Matplotlib窗口出现在后面？

Question

Whenever I call show() in matplotlib the plot window appears behind all other windows and I have to minimize everything to see it. Is there any way I can prevent this or programmatically bring it to the front. On OSX Lion. Python 2.7

Answer 1

Not exactly an answer to your question, but I'm using ipython instead of the default python console. When launched it with ipython --pylab I can plot eg by typing

>> plot([1,3,2])

and have the plot pop up in front. It also has some other very nice features ;)

Answer 2

Matplotlib developer's seem to be aware of this issue. But looking into https://github.com/matplotlib/matplotlib/issues/596 it looks like it's going to be a while until getting a solution, apparently because some people find it annoying that figure.show() "steals" screen space.

Answer 3

Well. This answer is presented in the comments to the accepted answer but I think it deserves to have a place as a separate one as it solves the issue nicely. Besides the author's problem I additionally had the problem that matplotlib window wasn't in the tray of active windows so I couldn't switch to it by <Alt>+<Tab> .

Changing of the matplotlib's default backend macosx solved everything. You can try immediately in your code like this:

import matplotlib
matplotlib.use("Qt5agg")

Qt5agg might not be presented in your system then please pick the one that is. You can find them:

import matplotlib.rcsetup as rcsetup
print(rcsetup.all_backends)

If it helped then you might want to change your backend in the configuration. For that locate it first:

import matplotlib
matplotlib.matplotlib_fname()

Then change backend: value:

backend      : macosx

to your backend. I used in the end:

backend      : TkAgg

Answer 4

It may be OS-specific, but using interactive plotting (which plots as soon as you instruct) causes figures to come up in the foreground as soon as they're made on Ubuntu:

import pylab as P
P.ion()
P.figure(1)
P.plot([1,2,3],[1,4,9])

Answer 5

I have the same set-up as nickponline. What works for me is:

from pylab import get_current_fig_manager()
get_current_fig_manager().window.raise_()

If you have multiple figures, this only raises the currently active one. For that case, I found that the following works:

fig1=figure(1)
cfm1=get_current_fig_manager().window

fig2=figure(2)
cfm2=get_current_fig_manager().window
...
cfm1.activateWindow()
cfm1._raise()
pause(.1)  # or something else that uses up some time
cfm2.activateWindow()
cfm2.raise_()