python - re.search becomes unresponsive -

When I run this code, it can not be either 'checked' and not printed Does not match ' This stops responding altogether.

  url = 'http: //hoswifi.bblink.cn/v3/2-fd1cc0657845832e5e1248e6539a50fa/topic/55-13950.html? From home = home 'em = search (r' / \ d- (B | (\ w +) {10,64}) / index.html ', url) if m: print (' check ') other: print ( 'Do not match')  
  s = '  
 
 
 
 Our string has 10 digits, and it contains  Z 'is not . It is deliberate so that it forces  re.search  to check possible combinations  all , else it will stop the first match. 
 
 I can not calculate the number of possible combinations, because the math involved is difficult, but here is a small demonstration, when  s  gets more points: 
 
  
 
 The time for a digit is approximately 1μ  s  goes from  s  to 30 seconds, that is, 10  8  more time 
 
 
 I think that something like this happens when you use  (\ w +) {10,64} . Instead, you should use  \ w {10,64} . 
 
 
 The code used for the demo: 
 
  import time import import matplotlib.pyplot such as plt setup = "" import re "" _base_stmt = "M = re (1, '11', '111' ...) in the statement = {} category (1, '' ('\ w +) * z', '{}')" # 18): statements .update ({i: _base_stmt.format ('1' * i)}) for # x y, x = [] y = [] sorts (statement): x.append (i) Y.append ( Timeit.timeend (description [i], setup, number = 1) #plot plt.plot (x, y) plt.xlabel ('string length') plt.ylabel ('time (seconds)') Plt.show )