Fix file reading with sparser bugs.
Fix file reading with sparser bugs.

sorgerlab/belpy,sorgerlab/indra,johnbachman/belpy,bgyori/indra,sorgerlab/belpy,bgyori/indra,bgyori/indra,pvtodorov/indra,johnbachman/belpy,sorgerlab/indra,pvtodorov/indra,pvtodorov/indra,johnbachman/indra,sorgerlab/belpy,johnbachman/belpy,sorgerlab/indra,pvtodorov/indra,johnbachman/indra,johnbachman/indra