Chapter07 | Sample for Add Systrace Tag

i am currently try to ramp up bare metal programming using STM32F446 nucleo board. I try to make use of on board temperature sensors and display the value on via UART. i studied the code from http://www.microdigitaled.com/ARM/STM_ARM/Code/Ver1/Chapter07/Program7-2.txt I not really understand timer code,i understand register configuration but i don't get why does it needed in this case, are the timer try to tabulate the sensors value for every one second?

I'm learning about Distributional RL from 'Deep Reinforcement Learning Hands On' code. And there is a method in model class:

I'm getting the following errors

I'm trying to reduce the amount of times the database object is initialized in my data access file (variable database inside the file tree-rxdb.mjs). I created a global variable to hold a reference to the database object and check if it has been initialized before, if it has I just return the variable to the caller without initializing it again. For some reason, the database it's always undefined every time I call this function, even after I have successfully written to the database using the same code. Weirdly, the same doesn't happen to the dao variable inside tree.mjs even though I believe I'm giving it the same treatment but obviously getting differing results. I'm just emulating this code but for some reason it's not working out for the database variable inside tree-rxdb.mjs, what am I not seeing?

tree-rxdb.mjs

Update1:

The code Im referring is exactly the code in the book which you can find it here.

The only thing is that I don't want to have embed_size in the decoder part. That's why I think I don't need to have embedding layer at all because If I put embedding layer, I need to have embed_size in the decoder part(please correct me if Im wrong).

Overall, Im trying to adopt the same code without using the embedding layer, because I need o have vocab_size in the decoder part.

I think the suggestion provided in the comment could be correct (using one_hot_encoding) how ever I faced with this error:

When I did one_hot_encoding:

I have a seq2seq model which is working fine. I want to add an embedding layer in this network which I faced with an error.

this is my architecture using pretrained word embedding which is working fine(Actually the code is almost the same code available here, but I want to include the Embedding layer in the model rather than using the pretrained embedding vectors):

My folder structure

this code is from djagno 2 by example book which is very helpful by the way. the question here is how we managed to modify the request session although we didn't modify it except in save method ((( and it's on the session of the cart which in the first line after init))) what i see is that we have made a copy from the session dictionary at this line
self.session = request.session

I can not reproduce this example although I have changed db name and password.Tree structure