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Description
Bug report
Related: huggingface/transformers#8978
import collections
import copy
import dataclasses
@dataclasses.dataclass
class ModelOutputDictBase(dict):
a: int
b: int = 2
# works
copy.deepcopy(
ModelOutputDictBase(
a=1,
b=2,
)
)
@dataclasses.dataclass
class ModelOutputAllDefaults(collections.OrderedDict):
a: int = 1
b: int = 2
# works
copy.deepcopy(
ModelOutputAllDefaults(
a=1,
b=2,
)
)
@dataclasses.dataclass
class ModelOutput(collections.OrderedDict):
a: int
b: int = 2
# fails
copy.deepcopy(
ModelOutput(
a=1,
b=2,
)
)---------------------------------------------------------------------------
TypeError Traceback (most recent call last)
Cell In[4], line 39
35 a: int
36 b: int = 2
---> 39 copy.deepcopy(
40 ModelOutput(
41 a=1,
42 b=2,
43 )
44 )
File [...lib/python3.8/copy.py:172), in deepcopy(x, memo, _nil)
170 y = x
171 else:
--> 172 y = _reconstruct(x, memo, *rv)
174 # If is its own copy, don't memoize.
175 if y is not x:
File [.../lib/python3.8/copy.py:264), in _reconstruct(x, memo, func, args, state, listiter, dictiter, deepcopy)
262 if deep and args:
263 args = (deepcopy(arg, memo) for arg in args)
--> 264 y = func(*args)
265 if deep:
266 memo[id(x)] = y
TypeError: __init__() missing 1 required positional argument: 'a'Your environment
- CPython versions tested on: Python 3.8.16 (default, Jan 17 2023, 23:13:24) [GCC 11.2.0] :: Anaconda, Inc. on linux
- Operating system and architecture: Ubuntu 20.04.6 LTS x86_64