Traceback (most recent call last):


 "test.py", line 40, in <module>

print(integrate(1 / (1 + x**4)**(S(1)/4), [x, 0, oo]))


 "/home/eward/se/sympy/integrals/integrals.py", line 1522, in integrate

return integral.doit(**doit_flags)


 "/home/eward/se/sympy/integrals/integrals.py", line 669, in doit

evalued = Add(*others)._eval_interval(x, a, b)


 "/home/eward/se/sympy/core/expr.py", line 964, in _eval_interval

B = _eval_endpoint(left=False)


 "/home/eward/se/sympy/core/expr.py", line 949, in _eval_endpoint

C = limit(self, x, c, "+" if left else "-")


 "/home/eward/se/sympy/series/limits.py", line 71, in limit

return Limit(e, z, z0, dir).doit(deep=False)


 "/home/eward/se/sympy/series/limits.py", line 261, in doit

r = gruntz(e, z, z0, dir)


 "/home/eward/se/sympy/series/gruntz.py", line 671, in gruntz

r = limitinf(e0, z)


 "/home/eward/se/sympy/core/cache.py", line 94, in wrapper

retval = cfunc(*args, **kwargs)


 "/home/eward/se/sympy/series/gruntz.py", line 435, in limitinf

c0, e0 = mrv_leadterm(e, x)


 "/home/eward/se/sympy/core/cache.py", line 94, in wrapper

retval = cfunc(*args, **kwargs)


 "/home/eward/se/sympy/series/gruntz.py", line 524, in mrv_leadterm

series = calculate_series(f, w, logx=logw)


 "/home/eward/se/sympy/series/gruntz.py", line 477, in calculate_series

for t in e.lseries(x, logx=logx):


 "/home/eward/se/sympy/core/expr.py", line 2924, in yield_lseries

for si in s:


 "/home/eward/se/sympy/core/expr.py", line 3136, in _eval_lseries

series = self._eval_nseries(x, n=n, logx=logx)


 "/home/eward/se/sympy/core/mul.py", line 1749, in _eval_nseries

terms = [t.nseries(x, n=n, logx=logx) for t in self.args]


 "/home/eward/se/sympy/core/mul.py", line 1749, in <listcomp>

terms = [t.nseries(x, n=n, logx=logx) for t in self.args]


 "/home/eward/se/sympy/core/expr.py", line 3223, in nseries

return self._eval_nseries(x, n=n, logx=logx)


 "/home/eward/se/sympy/core/function.py", line 673, in _eval_nseries

a = [t.compute_leading_term(x, logx=logx) for t in args]


 "/home/eward/se/sympy/core/function.py", line 673, in <listcomp>

a = [t.compute_leading_term(x, logx=logx) for t in args]
AttributeError: 'TupleArg' object has no attribute 'compute_leading_term'

Traceback (most recent call last):


 "<stdin>", line 1, in <module>


 "<decorator-gen-406>", line 2, in write_pajek


 "/usr/lib/python3.6/site-packages/networkx/utils/decorators.py", line 227, in _open_file

result = func_to_be_decorated(*new_args, **kwargs)


 "/usr/lib/python3.6/site-packages/networkx/readwrite/pajek.py", line 107, in write_pajek

for line in generate_pajek(G):


 "/usr/lib/python3.6/site-packages/networkx/readwrite/pajek.py", line 66, in generate_pajek

if v.strip() != '':
AttributeError: 'float' object has no attribute 'strip'