Syntax to define a Layout of a Plot    
   Just for interest: 
I have 
reset()
import scipy.stats
n = 2000
p = 0.2
binom_dist = scipy.stats.binom(n,p)
bar_chart([binom_dist.pmf(x) for x in range(n)], frame=True, axes_labels=['$k$','$B(k,{},{})$'.format(n,float(p))])
How could outsource the part  like 
 Layout = frame=True, axes_labels=['$k$','$B(k,{},{})$'.format(n,float(p))]?
And then
bar_chart([binom_dist.pmf(x) for x in range(n)], Layout)
 
 