CANADA STOCKS-TSX opens higher as energy stocks gain

July 3 (Reuters) - Canada's main stock index opened higher on Wednesday on gains in energy shares, but those of the world's largest marijuana producer Canopy Growth Corp sank after its co-chief executive officer, Bruce Linton, said he was fired from the company.

* At 9:30 a.m. ET (13:30 GMT), the Toronto Stock Exchange's S&P/TSX composite index was up 9.1 points, or 0.06%, at 16,480.39. (Reporting by Medha Singh in Bengaluru; Editing by James Emmanuel)