QgsPoint invalid argumets in PyQGIS 3

Question

I get an error:

"Invalid type in constructor arguments."

for a QgsPoint in QGIS 3.

I was fine in QGIS 2, it never gets to print D

for steps in range(numVertices):
     vertex = geom.vertexAt(steps)
     print("C", vertex)
     pt = QgsPoint(vertex)
     print("D")
     points.append(pt)

Answer 1

vertexAt method returns QgsPoint. So, you don't need to construct new one. You get the error since QgsPoint class doesn't have any constructor method which takes a QgsPoint argument in QGIS 3 unlike QGIS 2.

Use this:

for steps in range(numVertices):
     pt = geom.vertexAt(steps)
     points.append(pt)