fa7d8e30da
Continue the outer loop, break of the inner loop.
Else you get a usb_dir NoneType exception in os.path.join if there's a device without idProduct, idVendor, bcdDevice sysfs files.
```
Unable to open device <calibre.devices.kindle.driver.KINDLE2 object at 0x7f7a05c23e90>
Traceback (most recent call last):
File "/usr/lib/calibre/calibre/gui2/device.py", line 201, in do_connect
dev.open(detected_device, self.current_library_uuid)
File "/usr/lib/calibre/calibre/devices/usbms/device.py", line 809, in open
self.open_linux()
File "/usr/lib/calibre/calibre/devices/usbms/device.py", line 560, in open_linux
main, carda, cardb = self.find_device_nodes()
File "/usr/lib/calibre/calibre/devices/usbms/device.py", line 471, in find_device_nodes
ven, prod, bcd = map(e, ('idVendor', 'idProduct', 'bcdDevice'))
File "/usr/lib/calibre/calibre/devices/usbms/device.py", line 470, in <lambda>
e = lambda q : raw2num(open(j(usb_dir, q), 'rb').read().decode('utf-8'))
File "/usr/lib/python2.7/posixpath.py", line 70, in join
elif path == '' or path.endswith('/'):
AttributeError: 'NoneType' object has no attribute 'endswith'
```
calibre
calibre is an e-book manager. It can view, convert, edit and catalog e-books in all of the major e-book formats. It can also talk to e-book reader devices. It can go out to the internet and fetch metadata for your books. It can download newspapers and convert them into e-books for convenient reading. It is cross platform, running on Linux, Windows and macOS.
For more information, see the calibre About page
Screenshots
Usage
See the User Manual
Development
Setting up a development environment for calibre
A tarball of the source code for the current calibre release.
Bugs
Bug reports and feature requests should be made in the calibre bug tracker at launchpad. GitHub is only used for code hosting and pull requests.
Support calibre
calibre is a result of the efforts of many volunteers from all over the world. If you find it useful, please consider contributing to support its development. Donate to support calibre development.
Building calibre binaries
See Build instructions for instructions on how to build the calibre binaries and installers for all the platforms calibre supports.