genpy

The Python ROS message and service generator.

Examples for generating messages with dependencies

./scripts/genmsg_py.py -p std_msgs -Istd_msgs:`rospack find std_msgs`/msg -o gen `rospack find std_msgs`/msg/String.msg
./scripts/genmsg_py.py -p geometry_msgs -Istd_msgs:`rospack find std_msgs`/msg -Igeometry_msgs:`rospack find geometry_msgs`/msg -o gen `rospack find geometry_msgs`/msg/PoseStamped.msg

Changelog for package genpy

0.6.16 (2021-05-01)

• Fix runtime incompatibility with messages generated with 0.6.14 (#139)
• Contributors: Shane Loretz

0.6.15 (2021-04-12)

• Update maintainers (#135)
• Check for Python 3 before looking up codec (#134)
• Add check for float32 and float64 to check_type (#131)
• Contributors: Dirk Thomas, Martin Günther, Shane Loretz

0.6.14 (2020-08-10)

• create Struct objects to save memory (#129)

0.6.13 (2020-07-20)

• don't raise exceptions on unicode decode error (#127)

0.6.12 (2020-05-28)

• fix check_type for uint8[] to accept bytes (#123)

0.6.11 (2020-05-12)

• support non-int integral time parameters (#121)

0.6.10 (2020-01-24)

• various code cleanup (#117)
• update logic for newer PyYAML output for dump() (#116)
• small optimization in dynamic.py (#109)
• use setuptools instead of distutils (#115)
• bump CMake version to avoid CMP0048 warning (#114)
• serialization: always set _x var for correct exception msg (#113)
• sort generated imports to make them reproducible (#111)
• make the generated "struct" constructs reproducible (#110)

0.6.9 (2019-10-03)

• fix Python 3 buffer handling (#106)
• Python 3 compatibility (#104)
• fix usage of undefined variables in exception (#105)
• convert map iterator to list (#103)
• fix negative limit check for signed ints (#102)
• failing test case for UTF-8 encoded characters in comments (#95)

0.6.8 (2019-03-04)

• check size of fixed sized arrays when serializing (#92)
• allow returning derived types in overloaded operators (#100)
• reload() was move into importlib in Python 3 (#98)
• fix _convert_getattr for handling uint8[] message fields in Python 3 (#96)

0.6.7 (2017-10-26)

• use errno to detect existing dir (#89)
• fix typo (#84)

0.6.6 (2017-07-27)

• add escaping for strings which is valid in YAML (#79)
• fix inefficient canon method in rostime (#77)

0.6.5 (2017-03-06)

• expose spec for dynamically generated messages (#75)

0.6.4 (2017-02-27)

• fix default value for non-primitive fixed-size arrays, regression of 0.6.1 ([#74 <https://github.com/ros/genpy/issues/74>]{.title-ref})

0.6.3 (2016-10-24)

• fix Python 3 regressions (#71)
• use Python safe subfields for nested types (#69)

0.6.2 (2016-09-03)

• fix regression regarding lazy init introduced in 0.6.1 (#67)

0.6.1 (2016-09-02)

• lazy init struct (#65)
• fix default value of lists to not expand to N items in the generated code (#64)
• simpler and more canonical hash (#55)
• various improvements to the time and duration classes (#63)

0.6.0 (2016-04-21)

• change semantic of integer division for duration (#59)

0.5.9 (2016-04-19)

• warn about using floor division of durations (#58)
• allow durations to be divided by other durations (#48)
• avoid adding newline in msg_generator (#47, #51)

0.5.8 (2016-03-09)

• right align nsec fields of timestamps (#45)
• fix order of imports in generated init files deterministic (#44)
• fix exception handling code using undefined variable (#42)
• add test for expected exception when serializing wrong type

0.5.7 (2015-11-09)

• add line about encoding to generated Python files (#41)

0.5.6 (2015-10-12)

• fix handling of dynamic message classes with names containing other message classes as substrings (#40)

0.5.5 (2015-09-19)

• fix handling of dynamic message classes with the same name (#37)
• fix Duration.abs() when sec is zero (#35)

0.5.4 (2014-12-22)

• add support for fixed-width floating-point and integer array values (ros/ros_comm#400)
• add missing test dependency on yaml

0.5.3 (2014-06-02)

• make TVal more similar to generated messages for introspection (ros/std_msgs#6)

0.5.2 (2014-05-08)

• fix usage of load_manifest() introduced in 0.5.1 (#28)

0.5.1 (2014-05-07)

• resolve message classes from dry packages (ros/ros_comm#293)
• add architecture_independent flag in package.xml (#27)

0.5.0 (2014-02-25)

• use catkin_install_python() to install Python scripts (#25)

0.4.15 (2014-01-07)

• python 3 compatibility (#22)
• use PYTHON_EXECUTABLE when invoking scripts for better Windows support (#23)
• improve exception message when message type does not match (#21)

0.4.14 (2013-08-21)

• make genpy relocatable (ros/catkin#490)
• enable int/long values for list of time/duration (#13)
• fix issue with time/duration message fields (without std_msgs prefix) when used as array (ros/ros_comm#252)
• fix Time() for seconds being of type long on 32-bit systems (fix #15)
• fix passing keys to _fill_message_args (#20)

0.4.13 (2013-07-03)

• check for CATKIN_ENABLE_TESTING to enable configure without tests

0.4.12 (2013-06-18)

• fix deserialize bytes in Python3 (#10)

0.4.11 (2013-03-08)

• fix handling spaces in folder names (ros/catkin#375)

0.4.10 (2012-12-21)

• first public release for Groovy