How to avoid `can't multiply sequence by non-int of type 'float'`

I got two dict self.theta & self.beta and a fp value eta, when I tried to modify it as below:


It returned TypeError: can't multiply sequence by non-int of type 'float'.
If I put it into a for loop of the dict, it worked, but I cannot separately manipulate with a single key such as [0] above, have to finish the modification in the for loop in this case.

for key in self.theta.items(): 

I wonder is it possible to directly modify the self.theta[0] without getting the error? The numpy array seems like a workaround but I need to change the code a lot so I am thinking about solely torch methods.

This doesn’t seem to be a PyTorch-specific issue, but seems to be raised by Python directly.
Could you post the content of both dicts and explain the use case a bit?

Thank you for your reply, you are totally right and I solve it with some help from stackoverflow. Specifically, I messed up the index of self.theta which makes me do eta * [] so it raised the error.
Sorry for the ‘unrelated’ post.