2. :mod:`profile`, a pure Python module whose interface is imitated by
:mod:`cProfile`. Adds significant overhead to profiled programs. If you're
trying to extend the profiler in some way, the task might be easier with this
Copyright © 1994, by InfoSeek Corporation.
The :mod:`profile` and :mod:`cProfile` modules export the same interface, so
they are mostly interchangeable; :mod:`cProfile` has a much lower overhead but
functions should be used with care and should be as fast as possible. For the
best results with a custom timer, it might be necessary to hard-code it in the C
source of the internal :mod:`_lsprof` module.
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