Status: Accepted
Owner: asmeurer
CC: smichr
Labels: Type-Defect Priority-Medium
New issue 1864 by asmeurer: AttributeError: is_commutative with Mul(Pow(2,
2, evaluate=False), 3, evaluate=False) + 1
http://code.google.com/p/sympy/issues/detail?id=1864
Mul(Pow(2, 2, evaluate=False), 3, evaluate=False) + 1
Traceback (most recent call last):
File "<console>", line 1, in <module>
File "./sympy/core/decorators.py", line 106, in __sympifyit_wrapper
return func(a, b)
File "./sympy/core/basic.py", line 697, in __add__
return Add(self, other)
File "./sympy/core/cache.py", line 85, in wrapper
func_cache_it_cache[k] = r = func(*args, **kw_args)
File "./sympy/core/operations.py", line 31, in __new__
c_part, nc_part, order_symbols = cls.flatten(map(_sympify, args))
File "./sympy/core/add.py", line 111, in flatten
noncommutative = noncommutative or not s.is_commutative
AttributeError: is_commutative
This is for example returned by factorint(12, visual=True) + 1.
factor() now uses evaulate=False to get around issue 1497, so this can also
show up with relation to
that.
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