How to multiply dictionary values with other values based on the dictionary's key?
Steven D'Aprano
steve+comp.lang.python at pearwood.info
Sun Aug 19 07:39:01 EDT 2018
On Sun, 19 Aug 2018 03:15:32 -0700, giannis.dafnomilis wrote:
> Thank you MRAB!
>
> Now I can get the corresponding dictionary value A[i,j,k,l] for each key
> in the varsdict dictionary.
>
> However how would I go about multiplying the value of each
> FEq_(i,_j,_k,_l) key with the A[i,j,k,l] one? Do you have any insight in
> that?
Do you want to modify the varsdict values in place?
varsdict['Feq_(i,_j,_k,_l)'] *= A[i,j,k,l]
which is a short-cut for this slightly longer version:
temp = varsdict['Feq_(i,_j,_k,_l)'] * A[i,j,k,l]
varsdict['Feq_(i,_j,_k,_l)'] = temp
If you want to leave the original in place and do something else with the
result:
result = varsdict['Feq_(i,_j,_k,_l)'] * A[i,j,k,l]
print(result)
--
Steven D'Aprano
"Ever since I learned about confirmation bias, I've been seeing
it everywhere." -- Jon Ronson
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