show_colormaps.py

from __future__ import (absolute_import, division, print_function)

importnumpyasnp
importmatplotlib.pyplotasplt
frommpl_toolkits.basemapimportcm
a=np.outer(np.arange(0,1,0.01),np.ones(10))
plt.figure(figsize=(10,7))
plt.subplots_adjust(top=0.8,bottom=0.05,left=0.01,right=0.99)
maps=[mformincm.datad.keys() ifnotm.endswith("_r")]
maps.sort()
l=len(maps)+1
i=1
forminmaps:
plt.subplot(1,l,i)
plt.axis("off")
plt.imshow(a,aspect='auto',cmap=cm.__dict__[m],origin="lower")
plt.title(m,rotation=90,fontsize=10)
i=i+1
plt.show()