PyQt4
Muhammad Ali
muhammadaliaskari at gmail.com
Sun Apr 3 15:36:25 EDT 2016
On Sunday, April 3, 2016 at 12:15:06 PM UTC-7, Michael Torrie wrote:
> On 04/03/2016 12:57 PM, Muhammad Ali wrote:
> >
> > Hi,
> >
> > How can we confirm that either PyQt4 is already installed on LInux machine or not?
> >
> > Please suggest commands to confirm the already existence of PyQt4 in the machine.
>
> Ideally you make a distribution-specific package of the binary in a .deb
> on Debian or an RPM on other distros, and specify that it depends on the
> package that provides PyQt4. That way when it's installed, modern
> package managers will automatically install the dependencies.
>
> Alternatively you can use try and except in your python code to attempt
> to import something from PyQt4 and see if it fails or not. This
> technique is also used to make your code work either PyQt4 or PySide,
> depending on which the user has installed.
>
> try:
> from PySide import QtGui
> except ImportError:
> from PyQt4 import QtGui
>
> If neither are installed, this little example will end with an ImportError.
Thank you for your suggestions. I tried both but it shows the following error:
IndentationError: expected an indented block
Actually, I have to plot some graphs by using matplotlib and PyQt4 at supercomputer.
Any other suggestion???
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