| @@ -21,7 +21,8 @@ |
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is_datetime64_dtype, is_datetime64tz_dtype, is_datetime_or_timedelta_dtype, |
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is_dtype_equal, is_extension_array_dtype, is_float_dtype, is_integer_dtype, |
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is_list_like, is_object_dtype, is_offsetlike, is_period_dtype, |
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-is_string_dtype, is_timedelta64_dtype, needs_i8_conversion, pandas_dtype) |
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+is_string_dtype, is_timedelta64_dtype, is_unsigned_integer_dtype, |
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+needs_i8_conversion, pandas_dtype) |
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from pandas.core.dtypes.generic import ABCDataFrame, ABCIndexClass, ABCSeries |
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from pandas.core.dtypes.missing import isna |
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| @@ -419,6 +420,11 @@ def astype(self, dtype, copy=True): |
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# we deliberately ignore int32 vs. int64 here. |
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# See https://github.com/pandas-dev/pandas/issues/24381 for more. |
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values = self.asi8 |
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+ |
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+if is_unsigned_integer_dtype(dtype): |
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+# Again, we ignore int32 vs. int64 |
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+values = values.view("uint64") |
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+ |
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if copy: |
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values = values.copy() |
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return values |