-import functools
-import unittest
-
-try:
-
- import sympy
-
- def requires_sympy(func):
- @functools.wraps(func)
- def wrapper(self):
- return func(self)
- return wrapper
-
-except ImportError:
-
- def requires_sympy(func):
- @functools.wraps(func)
- def wrapper(self):
- raise unittest.SkipTest('SymPy is not available')
- return wrapper