fixes issue #6
fixes issue #6


Former-commit-id: f326215a42bdac116cdc2e2bbd0e223144cd8bb1 [formerly 53de272b3cb0e7959dea8ec479a72a5caf8ce68f] [formerly 621dc8f9a71876b30ade9ed2383298b16f075d24]
Former-commit-id: 2467400b55349397f5a59ac2206264ab5c336b45
Former-commit-id: cb90b7af8fdd03149579973895aa39fb86df305d
DEIB-GECO/PyGMQL,DEIB-GECO/PyGMQL