On Dec 12, 2014 11:56 AM, "hugocoolens" <hugocool...@gmail.com> wrote: > > On Monday, December 8, 2014 9:00:13 PM UTC+1, sohca...@gmail.com wrote: > > On Monday, December 8, 2014 10:46:47 AM UTC-8, Jean-Michel Pichavant wrote: > > > ----- Original Message ----- > > > > From: sohcahto...@gmail.com > > > > try: > > > > import someModule > > > > except ImportError: > > > > print "Module is missing" > > > > # handle it! > > > > > > > > Just make sure to attempt to import it again after making the call to > > > > pip to install it. > > > > > > Note that ImportError may be raised for other reasons than a missing module. > > > > > > Check https://docs.python.org/2/library/imp.html and the imp.find_module, it could be a safer way to check for a missing module. > > > > > > JM > > > > > > > > > -- IMPORTANT NOTICE: > > > > > > The contents of this email and any attachments are confidential and may also be privileged. If you are not the intended recipient, please notify the sender immediately and do not disclose the contents to any other person, use it for any purpose, or store or copy the information in any medium. Thank you. > > Good point. > > Of course, imp.find_module ALSO throws ImportError if the module can't be found, but at least in that case, you'd know the exact cause. > > Thanks for the suggestions, you can see here below what I came up with. > All suggestions/corrections welcome: > > #!/usr/bin/env python > import imp > import os > import sys > try: > imp.find_module('rtlsdr') > except ImportError: > print('Module rtlsdr is missing') > print("I'll try to install it") > os.system('sudo pip install pyrtlsdr') > try: > imp.find_module('rtlsdr') > except ImportError: > sys.exit('Sorry could not install module rtlsdr, contact your > local Python-guru') > import rtlsdr > print('Module rtlsdr succesfully imported') > > > > -- > https://mail.python.org/mailman/listinfo/python-list
This is bad practice. The user should install it themselves: sudo pip may interfere with virtualenv and OS package managers. Just tell the user what to install and call it a day. -- Chris Warrick <https://chriswarrick.com/> Sent from my Galaxy S3.
-- https://mail.python.org/mailman/listinfo/python-list
