sympy.py

   1 import sympy_py
   2 _mode = 'py'
   3
   4 import os
   5 if os.getenv('SYMPY_PY', '').lower() in ['y', 'yes']:
   6     print 'I: forced to be pure python'
   7
   8 else:
   9     try:
  10         # XXX better not * ?
  11         print 'I: import sympy_pyx ...',
  12         from sympy_pyx import *
  13
  14     except ImportError, e:
  15         print
  16         print '   %s' % e
  17         print 'W: can\'t import sympy_pyx -- will be pure python'
  18
  19     else:
  20         print 'ok'
  21         _mode = 'pyx'
  22
  23
  24 if _mode == 'pyx':
  25     from sympy_pyx import *
  26 else:
  27     from sympy_py import *