CODEWITHSUNDEEP
pythonmatplotlib
user308827
user308827

Reputation: 21991

Matplotlib error with colormap in version 1.5.0

In a python script, I just upgraded my matplotlib to 1.5.0 and am now getting this error:

from matplotlib import pyplot as plt
import matplotlib.ticker as tkr
from matplotlib import rcParams
from mpl_toolkits.basemap import Basemap, maskoceans
    cs = m.contourf(x,y,mask_data,numpy.arange(min_range,max_range,step),cmap=PRGn_10.mpl_colormap)
NameError: global name 'PRGn_10' is not defined

How can I fix this?

Upvotes: 1

Views: 2197

Answers (1)

fjarri
fjarri

Reputation: 9726

It is not a matplotlib error. The error message says that the name PRGn_10 is not defined — because you never defined it. It is not present in any of your imports, and it is not a built-in, so Python cannot find it.

I am guessing you wanted to use the PRGn colormap. In order to do so, you need to import it, or the whole colormap module and reference it properly:

import matplotlib.cm as cm
cs = m.contourf(x,y,mask_data,numpy.arange(min_range,max_range,step),cmap=cm.PRGn)

or

from matplotlib.cm import PRGn
cs = m.contourf(x,y,mask_data,numpy.arange(min_range,max_range,step),cmap=PRGn)

Not sure what you meant by the .mpl_colormap bit, colormaps do not have such attribute.

Upvotes: 2

Related Questions