Normally, the generate or db push commands generate and store the client. If these commands are not helping, the most possible reason is that the client is using some other generator provider. In your case, since the desired usage is with python, the generator provider must be prisma-client-py. If it is something else (ex: prisma-client-js), "generate" command will run smooth, and says that the client has been generated, but it will be generated for js and will be stored in node_modules. And python wont even detect it.

The fix is pretty straight forward.

In schema.prisma, change

generator client {
  provider = "prisma-client-js"
}

to

generator client {
  provider = "prisma-client-py"
}

and run prisma generate again.

Since datetime.utcfromtimestamp() has been deprecated, this worked for me datetime.combine(date.today(), datetime.min.time()).isoformat() + 'Z'