---------------------------------------------------------------------------
KeyboardInterrupt                         Traceback (most recent call last)
<ipython-input-43-fefb5a1b3c31> in <module>
----> 1 integrand = sp.Integral(integrand,(x,-oo,oo)).doit()
      2 display(integrand)

~\.conda\envs\py37\lib\site-packages\sympy\integrals\integrals.py in doit(self, **hints)
    591                     antideriv = None
    592                 else:
--> 593                     antideriv = self._eval_integral(
    594                         function, xab[0], **eval_kwargs)
    595                     if antideriv is None and meijerg is True:

~\.conda\envs\py37\lib\site-packages\sympy\integrals\integrals.py in _eval_integral(self, f, x, meijerg, risch, manual, heurisch, conds)
   1053                     try:
   1054                         if conds == 'piecewise':
-> 1055                             h = heurisch_wrapper(g, x, hints=[])
   1056                         else:
   1057                             h = heurisch_(g, x, hints=[])

~\.conda\envs\py37\lib\site-packages\sympy\integrals\heurisch.py in heurisch_wrapper(f, x, rewrite, hints, mappings, retries, degree_offset, unnecessary_permutations, _try_heurisch)
    134         return f*x
    135
--> 136     res = heurisch(f, x, rewrite, hints, mappings, retries, degree_offset,
    137                    unnecessary_permutations, _try_heurisch)
    138     if not isinstance(res, Basic):

~\.conda\envs\py37\lib\site-packages\sympy\integrals\heurisch.py in heurisch(f, x, rewrite, hints, mappings, retries, degree_offset, unnecessary_permutations, _try_heurisch)
    724             solution = _integrate()
    725     else:
--> 726         solution = _integrate()
    727
    728     if solution is not None:

~\.conda\envs\py37\lib\site-packages\sympy\integrals\heurisch.py in _integrate(field)
    698
    699         try:
--> 700             find_non_syms(raw_numer)
    701         except PolynomialError:
    702             return None

~\.conda\envs\py37\lib\site-packages\sympy\integrals\heurisch.py in find_non_syms(expr)
    691                 non_syms.add(expr)
    692             elif expr.is_Add or expr.is_Mul or expr.is_Pow:
--> 693                 list(map(find_non_syms, expr.args))
    694             else:
    695                 # TODO: Non-polynomial expression. This should have been

~\.conda\envs\py37\lib\site-packages\sympy\integrals\heurisch.py in find_non_syms(expr)
    691                 non_syms.add(expr)
    692             elif expr.is_Add or expr.is_Mul or expr.is_Pow:
--> 693                 list(map(find_non_syms, expr.args))
    694             else:
    695                 # TODO: Non-polynomial expression. This should have been

~\.conda\envs\py37\lib\site-packages\sympy\integrals\heurisch.py in find_non_syms(expr)
    691                 non_syms.add(expr)
    692             elif expr.is_Add or expr.is_Mul or expr.is_Pow:
--> 693                 list(map(find_non_syms, expr.args))
    694             else:
    695                 # TODO: Non-polynomial expression. This should have been

~\.conda\envs\py37\lib\site-packages\sympy\integrals\heurisch.py in find_non_syms(expr)
    691                 non_syms.add(expr)
    692             elif expr.is_Add or expr.is_Mul or expr.is_Pow:
--> 693                 list(map(find_non_syms, expr.args))
    694             else:
    695                 # TODO: Non-polynomial expression. This should have been

~\.conda\envs\py37\lib\site-packages\sympy\integrals\heurisch.py in find_non_syms(expr)
    691                 non_syms.add(expr)
    692             elif expr.is_Add or expr.is_Mul or expr.is_Pow:
--> 693                 list(map(find_non_syms, expr.args))
    694             else:
    695                 # TODO: Non-polynomial expression. This should have been

~\.conda\envs\py37\lib\site-packages\sympy\integrals\heurisch.py in find_non_syms(expr)
    691                 non_syms.add(expr)
    692             elif expr.is_Add or expr.is_Mul or expr.is_Pow:
--> 693                 list(map(find_non_syms, expr.args))
    694             else:
    695                 # TODO: Non-polynomial expression. This should have been

~\.conda\envs\py37\lib\site-packages\sympy\integrals\heurisch.py in find_non_syms(expr)
    691                 non_syms.add(expr)
    692             elif expr.is_Add or expr.is_Mul or expr.is_Pow:
--> 693                 list(map(find_non_syms, expr.args))
    694             else:
    695                 # TODO: Non-polynomial expression. This should have been

~\.conda\envs\py37\lib\site-packages\sympy\integrals\heurisch.py in find_non_syms(expr)
    688             elif expr in syms:
    689                 pass # ignore variables
--> 690             elif not expr.has(*syms):
    691                 non_syms.add(expr)
    692             elif expr.is_Add or expr.is_Mul or expr.is_Pow:

~\.conda\envs\py37\lib\site-packages\sympy\core\cache.py in wrapper(*args, **kwargs)
     70         def wrapper(*args, **kwargs):
     71             try:
---> 72                 retval = cfunc(*args, **kwargs)
     73             except TypeError:
     74                 retval = func(*args, **kwargs)

~\.conda\envs\py37\lib\site-packages\sympy\core\basic.py in has(self, *patterns)
   1208
   1209         """
-> 1210         return any(self._has(pattern) for pattern in patterns)
   1211
   1212     def _has(self, pattern):

~\.conda\envs\py37\lib\site-packages\sympy\core\basic.py in <genexpr>(.0)
   1208
   1209         """
-> 1210         return any(self._has(pattern) for pattern in patterns)
   1211
   1212     def _has(self, pattern):

~\.conda\envs\py37\lib\site-packages\sympy\core\basic.py in _has(self, pattern)
   1226         if _has_matcher is not None:
   1227             match = _has_matcher()
-> 1228             return any(match(arg) for arg in preorder_traversal(self))
   1229         else:
   1230             return any(arg == pattern for arg in preorder_traversal(self))

~\.conda\envs\py37\lib\site-packages\sympy\core\basic.py in <genexpr>(.0)
   1226         if _has_matcher is not None:
   1227             match = _has_matcher()
-> 1228             return any(match(arg) for arg in preorder_traversal(self))
   1229         else:
   1230             return any(arg == pattern for arg in preorder_traversal(self))

~\.conda\envs\py37\lib\site-packages\sympy\core\basic.py in <lambda>(other)
   1232     def _has_matcher(self):
   1233         """Helper for .has()"""
-> 1234         return lambda other: self == other
   1235
   1236     def replace(self, query, value, map=False, simultaneous=True, exact=None):

~\.conda\envs\py37\lib\site-packages\sympy\core\expr.py in __eq__(self, other)
    137             other = _sympify(other)
    138             if not isinstance(other, Expr):
--> 139                 return False
    140         except (SympifyError, SyntaxError):
    141             return False

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