Minimum requirements raised

• Python 3.9 or higher.

For binary PyPI wheel:

• glibc 2.28 or higher. (Debian 10+, Ubuntu 18.10+, CentOS/RHEL 8+)
• pip 20.3 or higher.
• Added 32 bit ARM (armv7l) architecture wheel.

Default bus changes

Previously the default bus always used the context-local variables to store the reference to the current default bus. As it turned out the context tends to be changed a lot which resulted in new buses being opened multiple times. (reported by @wes8ty)

To avoid this the default bus was changed to be thread-local. set_default_bus will now set the thread-local default bus.
A new function set_context_default_bus was added to set the context-local bus. The get_default_bus will return the context-local bus if set or thread-local otherwise. If no default bus has been set a new thread-local bus will be initialized and set.

Code generator

• Code generator will now add manual D-Bus member name override where automatic snake_case to CamelCase does not result in the original member name. This applies to when member renaming options were used. (reported by @nicomuns)
• Generated code will now use Python 3.9 built-in collections type hints. (typing.List[str] -> list[str])
• Fixed blocking generated code adding unexpected result_args_names keyword. (reported by @christophehenry)

Features

• All sdbus.utils.parse functions can now accept the blocking interfaces. (requested by @christophehenry)
• Added boolean use_interface_subsets option to sdbus.utils.parse functions. When enabled the subset of interfaces will be considered a valid match. (requested by @christophehenry)

Fixes

• Fixed exceptions mapped by map_exception_to_dbus_error not being translated from Python to D-Bus errors. This means the Python built-in exceptions will now be properly returned as D-Bus errors when raised in exported object callback. The built-in exceptions translating as added back in version 0.10.0 but probably never worked correctly. (reported by @arkq)
• Fixed not being able to export interfaces with no implemented D-Bus members. This also means export_to_dbus will only access D-Bus related attributes avoiding triggering unrelated @property methods.
• Renamed certain internal classes from Binded to Bound and from DbusSomething to DbusMember. (reported by @souliane, implemented by @dragomirecky)

Python 3.8 reached the end of life. This version is the last version to support Python 3.8.

Code generator improvements

• Added interface and member renaming CLI options. --select-interface, --select-method, --select-property and --select-signal will select a particular interface or member and --set-name will set the selected interface or member Python name.
• Fix generated D-Bus properties not using emits changed flag by default.
• Fix generated D-Bus methods not using unprivileged flag by default. (reported by @damienklotz77)
• Generated methods and signals will now have result argument names set which will be shown in the introspection. (requested by @colazzo)

New sdbus.utils.inspect submodule

Contains inspection utilities.

Current only provides the inspect_dbus_path function which will return the D-Bus path of either proxy or exported object. (requested by @sassanh)

New sdbus.utils.parse submodule

The existing parse_properties_changed, parse_interfaces_added, parse_interfaces_removed and parse_get_managed_objects have been moved from from sdbus.utils to sdbus.utils.parse.

For backwards compatibility sdbus.utils re-exports those functions but no new exports will be added to it.

Fixes

• Fix bus timeouts not being processed on time. (requested by @ofacklam)

Python 3.8 is getting end of life in 2024. Python-sdbus will most likely increase the minimum Python version requirement to 3.9 in 2024.

This version significantly reworked the internal undocumented classes
and functions. If you used the undocumented API you would probably need
to adjust your code. Type checker like mypy can be very useful for this.

Features:

• @setter_private can now be used in overrides. (requested by @colazzo)
• Added assertDbusSignalEmits method to IsolatedDbusTestCase.
  Can be used to assert that a D-Bus signal was emitted
  inside the async with block.
• Added sdbus.utils.parse_get_managed_objects function. Can be
  used to parse the ObjectManager's get_managed_objects method
  data to classes and Python attribute names.
• Added a handle that is returned by export_to_dbus and export_with_manager
  methods. This handle can be used to explicitly control when object is accessible
  from D-Bus. (requested by @dragomirecky)

Fixes:

• Fixed async D-Bus properties not having a proper generic typing. (reported by @ValdezFOmar)
• Fixed build not working when systemd has a minor version suffix.
• Fixed being unable to name arguments in D-Bus introspection when
  method has no return arguments. (reported by @colazzo)
• Fixed serving D-Bus methods that return a single struct. (reported by @colazzo)
• Fixed sending extremely large D-Bus messages getting stuck. (reported by @colazzo)

This version significantly reworked the internal undocumented classes
and functions. If you used the undocumented API you would probably need
to adjust your code. Type checker like mypy can be very useful for this.

