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|
| import contextlib |
| import copy |
| import threading |
|
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| _threadlocal_scope = threading.local() |
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|
| @contextlib.contextmanager |
| def arg_scope(single_helper_or_list, **kwargs): |
| global _threadlocal_scope |
| if not isinstance(single_helper_or_list, list): |
| assert callable(single_helper_or_list), \ |
| "arg_scope is only supporting single or a list of helper functions." |
| single_helper_or_list = [single_helper_or_list] |
| old_scope = copy.deepcopy(get_current_scope()) |
| for helper in single_helper_or_list: |
| assert callable(helper), \ |
| "arg_scope is only supporting a list of callable helper functions." |
| helper_key = helper.__name__ |
| if helper_key not in old_scope: |
| _threadlocal_scope.current_scope[helper_key] = {} |
| _threadlocal_scope.current_scope[helper_key].update(kwargs) |
|
|
| yield |
| _threadlocal_scope.current_scope = old_scope |
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|
|
| def get_current_scope(): |
| global _threadlocal_scope |
| if not hasattr(_threadlocal_scope, "current_scope"): |
| _threadlocal_scope.current_scope = {} |
| return _threadlocal_scope.current_scope |
|
|
