BUG: Series[int].__setitem__(mask, td64_or_dt64) incorrect casting #39619
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jreback
approved these changes
Feb 7, 2021
| # https://github.com/numpy/numpy/issues/12550 | ||
| # timedelta64 will incorrectly cast to int | ||
| converted = [converted] * mask.sum() | ||
| values[mask] = converted | ||
| if not is_list_like(converted): |
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this pattern is pretty common, maybe a helper function?
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yah one more PR coming up that uses this pattern yet again; i think its going to end up in array_algos.putmask,
| # expressions.where will cast np.timedelta64 to int | ||
| result = self.values.copy() | ||
| result[~cond] = [other] * (~cond).sum() | ||
| dtype, _ = infer_dtype_from(other, pandas_dtype=True) |
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