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to fix #39 also in Python2

As PyState_AddModule is not yet called in the module definition,
PyState_FindModule will not work, so for Python 3 we need to get the
module from the methods definition to retrieve a pointer to dgpyError.

Fix #39

* as a container of the signals created with create_signal_wrapper.
* This makes them available to other entities via the pool.

  isPluged -> isPlugged.

  - add isPlugged and getPlugged methods,
  - add property getter name.

Nicolas Mansard authored 13 years ago and Nicolas Mansard committed 12 years ago

  If a signal contains a data deriving from Vector or Matrix, cast content into
  Matrix or Vector using plug machinery.

    Throwing an exception in the C/Python API makes the python interpreter
    terminate. The correct way is to catch C++ exception and to raise python
    errors with the same message.

    This reverts commit b055ba73.
    This commits seems to have side effects. Revert it temporarily.

  This avoids to miss exceptions and to terminate the python interpreter.

Nicolas Mansard authored 14 years ago and Nicolas Mansard committed 14 years ago

Added some specific convertion for vector, matrix and double signal, from C to Python (to avoid unnecessary convertion through strings.