Thanks again, Eric.
I had been trying, and finally got a good result.
My answer is installing PyQt4 for newer Python (v2.7.2) from sources.
Here is the successful steps:
1. Install SIP from source (sip-4.13.2.tar.gz) at default directory
2. Install QtSDK from .run file (Qt_SDK_Lin64_online_v1_2_en.run)
at /usr/local/QtSDK
* To install Qt from source, we have to get additional libraries.
It was very bothersome, so I used official .run file.
3. Install PyQt4 from source (PyQt-x11-gpl-4.9.1.tar.gz)
When I did ./configure, I set these options:
python ./configure.py -g -q
/usr/local/QtSDK/Desktop/Qt/4.8.0/gcc/bin/qmake
If not setting -q option, pre-installed Qt may be selected,
and we may get DBusPendingCall errors.
After above, I set backend and plotted line as below:
> import matplotlib
> matplotlib.use("Qt4Agg")
> import matplotlib.pyplot as plt
> plt.plot([1,2,4,3])
> plt.show()
Then I got plot window from PyQt4! :)
Magician
On 2012/04/01, at 19:42, [email protected] wrote:
> Date: Sat, 31 Mar 2012 07:53:21 -1000
> From: Eric Firing <[email protected]>
> Subject: Re: [Matplotlib-users] Display problem on CentOS
> To: [email protected]
> Message-ID: <[email protected]>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> On 03/31/2012 04:02 AM, Magician wrote:
>> Alexis& Eric
>>
>>
>> Thanks for your advices.
>> I've been trying, but I still have some problems.
>>
>> I tried matplotlib.matplotlib_fname() and I found my silly mistake.
>> Python answered
>> '/usr/local/lib/python2.7/site-packages/matplotlib/mpl-data/matplotlibrc'
>> My RC file was named ".matplotlibrc".
>> When the prefixed dot removed, it works perfectly.
>>
>> And I found to change the backends by using matplotlib.use() command.
>> I tried all of them, but nothing worked (with errors).
>>
>> When using matplotlib.get_backend() on pre-installed python2.6,
>> it said 'GTKAgg' and matplotlib.pyplot.show() exactly worked.
>> So I tried to install PyGTK from source code, but it's fairly complicated.
>>
>> Is there an easy way to install backends for additionally installed Python?
>> My python is v2.7.2.
>
> Can you find CentOS packages for any of the gui toolkits for your python
> version? pygtk, pyqt4, tkinter, wxpython--any of them? If so, you
> should be just about set. Only pygtk and tkinter would even require
> rebuilding mpl; pyqt4 and wxpython don't require any mpl extension code.
>
> Eric
>
>>
>>
>> Magician
>>
>>
>> On 2012/03/27, at 23:04, Alexis Praga wrote:
>>
>>> You can check you are editing the correct configuration file with (in
>>> the Python shell) :
>>>>>> import matplotlib
>>>>>> matplotlib.matplotlib_fname()
>>>
>>> You can also try other backends. For a list, see :
>>> http://matplotlib.sourceforge.net/faq/usage_faq.html#what-is-a-backend
>>>
>>> On Tue, Mar 27, 2012 at 2:46 PM, Magician<[email protected]> wrote:
>>>> Thank you, Alexis.
>>>>
>>>> I try to install PyQt4 and set Qt4Agg just now, but nothing displayed.
>>>> Ummm...what's wrong...??
>>>>
>>>>
>>>> Magician
>>>>
>>>>
>>>> On 2012/03/27, at 17:05, Alexis Praga wrote:
>>>>
>>>>> I had the same problem on Debian.
>>>>> Editing the matplotlibrc (should be installed somewhere in your
>>>>> systeme) and changing the "backend" variable to Qt4Agg did the trick.
>>>>>
>>>>>
>>>>>
>>>>> On Tue, Mar 27, 2012 at 12:14 AM, Magician<[email protected]> wrote:
>>>>>> Hi.
>>>>>>
>>>>>> I want to install Matplotlib from source code on CentOS.
>>>>>> I've been using Matplotlib for a year.
>>>>>> But this is the first time for me to install CentOS by myself.
>>>>>>
>>>>>> I installed CentOS 6.2 in basic install option.
>>>>>> Next, I installed NumPy and Matplotlib.
>>>>>> .matplotlibrc isn't set.
>>>>>>
>>>>>> It looks successfully installed, but when I type show() command,
>>>>>> nothing appears.
>>>>>> I can export PNG image by using savefig() command, so maybe
>>>>>> I'm using invalid backend.
>>>>>>
>>>>>> How can I display plots with show() command?
>>>>>>
>>>>>>
>>>>>> Magician
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