I have this problem as well. I'm on Windows XP (32-bit x86 processor) using Python 2.6.4 and matplotlib 0.99.1 (installed with matplotlib-0.99.1.win32-py2.6.exe). The IDLE version is 2.6.4. The difficulty occurs for me during the first example of the (official?) Pyplot tutorial at <http://matplotlib.sourceforge.net/users/ pyplot_tutorial.html>, so it is possible that many new users of pyplot experience this same difficulty:
import matplotlib.pyplot as plt plt.plot([1,2,3]) plt.ylabel('some numbers') plt.show() I see the plot, and I can close the plot window by clicking on the X at the upper-right corner of the plot window. However, as Forrest mentioned, IDLE does not then spit out the next command prompt, nor does IDLE respond to a Ctrl-C. I have found that by turning on pyplot's 'interactive mode', the above problem does not occur: import matplotlib.pyplot as plt plt.ion() plt.plot([1,2,3]) # plot opens after this command is issued, and new command prompt appears plt.ylabel('some numbers') # if plot is not closed before issuing this command, then the open plot window is updated plt.close() # same effect as manually click-closing the plot window On Oct 24, 5:03 pm, Forrest Sheng Bao <forrest....@gmail.com> wrote: > I am having a weird problem on IDLE. After I plot something using show > () of matplotlib, the python shell prompt in IDLE just freezes that I > cannot enter anything and there is no new ">>>" prompt show up. I > tried ctrl - C and it didn't work. I have to restart IDLE to use it > again. > > My system is Ubuntu Linux 9.04. I used apt-get to install IDLE. -- http://mail.python.org/mailman/listinfo/python-list