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										 |  |  | # Simple interface to report execution times of program fragments. | 
					
						
							|  |  |  | # Call TSTART() to reset the timer, TSTOP(...) to report times. | 
					
						
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										 |  |  | import sys, os, time | 
					
						
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							|  |  |  | def TSTART(): | 
					
						
							|  |  |  | 	global t0, t1 | 
					
						
							|  |  |  | 	u, s, cu, cs = os.times() | 
					
						
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										 |  |  | 	t0 = u+cu, s+cs, time.time() | 
					
						
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										 |  |  | 
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							|  |  |  | def TSTOP(*label): | 
					
						
							|  |  |  | 	global t0, t1 | 
					
						
							|  |  |  | 	u, s, cu, cs = os.times() | 
					
						
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										 |  |  | 	t1 = u+cu, s+cs, time.time() | 
					
						
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										 |  |  | 	tt = [] | 
					
						
							|  |  |  | 	for i in range(3): | 
					
						
							|  |  |  | 		tt.append(t1[i] - t0[i]) | 
					
						
							|  |  |  | 	[u, s, r] = tt | 
					
						
							|  |  |  | 	msg = '' | 
					
						
							|  |  |  | 	for x in label: msg = msg + (x + ' ') | 
					
						
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										 |  |  | 	msg = msg + `u` + ' user, ' + `s` + ' sys, ' + `r` + ' real\n' | 
					
						
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										 |  |  | 	sys.stderr.write(msg) |