One way to investigate what's going on is to set the PYUSB_DEBUG=debug environment variable.
2016-05-09 11:53 GMT-03:00 Jay Newens <j...@nemo-q.com>: > I have been having issues getting my program to run as an exe using packager > pyinstaller version 3.1.1. There is a version 3.2 but it has other issues so > I cannot use it. My program checks the status of the Zebra KR403 printer and > my program works fine in my Python 2.7.9 environment, PYUsb 1.0.0, on > Windows 7, but when I create the exe it does not work. Pyinstaller 2.1 > works ok but my other parts of my program have been updated and I cannot use > it any longer, the list of problems there is too long. > > > > This is how I set up the backend in my code in my python environment: > > > > import usb > > import usb.core > > import usb.util > > import usb.backend.libusb10 as libusb10 > > import sys > > import requests > > dev = usb.core.find(idVendor= int(VID), idProduct= int(PID), > backend=libusb10.get_backend()) > > > > After creating my exe, when I run it from the command prompt I get the > following: > > > > Traceback (most recent call last): > > File "<string>", line 184, in <module> > > File "usb\core.py", line 846, in find > > ValueError: No backend available > > ZebraKR403PaperStatus2.2 returned -1 > > > > I understand that this could be an issue with pyinstaller and I will report > the same issue there. Does anyone else have this issue or have a solution? > > > > Thanks in advance: > > > > Jay > > > > > > > > > > > > > ------------------------------------------------------------------------------ > Find and fix application performance issues faster with Applications Manager > Applications Manager provides deep performance insights into multiple tiers > of > your business applications. It resolves application problems quickly and > reduces your MTTR. Get your free trial! > https://ad.doubleclick.net/ddm/clk/302982198;130105516;z > _______________________________________________ > pyusb-users mailing list > pyusb-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/pyusb-users > -- Best Regards, Wander Lairson Costa ------------------------------------------------------------------------------ Mobile security can be enabling, not merely restricting. Employees who bring their own devices (BYOD) to work are irked by the imposition of MDM restrictions. Mobile Device Manager Plus allows you to control only the apps on BYO-devices by containerizing them, leaving personal data untouched! https://ad.doubleclick.net/ddm/clk/304595813;131938128;j _______________________________________________ pyusb-users mailing list pyusb-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/pyusb-users
