[Matplotlib-users] cannot understand http://matplotlib.org/api/pyplot_api.html#matplotlib.pyplot.show

[<kei...@bt...>]

The last line of text below seems to say that setting block to either True or False causes an override of the blocking behavior.  I don't think this is as intended.   Which way round is it (in fact I find it has no effect)?

The problem I have is that using pyplot.show at the top level of a python script works correctly, but as soon as I out the same code inside a function, I see no plot.

How do I fix this?

Keith

http://matplotlib.org/api/pyplot_api.html#matplotlib.pyplot.show

matplotlib.pyplot.show(*args, **kw)

In non-interactive mode, display all figures and block until the figures have been closed; in interactive mode it has no effect unless figures were created prior to a change from non-interactive to interactive mode (not recommended). In that case it displays the figures but does not block.

A single experimental keyword argument, block, may be set to True or False to override the blocking behavior described above.