there is one or not.

added some type checking / an error message to scan so it will fail a little more gracefully if passed bad arguments

added name of output variable error message to facilitate debugging (can someone who knows who the exception works push it into the text of the exception?)

characters.

division by 0)

and I'm calling directly the linker call_time is more close to what this
code expects.

Removed shared / shared_constructor / pfunc from compile.sandbox, please use theano.shared / theano.function instead

Added option config.on_opt_error to decide between a warning vs an exception when a crash occurs in an optimization