Thread « dictionary « Python Data Type Q&A

1. Using a global dictionary with threads in Python    stackoverflow.com

Is accessing/changing dictionary values thread-safe? I have a global dictionary foo and multiple threads with ids id1, id2, ... , idn. Is it OK to access and change foo's values without allocating ...

2. Python: Thread safe dictionary with short lived keys, is this correct?    stackoverflow.com

import threading
import weakref
_mainlock = threading.RLock()
_job_locks = weakref.WeakValueDictionary()
def do_thing(job_id):
    _mainlock.acquire() #Dictionary modification lock acquire
    _job_locks.setdefault(job_id, threading.RLock()) #Possibly modifies the dictionary
    _mainlock.release()
   ...

3. python dictionary is thread safe?    stackoverflow.com

Some stated that python dictionary is thread safe. Does it mean I can or cannot modified the items in a dictionary while iterating over it?

4. Modifying a Python dictionary from different threads    stackoverflow.com

When it comes to threading, I know you have to make sure you're not editing a variable at the same time another thread is editing it, as your changes can be ...

5. Thread Safety in Python's dictionary    stackoverflow.com

I have a class which holds a dictionary

class OrderBook:
    orders = {'Restaurant1': None,
             'Restaurant2': None,
  ...

6. Python: Iterating over dictionary while another thread modifies dictionary    stackoverflow.com

I have a pyglet window that has a attribute "observer". The observer has a dictionary "dict". In the main_loop() function the window re-draws the window according to the content of observer.dict. ...

7. Different threads accessing the same dictionaries (for read only)    stackoverflow.com

I have a function (myFunc for e.g.) that takes a start and end date & iterates over it and accesses some dictionaries to process the data for this time period. I ...

8. Make thread-safe dictionary    python-forum.org

Hello, I have a class that has a dictionary. A single class instance is shared by different threads, which can all request key-value pairs to be added or removed to this dictionary. Problem is, if two or more threads make such requests at the same time, it could do some horrible things, right? So I'd like to ensure that only one ...