Dear Eric and John, Thank both for your help.
John, I'll use your solution for now. Eric, when it comes through my repository, I'll try your solution. Again thanks. Best, Douglas 2009/4/13 Eric Firing <efir...@hawaii.edu>: > John Hunter wrote: >> >> On Thu, Apr 9, 2009 at 4:02 PM, mm2ps <d...@armadaletechnologies.co.uk> >> wrote: >>> >>> Hi, >>> >>> How would you check that there is something to show() before you show()? >> >> Although it is a bit inelegant, you could use the _pylab_helpers >> module to see how many figure managers are active > > In svn trunk this is exposed in pyplot.py: > > len(pyplot.get_fignums()) > > should do it. > > Eric > >> >> >> home:~> ipython -pylab >> Python 2.5 (r25:51918, Sep 19 2006, 08:49:13) >> Type "copyright", "credits" or "license" for more information. >> >> IPython 0.9.1 -- An enhanced Interactive Python. >> ? -> Introduction and overview of IPython's features. >> %quickref -> Quick reference. >> help -> Python's own help system. >> object? -> Details about 'object'. ?object also works, ?? prints more. >> >> Welcome to pylab, a matplotlib-based Python environment. >> For more information, type 'help(pylab)'. >> >> In [1]: plot([1,2,3]) >> Out[1]: [<matplotlib.lines.Line2D object at 0x46bfd70>] >> >> In [2]: import matplotlib._pylab_helpers as _pylab_helpers >> >> In [3]: print _pylab_helpers.Gcf.get_num_fig_managers() >> 1 >> >> JDH >> >> >> ------------------------------------------------------------------------------ >> This SF.net email is sponsored by: >> High Quality Requirements in a Collaborative Environment. >> Download a free trial of Rational Requirements Composer Now! >> http://p.sf.net/sfu/www-ibm-com >> _______________________________________________ >> Matplotlib-users mailing list >> Matplotlib-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/matplotlib-users > > ------------------------------------------------------------------------------ This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
