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py/pyext - python script objects for PD and Max/MSP
Copyright (c)2002-2005 Thomas Grill (gr@grrrr.org)
For information on usage and redistribution, and for a DISCLAIMER OF ALL
WARRANTIES, see the file, "license.txt," in this distribution.
Donations for further development of the package are highly appreciated.
Visit https://www.paypal.com/xclick/business=gr%40grrrr.org&item_name=pyext&no_note=1&tax=0¤cy_code=EUR
----------------------------------------------------------------------------
You will need the flext C++ layer for PD and Max/MSP externals to compile this.
see http://grrrr.org/ext/flext
----------------------------------------------------------------------------
Goals/features of the package:
Access the flexibility of the python language in PD and MaxMSP
PD - Load it as i library with e.g. "pd -lib py -path scripts"
Check out the sample patches and scripts
Description:
With the py object you can load python modules and execute the functions therein.
With the pyext you can use python classes to represent full-featured pd/Max message objects.
Multithreading (detached methods) is supported for both objects.
You can send messages to named objects or receive (with pyext) with Python methods.
Known bugs:
- The TCL/TK help patch is not usable under OSX.
- With standard PD 0.37, threaded py scripts will cause "Stack overflows" under some circumstances
-> use PD 0.38 or the devel_0_37 cvs branch instead
----------------------------------------------------------------------------
The py/pyext package should run with Python version >= 2.1.
It has been thoroughly tested with versions 2.2 to 2.4
----------------------------------------------------------------------------
Version history:
0.2.0:
- ADD: handling of Python threads
- FIX: output of single atoms instead of 1-element lists
- ADD: new detach mechanism (call queue)
- ADD: support for Max/MSP @ OSX and Windows
- DEL: eliminated meaningless inchannels and outchannels methods
0.1.4:
- ADD: better (and independent) handling of inlet and outlet count (as class variables or dynamically initialized in __init__)
- FIX: many memory leaks associated to ***GetItem stuff (big thanks to sven!)
- FIX: set "this" memory in object after reloading script
- ADD: _getvalue,_setvalue to access PD values
- FIX: don't shout when Python script returns PyNone
- ADD: alias creation names pyext. and pyx. take the script name also for the class name
0.1.3:
- FIX: class variables are now set atomic if parameter list has only 1 element
- ADD: introduced shortcut "pyx" for pyext.
- ADD: arguments to the pyext class are now exposed as attributes "args"
- FIX: parameters to Python functions are treated as integers when they can be.
- ADD: inlet and outlet count can be given for pyext, python _inlet and _outlet members are ignored then
- FIX: crash if script or class names are non-strings
- FIX: long multi-line doc strings are now printed correctly
- FIX: message "doc+" for class/instance __doc__ now working
- FIX: improved/debugged handling of reference counts
- FIX: _pyext._send will now send anythings if feasible
- CHANGE: no more finalization - it's really not necessary...
- FIX: calling from unregistered threads (like flext helper thread) now works
0.1.2:
- CHANGE: updates for flext 0.4.1 - method registering within class scope
- FIX: bugs in bound.cpp (object_free calls)
- FIX: bug with threaded methods along with flext bug fix.
- ADD: map Python threads to system threads
- ADD: shut down the Python interpreter appropriately
- CHANGE: use flext timer and bind functionality
- ADD: attribute functionality
- ADD: dir and dir+ methods for Python dictionary listing
- ADD: get and set methods for Python class attributes
0.1.1:
- CHANGE: updates for flext 0.4.0
- FIX: crash when module couldn't be loaded
- FIX: GetBound method (modmeth.cpp, line 138) doesn't exist in flext any more
- FIX: deadlock occured when connecting to py/pyext boxes in non-detached mode
- ADD: current path and path of the canvas is added to the python path
- FIX: path is not added to python path if already included
0.1.0:
- completely reworked all code
- added class functionality for full-featured objects and renamed the merge to pyext
- enabled threads and made everything thread-safe ... phew!
- using flext 0.3.2
- pyext now gets full python path
- python's argv[0] is now "py" or "pyext"
- etc.etc.
0.0.2:
- fixed bug when calling script with no function defined (thanks to Ben Saylor)
- cleaner gcc makefile
0.0.1:
- using flext 0.2.1
---------------------------------------------------------------------------
TODO list:
general:
- Documentation and better example patches
- better error reporting for runtime errors
features:
- enable multiple interpreters?
- stop individual threads
- Python type for symbols
- support named (keyword) arguments (like attributes for messages)
tests:
- check for python threading support
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