为什么推荐用__name__ == ‘__main__’:
RuntimeError:
Attempt
to start
a new process before the current
process
has finished its bootstrapping phase.
This probably means that you are
on Windows and you have
forgotten
to use
the proper idiom
in the main module:
if __name__ ==
'__main__':
freeze_support()
...
The
"freeze_support()" line can be omitted
if the program
is
not going
to be frozen
to produce
a Windows executable.
