[QGIS3] SHP -> PostgreSQL

 l = iface.activeLayer()
type(l)
<class 'qgis._core.QgsVectorLayer'>

for _f in l.fields():
    type(l)

for _cnt, i in enumerate(l.getFeatures()):
    print(_cnt, i, i.gemetry())

g = QgsGeometry()
g.asWkb()