecolor, color, linewidth, linestyle, antialiased, hatch, fill, capstyle, joinstyle, **kwargs)
131 self.set_fill(fill)
132 self.set_linestyle(linestyle)
--> 133 self.set_linewidth(linewidth)
134 self.set_antialiased(antialiased)
135 self.set_hatch(hatch)

~/anaconda3/lib/python3.6/site-packages/matplotlib/patches.py in set_linewidth(self, w)
379 w = mpl.rcParams['axes.linewidth']
380
--> 381 self._linewidth = float(w)
382 # scale the dash pattern by the linewidth
383 offset, ls = self._us_dashes

TypeError: only length-1 arrays can be converted to Python scalars