Does thread-local mean thread safe?

Specifically I'm talking about Python. I'm trying to hack something (just a little) by seeing an object's value without ever passing it in, and I'm wondering if it is thread safe to use thread local to do that. Al开发者_JS百科so, how do you even go about doing such a thing?

No -- thread local means that each thread gets its own copy of that variable. Using it is (at least normally) thread-safe, simply because each thread uses its own variable, separate from variables by the same name that's accessible to other threads. OTOH, they're not (normally) useful for communication between threads.