Coverage for /pythoncovmergedfiles/medio/medio/src/airflow/airflow/serialization/serializers/numpy.py: 35%

1# 

2# Licensed to the Apache Software Foundation (ASF) under one 

3# or more contributor license agreements. See the NOTICE file 

4# distributed with this work for additional information 

5# regarding copyright ownership. The ASF licenses this file 

6# to you under the Apache License, Version 2.0 (the 

7# "License"); you may not use this file except in compliance 

8# with the License. You may obtain a copy of the License at 

9# 

10# http://www.apache.org/licenses/LICENSE-2.0 

11# 

12# Unless required by applicable law or agreed to in writing, 

13# software distributed under the License is distributed on an 

14# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 

15# KIND, either express or implied. See the License for the 

16# specific language governing permissions and limitations 

17# under the License. 

18from __future__ import annotations 

19 

20from typing import TYPE_CHECKING, Any 

21 

22from airflow.utils.module_loading import import_string, qualname 

23 

24# lazy loading for performance reasons 

25serializers = [ 

26 "numpy.int8", 

27 "numpy.int16", 

28 "numpy.int32", 

29 "numpy.int64", 

30 "numpy.uint8", 

31 "numpy.uint16", 

32 "numpy.uint32", 

33 "numpy.uint64", 

34 "numpy.bool_", 

35 "numpy.float64", 

36 "numpy.float16", 

37 "numpy.complex128", 

38 "numpy.complex64", 

39] 

40 

41if TYPE_CHECKING: 

42 from airflow.serialization.serde import U 

43 

44deserializers = serializers 

45 

46__version__ = 1 

47 

48 

49def serialize(o: object) -> tuple[U, str, int, bool]: 

50 import numpy as np 

51 

52 if np is None: 

53 return "", "", 0, False 

54 

55 name = qualname(o) 

56 if isinstance( 

57 o, 

58 ( 

59 np.int_, 

60 np.intc, 

61 np.intp, 

62 np.int8, 

63 np.int16, 

64 np.int32, 

65 np.int64, 

66 np.uint8, 

67 np.uint16, 

68 np.uint32, 

69 np.uint64, 

70 ), 

71 ): 

72 return int(o), name, __version__, True 

73 

74 if isinstance(o, np.bool_): 

75 return bool(np), name, __version__, True 

76 

77 if isinstance( 

78 o, (np.float_, np.float16, np.float32, np.float64, np.complex_, np.complex64, np.complex128) 

79 ): 

80 return float(o), name, __version__, True 

81 

82 return "", "", 0, False 

83 

84 

85def deserialize(classname: str, version: int, data: str) -> Any: 

86 if version > __version__: 

87 raise TypeError("serialized version is newer than class version") 

88 

89 if classname not in deserializers: 

90 raise TypeError(f"unsupported {classname} found for numpy deserialization") 

91 

92 return import_string(classname)(data)