Create Coincident constraint

 1from salome.shaper import model
 2
 3model.begin()
 4partSet = model.moduleDocument()
 5Part_1 = model.addPart(partSet)
 6Part_1_doc = Part_1.document()
 7Sketch_1 = model.addSketch(Part_1_doc, model.defaultPlane("XOY"))
 8SketchCircle_1 = Sketch_1.addCircle(34, 28, 12)
 9SketchLine_1 = Sketch_1.addLine(41, 45, 61, 72)
10SketchConstraintCoincidence_1 = Sketch_1.setCoincident(SketchCircle_1.results()[1], SketchLine_1.startPoint())
11model.do()
12model.end()

Download this script