Exec'ing code gives the wrong filename.  A warning now, while we figure it out. Part of #380.
Exec'ing code gives the wrong filename.  A warning now, while we figure it out. Part of #380.

nedbat/coveragepy,blueyed/coveragepy,nedbat/coveragepy,hugovk/coveragepy,nedbat/coveragepy,larsbutler/coveragepy,7WebPages/coveragepy,nedbat/coveragepy,jayhetee/coveragepy,7WebPages/coveragepy,nedbat/coveragepy,jayhetee/coveragepy,hugovk/coveragepy,7WebPages/coveragepy,larsbutler/coveragepy,blueyed/coveragepy,larsbutler/coveragepy,jayhetee/coveragepy,hugovk/coveragepy,blueyed/coveragepy,hugovk/coveragepy,jayhetee/coveragepy,larsbutler/coveragepy,blueyed/coveragepy,larsbutler/coveragepy,hugovk/coveragepy,7WebPages/coveragepy,jayhetee/coveragepy,blueyed/coveragepy