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??? -- https://mail.python.org/mailman/listinfo/python-list
