title: retrive minimum maximum values of a ctype
body: <p>I parse some ASCII text using python which return me strings like:
  UI8, SI32, etc...</p>
  
  <p>Based on those strings I need to compute the maximum value of the types and to replace them with following strings:
  unsigned char, signed long, etc...</p>
  
  <p>I found in python <a href="https://docs.python.org/3/library/ctypes.html" rel="nofollow">ctypes</a> lib, but i was unable to find how to get maximum\minimum.</p>
  
  <p>Does Python have something exquivalent to <code>std::numeric_limits</code> in C++?</p>