Hi Scott,
It looks like your subs call is wrong. It should be fn.subs(x, q0)
Hope this helps.
Sudhanshu Mishra
On Wed, Mar 25, 2015 at 3:06 AM, Scott Guthery <sguth...@gmail.com> wrote:
> Any insight into the following will be greatly appreciated. Many thanks.
>
> from sympy import *
>
> x = symbols('x', integer=True)
>
> def main(fns, q0):
> for fn in fns:
> print(fn)
> print(fn.subs([x,q0]))
>
> if __name__ == '__main__':
> f1=x
> f2=x+2
> main([f1,f2], 3)
>
> yields
>
> x
> Traceback (most recent call last):
> File ".../Subs.py", line 13, in <module>
> main([f1,f2], 3)
> File ".../Subs.py", line 8, in main
> print(fn.subs([x,q0]))
> File "C:\Python34\lib\site-packages\sympy\core\basic.py", line 842, in
> subs
> o, n = sequence[i]
> TypeError: 'Symbol' object is not iterable
>
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