pymod branch: reimplemented methods are not getting called

[klayoutmatthias]

See https://www.klayout.de/forum/discussion/1152

The following code isn't working in the standalone module. In the application this will produce a layout with three circles.

Reason: gsi::Callback::can_issue (gsiCallback.h:76 and then pyaObject.cc:119) checks for pya::PythonInterpreter::instance() != 0 which is not the case for the standalone module.

import klayout.db as pya

# --------------------------------------------------------
#  Library definition

class TestPCell(pya.PCellDeclarationHelper):

  def __init__(self):

    super(TestPCell, self).__init__()

    self.param("l", self.TypeLayer, "Layer", default = pya.LayerInfo(1, 0))
    self.param("r", self.TypeDouble, "Radius", default = 1000.0)
    self.param("n", self.TypeInt, "Number of points", default = 64)

  def display_text_impl(self):
    return "Circle (l=%s,r=%.12g,n=%d)" % (str(self.l), self.r, self.n)
  
  def produce_impl(self):
    self.cell.shapes(self.l_layer).insert(pya.DPolygon.ellipse(pya.DBox(-self.r, -self.r, self.r, self.r), self.n))

class TestLib(pya.Library):

  def __init__(self):
    self.description = "Test library"
    self.layout().register_pcell("Circle", TestPCell())
    self.register("TestLib")
    
# create and register the library
lib = TestLib()


# --------------------------------------------------------
#  Client code

lay = pya.Layout()
top = lay.create_cell("TOP")

output_file = "test.gds"

para = { "l": pya.LayerInfo(1, 0) }

pcell = lay.create_cell("Circle", "TestLib", para)
trans = pya.DCplxTrans.new(1, 0, False, 0, 0)
top.insert(pya.DCellInstArray(pcell.cell_index(), trans))

para = { "l": pya.LayerInfo(2, 0), "r": 750.0 }

pcell = lay.create_cell("Circle", "TestLib", para)
trans = pya.DCplxTrans.new(1, 0, False, 0, 2000.0)
top.insert(pya.DCellInstArray(pcell.cell_index(), trans))

para = { "l": pya.LayerInfo(2, 0), "r": 500.0, "n": 16 }

pcell = lay.create_cell("Circle", "TestLib", para)
trans = pya.DCplxTrans.new(1, 0, False, 0, 3000.0)
top.insert(pya.DCellInstArray(pcell.cell_index(), trans))

lay.write(output_file)

[klayoutmatthias]

Was fixed with 934bed7 in pymod branch