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