crude dotplot in matplotlib

gistfile1.py

# assumes pyplot and numpy are in namespace

import string
x = [1,4,5,9,9,11,13,14,18,20]
cats = [i for i in string.letters[:10]]
maxx = max(x)*1.10
ax = axes([0,0,1,1])
xlim(0,maxx)
ylim(0,11)
ticks = ax.yaxis.set_ticks(range(1,11))
text = ax.yaxis.set_ticklabels(cats)
for ct,item in enumerate(cats):
    hlines(ct+1, 0, maxx, linestyle='dashed',color='0.9')
plot(x, range(1,len(cats)+1), 'ko')