Ok, this appears to be a known limitation right now. https://github.com/stevengj/PyPlot.jl/issues/21
On Wed, Jul 22, 2015 at 1:28 PM, Emerson Vitor Castelani < [email protected]> wrote: > Code: > > using PyPlot > using PyCall > @pyimport matplotlib as plt > fig = plt.gcf() > function onclick(event) > println("down", event) > end > cid_up=fig[:canvas][:mpl_connect]("button_press_event",onclick) > plot.show() > > > Error: > > PyError (:PyObject_Call) <type 'exceptions.TypeError'> > TypeError("cannot create weak reference to 'PyCall.jl_Function' object",) > File "/usr/lib64/python2.7/site-packages/matplotlib/backend_bases.py", line > 2316, in mpl_connect > return self.callbacks.connect(s, func) > File "/usr/lib64/python2.7/site-packages/matplotlib/cbook.py", line 506, in > connect > self._func_cid_map[s][func] = cid > File "/usr/lib64/python2.7/weakref.py", line 321, in __setitem__ > self.data[ref(key, self._remove)] = value > > while loading In[5], in expression starting on line 1 > > in pyerr_check at /home/emerson/.julia/v0.3/PyCall/src/exception.jl:60 > in pycall at /home/emerson/.julia/v0.3/PyCall/src/PyCall.jl:92 > in fn at /home/emerson/.julia/v0.3/PyCall/src/conversions.jl:188 > > > > Thanks > > Em terça-feira, 21 de julho de 2015 16:23:30 UTC-3, Isaiah escreveu: >> >> Please describe what you tried and what was the error. You may need to >> either 1) yield the event loop 2) make sure the program stays open long >> enough to actually display your plot (ref: >> https://github.com/stevengj/PyPlot.jl/issues/41) >> >> On Tue, Jul 21, 2015 at 2:53 PM, Emerson Vitor Castelani < >> [email protected]> wrote: >> >>> I had a similar problem...I don't know why... >>> >>> >>> Em terça-feira, 21 de julho de 2015 14:46:41 UTC-3, El suisse escreveu: >>>> >>>> Hi >>>> I got the following example related with this thread >>>> >>>> https://gist.github.com/elsuizo/5338605a6a5c7ab54730 >>>> >>>> but fail in >>>> >>>> >>>> https://gist.github.com/elsuizo/5338605a6a5c7ab54730#file-phase_portrait_mouse_event-jl-L114 >>>> >>>> and I do not know why >>>> >>>> This is the python code which comes: >>>> >>>> https://gist.github.com/elsuizo/6957889d8e63e9029377 >>>> >>> >>
