import matplotlib.pyplot as plt
from matplotlib.patches import Polygon
from mpl_toolkits.basemap import Basemap

# Setup map projection.
ulat, llat, ulon, llon =  07., -35., -32., -77.

fig = plt.figure()
map = Basemap(projection='merc', llcrnrlat=llat,
                                 urcrnrlat=ulat,
                                 llcrnrlon=llon,
                                 urcrnrlon=ulon,
                                 resolution='i')

shp = map.readshapefile('/usr/share/basemap/brazil', 'states', drawbounds=True)
map.fillcontinents()

map.drawparallels([-34, 05], linewidth=0, labels=[1,0,0,1])
map.drawmeridians([llon, ulon], linewidth=0, labels=[1,0,0,1])

ax = plt.gca()
for nshape,seg in enumerate(map.states):
      poly = Polygon(seg,facecolor='.75',edgecolor='k')
      ax.add_patch(poly)

plt.show()