Status: Valid
Owner: ----
Labels: Type-Defect Priority-Medium EasyToFix
New issue 3531 by [email protected]: IndexedBase does not sympify its
arguments
http://code.google.com/p/sympy/issues/detail?id=3531
From the mailing list:
In [1]: L = IndexedBase('L')
In [2]: a,b = map(Idx,['a','b'])
In [3]: exp = 2*L[a,b]
In [5]: p,q = map(Wild,['p','q'])
exp = exp.replace(L[p,q],p)
In [6]: exp
Out[6]: 2⋅a
In [7]: exp = 2*L[1,0]
In [8]: exp.replace(L[p,q],p)
---------------------------------------------------------------------------
AttributeError Traceback (most recent call last)
<ipython-input-8-d0da40415cd4> in <module>()
----> 1 exp.replace(L[p,q],p)
/Users/aaronmeurer/Documents/Python/sympy/sympy/sympy/core/basic.pyc in
replace(self, query, value, map)
1246 return None
1247
-> 1248 result = rec_replace(self)
1249
1250 if result is None:
/Users/aaronmeurer/Documents/Python/sympy/sympy/sympy/core/basic.pyc in
rec_replace(expr)
1222
1223 for arg in expr.args:
-> 1224 result = rec_replace(arg)
1225
1226 if result is not None:
/Users/aaronmeurer/Documents/Python/sympy/sympy/sympy/core/basic.pyc in
rec_replace(expr)
1222
1223 for arg in expr.args:
-> 1224 result = rec_replace(arg)
1225
1226 if result is not None:
/Users/aaronmeurer/Documents/Python/sympy/sympy/sympy/core/basic.pyc in
rec_replace(expr)
1221 args, construct = [], False
1222
-> 1223 for arg in expr.args:
1224 result = rec_replace(arg)
1225
AttributeError: 'int' object has no attribute 'args'
In [9]: exp = 2*L[S(1),S(0)]
In [10]: exp.replace(L[p,q],p)
Out[10]: 2
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