Created
August 25, 2021 13:55
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Get memory requirement for a variable
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| import sys | |
| from types import ModuleType, FunctionType | |
| from gc import get_referents | |
| # Custom objects know their class. | |
| # Function objects seem to know way too much, including modules. | |
| # Exclude modules as well. | |
| BLACKLIST = type, ModuleType, FunctionType | |
| def getsize(obj): | |
| """sum size of object & members.""" | |
| if isinstance(obj, BLACKLIST): | |
| raise TypeError('getsize() does not take argument of type: '+ str(type(obj))) | |
| seen_ids = set() | |
| size = 0 | |
| objects = [obj] | |
| while objects: | |
| need_referents = [] | |
| for obj in objects: | |
| if not isinstance(obj, BLACKLIST) and id(obj) not in seen_ids: | |
| seen_ids.add(id(obj)) | |
| size += sys.getsizeof(obj) | |
| need_referents.append(obj) | |
| objects = get_referents(*need_referents) | |
| return size |
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