Conditions | 3 |
Total Lines | 22 |
Code Lines | 13 |
Lines | 0 |
Ratio | 0 % |
Changes | 0 |
1 | from typing import Dict |
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7 | def default_complex_deserializer(obj: Dict[str, float], |
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8 | cls: type = complex, |
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9 | **kwargs) -> complex: |
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10 | """ |
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11 | Deserialize a dictionary with 'real' and 'imag' keys to a complex number. |
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12 | :param obj: the dict that is to be deserialized. |
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13 | :param cls: not used. |
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14 | :param kwargs: not used. |
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15 | :return: an instance of ``complex``. |
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16 | """ |
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17 | try: |
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18 | clean_obj = load({'real': obj['real'], 'imag': obj['imag']}, |
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19 | cls=Dict[str, float]) |
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20 | return complex(clean_obj['real'], clean_obj['imag']) |
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21 | except KeyError as err: |
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22 | raise AttributeError("Cannot deserialize {} to a complex number, " |
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23 | "does not contain key '{}'" |
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24 | .format(obj, err.args[0])) |
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25 | except DeserializationError as err: |
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26 | raise AttributeError("Cannot deserialize {} to a complex number, " |
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27 | "cannot cast value {} to float" |
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28 | .format(obj, err.source)) |
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29 |