Features:

• @setter_private can now be used in overrides. (requested by @colazzo)
• Added assertDbusSignalEmits method to IsolatedDbusTestCase.
  Can be used to assert that a D-Bus signal was emitted
  inside the async with block.
• Added sdbus.utils.parse_get_managed_objects function. Can be
  used to parse the ObjectManager's get_managed_objects method
  data to classes and Python attribute names.
• Added a handle that is returned by export_to_dbus and export_with_manager
  methods. This handle can be used to explicitly control when object is accessible
  from D-Bus. (requested by @dragomirecky)

Fixes:

• Fixed async D-Bus properties not having a proper generic typing. (reported by @ValdezFOmar)
• Fixed build not working when systemd has a minor version suffix.
• Fixed being unable to name arguments in D-Bus introspection when
  method has no return arguments. (reported by @colazzo)
• Fixed serving D-Bus methods that return a single struct. (reported by @colazzo)
• Fixed sending extremely large D-Bus messages getting stuck. (reported by @colazzo)

Features:

• Improved interface generator handling of multiple uppercase letters
  sequences. For example, ACTIVATE_CONNECTION would before be converted
  to a_c_t_i_v_a_t_e__c_o_n_n_e_c_t_i_o_n and after to activate_connection.
  (reported by @bhattarabi)
• Improved python formatting generated by interface code generator.
• Added option --block to generate blocking interface code.
  (requested by @zhanglongqi and @MathisMARION)

Fixes:

• Fixed docstrings still being present even if python was configured with
  --without-doc-strings.
• Fixed interface generator crashing when a rare write-only property is
  encountered. (reported by @gotthardp)
• Fixed async interfaces iterating over all members during initialization.
  (reported by @gotthardp)
• Fixed TypeError: Dbus type '\x00' is unknown being raised when trying to read
  from a message more than one time. (reported by @IB1387 and @asmello)
• Fixed missing class body when generating code for interface without members.

Features:

• Added support for None signals without data.
• Added boolean flags for the name request functions
  which can be used to specify replacements or queueing.
• Added sdbus.utils.parse_properties_changed helper function.
  Parses signal data to python member names and values.
• Added sdbus.utils.parse_interfaces_added helper function.
  Parses signal data to path, python class and python member names
  and values.
• Added sdbus.utils.parse_interfaces_removed helper function.
  Parses signal data to path and python class.
• Added setter_private decorator to async properties. Private
  setter can only be called locally but to D-Bus property will
  appear as read only.
• Added new exceptions for when D-Bus name requests fail.
  • SdBusRequestNameExistsError: Someone already owns name.
  • SdBusRequestNameAlreadyOwnerError: Caller already owns name.
  • SdBusRequestNameInQueueError: Name request queued up.

Deprecations:

• Moved all exceptions to sdbus.exceptions module.
  For backwards compatibility old exceptions will be
  available from the root module until the version 1.0.0.

Fixes:

• Fixed autodoc adding dbus_method to dbus methods names
• Fix async D-Bus name requests not raising appropriate exceptions.
• Fixed request_default_bus_name being an async function.
  For backwards compatibility it returns an awaitable that raises a warning.

Features:

• Added on_unknown_member option to the properties_get_all_dict
  method. Specifies the action on what to do with unknown property.
  ("error" (default), "ignore", "reuse")

Fixes:

• Fixed autodoc regressions introduced in 0.10.1.
  Properties and signals headers have been redesigned.
• Fixed PropertiesChanged signal emitting only the newest object
  path.

Features:

• Added catch_anywhere method to dbus signals.
  Creates an async iterator which yields object path that emitted
  signal and signal data. Can be called from class but requires explicit
  service name in that case.
• Added properties_get_all_dict() method to DbusInterfaceCommonAsync and
  DbusInterfaceCommon classes. Retrieves all D-Bus object properties as
  a dictionary where keys are member names translated to Python names and
  values are property values.

Features:

• Mapped all built-in Python exceptions to D-Bus errors.
• Default bus connection now uses context/thread-local storage. This is potentially
  breaking in code that used bus in a different threads or contexts.
• Added map_exception_to_dbus_error which lets mapping of any exception to D-Bus
  error name.
• D-Bus interfaces and member names are now verified before exporting to D-Bus.
  A helpful error message will be returned if verification fails.
• Added ability to export and track objects with ObjectManager.
• Added sdbus.unittest.IsolatedDbusTestCase which is a test case that
  runs on a separated D-Bus instance. Requires dbus-daemon command be installed.
• Allow replacing the default bus. Changing default bus will not have effect on
  existing objects which will continue to use the old bus.

Fixes:

• Fixed non-mapped errors in methods called from D-Bus not returning generic
  error.
• Fixed errors in properties always returning Access Denied instead of specific
  or generic D-Bus errors.
• Fixed str and int subclasses not being accepted on fast API.
• Fixes trying to process a disconnected bus and causing high CPU usage.
• Marked autodoc extension safe for parallel reading and writing.

• pkg-config is now required when building from source.
• Added support for Alpine Linux and any other distros using elogind instead of systemd.
• Improved PropertiesChanged signal emissions for python objects.
• Fixed python D-Bus methods that return single struct.