[Bug 325775] [NEW] interface.py crashed with "TypeError: object of type 'NoneType' has no len()"

[David Morris]

Public bug reported:

Binary package hint: envyng-core

When selecting the "Install the NVIDIA driver" option on Jaunty it
crashes with TypeError.  The full out put is shown below:

$ envyng -t

 +-------------------------------------------------+
 |                                                 |
 |             Welcome to EnvyNG                   |
 |    Developed by Alberto Milone (aka tseliot)    |
 |                                                 |
 +-------------------------------------------------+


 +-----------------------------------------------------------+
 |    EnvyNG Menu                                            |
 |                                                           |
 |    1 - Install the NVIDIA driver                          |
 |                                                           |
 |    2 - Uninstall the NVIDIA driver                        |
 |                                                           |
 |    3 - Install the ATI driver                             |
 |                                                           |
 |    4 - Uninstall the ATI driver                           |
 |                                                           |
 |    5 - Restart the Xserver                                |
 |                                                           |
 |    6 - Restart your computer                              |
 |                                                           |
 |    7 - Exit                                               |
 |                                                           |
 |    NOTE: IF THE SCREEN TURNS BLACK, PLEASE TYPE ALT+F1    |
 +-----------------------------------------------------------+
Please select one of the activities displayed above and press ENTER:

1
Traceback (most recent call last):
  File "interface.py", line 432, in <module>
    a.mainMenu()
  File "interface.py", line 295, in mainMenu
    a.driverMenu('nvidia')
  File "interface.py", line 322, in driverMenu
    self.driverPage(driver)
  File "interface.py", line 216, in driverPage
    candidateLen.append(len(details['candidate']))
TypeError: object of type 'NoneType' has no len()


Information for the currently installed version of envyng-core:

$ apt-cache show envyng-core

Package: envyng-core
Priority: optional
Section: universe/utils
Installed-Size: 876
Maintainer: Ubuntu MOTU Developers <ubuntu-motu at lists.ubuntu.com>
Original-Maintainer: Alberto Milone (tseliot) <albertomilone at alice.it>
Architecture: all
Version: 2.0.1
Replaces: envy
Depends: python (<< 2.6), python (>= 2.5), python-central (>= 0.6.7), python-gobject, python-dbus, python-apt, python-xkit, nvidia-common, fglrx-modaliases
Filename: pool/universe/e/envyng-core/envyng-core_2.0.1_all.deb
Size: 120016
MD5sum: 282d2b0c04fcca84f8b151a33bc4c402
SHA1: 77d38dec9f44ef56e6ade3c8cd5d5a1f68201d6a
SHA256: c58eff1b4fc4c4c22579e9d3355d50d41bbf79948260dd13dda52da5ef1aa87a
Description: install the ATI or the NVIDIA driver
 EnvyNG is an application written in Python which will download the
 latest ATI or NVIDIA driver or the Legacy driver (for older cards)
 (according to the model of your card) from ATI or Nvidia's website
 and set it up for you handling dependencies (compilers, OpenGL,
 etc.) which are required in order to build and use the driver.
Python-Version: 2.5
Bugs: mailto:ubuntu-users at lists.ubuntu.com
Origin: Ubuntu

** Affects: envyng-core (Ubuntu)
     Importance: Undecided
         Status: New

-- 
interface.py crashed with "TypeError: object of type 'NoneType' has no len()"
https://bugs.launchpad.net/bugs/325775
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