| 119 | ) |
| 120 | |
| 121 | def _getitem(self, key): |
| 122 | if self.datastore.is_remote: # pragma: no cover |
| 123 | getitem = functools.partial(robust_getitem, catch=RuntimeError) |
| 124 | else: |
| 125 | getitem = operator.getitem |
| 126 | |
| 127 | try: |
| 128 | with self.datastore.lock: |
| 129 | original_array = self.get_array(needs_lock=False) |
| 130 | array = getitem(original_array, key) |
| 131 | except IndexError as err: |
| 132 | # Catch IndexError in netCDF4 and return a more informative |
| 133 | # error message. This is most often called when an unsorted |
| 134 | # indexer is used before the data is loaded from disk. |
| 135 | msg = ( |
| 136 | "The indexing operation you are attempting to perform " |
| 137 | "is not valid on netCDF4.Variable object. Try loading " |
| 138 | "your data into memory first by calling .load()." |
| 139 | ) |
| 140 | raise IndexError(msg) from err |
| 141 | return array |
| 142 | |
| 143 | |
| 144 | def _encode_nc4_variable(var, name=None): |