[matplotlib-devel] legend.py "ValueError: numpoints must be >= 0; it was 0"

[Steve Ward]

>
> import matplotlib.pyplot as plt
> fig = plt.figure()
> ax = plt.subplot(1,1,1)
> ax.plot(1.1, 2.2, label='foo')
> ax.legend(numpoints=0)
> # ValueError: numpoints must be >= 0; it was 0
>

In legend.__init__ the exception message doesn't match the condition that
raises it.  I think it should say "numpoints must be > 0".  I'm using
matplotlib version 0.99.3.


Steve
Index: legend.py
===
--- legend.py	(revision 8988)
+++ legend.py	(working copy)
@@ -282,7 +282,7 @@
 self._ncol = ncol
 
 if self.numpoints <= 0:
-raise ValueError("numpoints must be >= 0; it was %d"% numpoints)
+raise ValueError("numpoints must be > 0; it was %d"% numpoints)
 
 # introduce y-offset for handles of the scatter plot
 if scatteryoffsets is None:
--
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[matplotlib-devel] legend.py "ValueError: numpoints must be >= 0; it was 0"

[Steve Ward]

In legend.__init__ the exception message doesn't match the condition
that raises it.  I think it should say "numpoints must be > 0".  I'm
using matplotlib version 0.99.3.

Example:
#
import matplotlib.pyplot as plt
ax = plt.subplot(1,1,1)
ax.plot(1.1, 2.2, label='foo')
ax.legend(numpoints=0)
#
# ValueError: numpoints must be >= 0; it was 0


Steve

--
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next-generation tools to help Windows* and Linux* C/C++ and Fortran 
developers boost performance applications - including clusters. 
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