10.9.1 Profile Objects 
Profile objects have the following methods:
- 
Add an arbitrary labelled value to the profile output.
- 
Close the logfile and terminate the profiler.
- 
Return the file descriptor of the profiler's log file.
- 
Profile an exec-compatible string in the script environment.
The globals from the __main__ module are used as
both the globals and locals for the script.
- 
  | runcall( | func, *args, **keywords) |  
 
- 
Profile a single call of a callable.
Additional positional and keyword arguments may be passed
along; the result of the call is returned, and exceptions are
allowed to propagate cleanly, while ensuring that profiling is
disabled on the way out.
- 
  | runctx( | cmd, globals, locals) |  
 
- 
Evaluate an exec-compatible string in a specific environment.
The string is compiled before profiling begins.
- 
Start the profiler.
- 
Stop the profiler.
Release 2.4.3, documentation updated on 29 March 2006.
 
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