BPO | [30256](https://bugs.python.org/issue30256) --- | :--- Nosy | @gvanrossum, @mjpieters, @pitrou, @hniksic, @applio, @zhangyangyu, @miss-islington, @finefoot, @Ralithune, @iritkatriel, @Fidget-Spinner PRs | python/cpython#4819python/cpython#16341python/cpython#26987python/cpython#26988python/cpython#26989python/cpython#26994python/cpython#26996python/cpython#26998 *Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.* Show more details GitHub fields: ```python assignee = None closed_at = created_at = labels = ['type-bug', 'library', '3.9', '3.10', '3.11'] title = 'Adding a SyncManager Queue proxy to a SyncManager dict or Namespace proxy raises an exception' updated_at = user = 'https://bugs.python.org/jjdmon' ``` bugs.python.org fields: ```python activity = actor = 'kj' assignee = 'none' closed = True closed_date = closer = 'gvanrossum' components = ['Library (Lib)'] creation = creator = 'jjdmon' dependencies = [] files = [] hgrepos = [] issue_num = 30256 keywords = ['patch'] message_count = 19.0 messages = ['292889', '311592', '311594', '346334', '352960', '361034', '376584', '396839', '396842', '396843', '396844', '396845', '396846', '396869', '396871', '396872', '396873', '398828', '398829'] nosy_count = 15.0 nosy_names = ['gvanrossum', 'mjpieters', 'pitrou', 'hniksic', 'davin', 'xiang.zhang', 'jjdmon', 'Alexander Prokhorov', 'miss-islington', 'finefoot', 'Locane', 'Philipp Rehs', 'iritkatriel', 'kj', 'stephen.entropy'] pr_nums = ['4819', '16341', '26987', '26988', '26989', '26994', '26996', '26998'] priority = 'normal' resolution = 'fixed' stage = 'resolved' status = 'closed' superseder = None type = 'behavior' url = 'https://bugs.python.org/issue30256' versions = ['Python 3.9', 'Python 3.10', 'Python 3.11'] ```