Ich versuche, alle Zeilen aus dem Datenrahmen contributors
zu bekommen, wo Besatzung im Ruhestand ist, etwa so:Pandas - Auswählen von Zeilen in einem Datenrahmen mit String Gleichheit
mask = (contributors.contbr_occupation.str == 'RETIRED')
print(contributors[mask])
Allerdings hat ich die folgenden Stack-Trace erhalten:
Traceback (most recent call last):
File "C:\Users\Me\Anaconda3\envs\pandas\lib\site-packages\pandas\indexes\base.py", line 2134, in get_loc
return self._engine.get_loc(key)
File "pandas\index.pyx", line 132, in pandas.index.IndexEngine.get_loc (pandas\index.c:4433)
File "pandas\index.pyx", line 154, in pandas.index.IndexEngine.get_loc (pandas\index.c:4279)
File "pandas\src\hashtable_class_helper.pxi", line 732, in pandas.hashtable.PyObjectHashTable.get_item (pandas\hashtable.c:13742)
File "pandas\src\hashtable_class_helper.pxi", line 740, in pandas.hashtable.PyObjectHashTable.get_item (pandas\hashtable.c:13696)
KeyError: False
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "census_attack.py", line 27, in <module>
print(contributors[mask])
File "C:\Users\Me\Anaconda3\envs\pandas\lib\site-packages\pandas\core\frame.py", line 2059, in __getitem__
return self._getitem_column(key)
File "C:\Users\Me\Anaconda3\envs\pandas\lib\site-packages\pandas\core\frame.py", line 2066, in _getitem_column
return self._get_item_cache(key)
File "C:\Users\Me\Anaconda3\envs\pandas\lib\site-packages\pandas\core\generic.py", line 1386, in _get_item_cache
values = self._data.get(item)
File "C:\Users\Me\Anaconda3\envs\pandas\lib\site-packages\pandas\core\internals.py", line 3543, in get
loc = self.items.get_loc(item)
File "C:\Users\Me\Anaconda3\envs\pandas\lib\site-packages\pandas\indexes\base.py", line 2136, in get_loc
return self._engine.get_loc(self._maybe_cast_indexer(key))
File "pandas\index.pyx", line 132, in pandas.index.IndexEngine.get_loc (pandas\index.c:4433)
File "pandas\index.pyx", line 154, in pandas.index.IndexEngine.get_loc (pandas\index.c:4279)
File "pandas\src\hashtable_class_helper.pxi", line 732, in pandas.hashtable.PyObjectHashTable.get_item (pandas\hashtable.c:13742)
File "pandas\src\hashtable_class_helper.pxi", line 740, in pandas.hashtable.PyObjectHashTable.get_item (pandas\hashtable.c:13696)
KeyError: False
Wie kann ich das tun?
Ja, wenn sich die Dinge beruhigen, kann ich wieder in einen Rhythmus kommen. – piRSquared