Public bug reported:
Description: Ubuntu 14.04.3 LTS
Release: 14.04
trusty version of the lib packaged by ROS
ros-indigo-urdfdom-py:
Installed: 0.3.0-2trusty-20150424-0403-+0000
Candidate: 0.3.0-2trusty-20150424-0403-+0000
Version table:
*** 0.3.0-2trusty-20150424-0403-+0000 0
400 http://packages.ros.org/ros/ubuntu/ trusty/main amd64 Packages
100 /var/lib/dpkg/status
Details :
What should happen : urdfparser_py should parse without errors a valid
example of a transmission (new type) given in the reference
http://wiki.ros.org/urdf/XML/Transmission
What happened : urdfparser_py fails to parse the valid new type of
transmission. It requires a hardwareInterface to be there where this is
not mandatory (but could exist)
Traceback (most recent call last):
File "./test_urdf.py", line 48, in <module>
robot = URDF.from_xml_file(urdf_filename)
File
"/opt/ros/indigo/lib/python2.7/dist-packages/urdf_parser_py/xml_reflection/core.py",
line 491, in from_xml_file
return cls.from_xml_string(xml_string)
File
"/opt/ros/indigo/lib/python2.7/dist-packages/urdf_parser_py/xml_reflection/core.py",
line 486, in from_xml_string
return cls.from_xml(node)
File
"/opt/ros/indigo/lib/python2.7/dist-packages/urdf_parser_py/xml_reflection/core.py",
line 481, in from_xml
return cur_type.from_xml(node)
File
"/opt/ros/indigo/lib/python2.7/dist-packages/urdf_parser_py/xml_reflection/core.py",
line 171, in from_xml
obj.read_xml(node)
File
"/opt/ros/indigo/lib/python2.7/dist-packages/urdf_parser_py/xml_reflection/core.py",
line 474, in read_xml
self.XML_REFL.set_from_xml(self, node)
File
"/opt/ros/indigo/lib/python2.7/dist-packages/urdf_parser_py/xml_reflection/core.py",
line 406, in set_from_xml
element.add_from_xml(obj, child)
File
"/opt/ros/indigo/lib/python2.7/dist-packages/urdf_parser_py/xml_reflection/core.py",
line 312, in add_from_xml
value = self.value_type.from_xml(node)
File
"/opt/ros/indigo/lib/python2.7/dist-packages/urdf_parser_py/xml_reflection/core.py",
line 220, in from_xml
raise Exception(out)
Exception: Could not perform duck-typed parsing.
Value Type: <class 'urdf_parser_py.urdf.Transmission'>
Exception: Required element not set in XML: hardwareInterface
Value Type: <class 'urdf_parser_py.urdf.PR2Transmission'>
Exception: Required attribute not set in XML: type
** Affects: urdfdom (Ubuntu)
Importance: Undecided
Status: New
** Tags: parser transmission urdf
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https://bugs.launchpad.net/bugs/1487180
Title:
urdfparser_py fails on valid new transmission element
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