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뉴버전 보고있는데               Close    Open    High     Low      Volume  Change Date                                                           2019-04-22  204.53  202.83  204.94  202.34  19440000.0  0.0033 2019-04-23  207.48  204.43  207.75  203.90  23320000.0  0.0144 2019-04-24  207.16  207.36  208.48  207.05  17540000.0 -0.0015 2019-04-25  205.28  206.83  207.76  205.12  18540000.0 -0.0091 2019-04-26  204.30  204.90  205.00  202.12  18650000.0 -0.0048 2019-04-29  204.61  204.40  205.97  203.86  22200000.0  0.0015 2019-04-30  209.95  202.69  209.95  199.17   1730000.0  0.0261 Traceback (most recent call last):   File "pandas/_libs/index.pyx", line 457, in pandas._libs.index.DatetimeEngine.get_loc   File "pandas/_libs/hashtable_class_helper.pxi", line 811, in pandas._libs.hashtable.Int64HashTable.get_item TypeError: an integer is required   During handling of the above exception, another exception occurred:   Traceback (most recent call last):   File "/Users/hyeonseongjun/anaconda3/lib/python3.6/site-packages/pandas/core/indexes/base.py", line 2525, in get_loc     return self._engine.get_loc(key)   File "pandas/_libs/index.pyx", line 421, in pandas._libs.index.DatetimeEngine.get_loc   File "pandas/_libs/index.pyx", line 459, in pandas._libs.index.DatetimeEngine.get_loc   File "pandas/_libs/index.pyx", line 465, in pandas._libs.index.DatetimeEngine._date_check_type KeyError: '2016-02-25'   During handling of the above exception, another exception occurred:   Traceback (most recent call last):   File "pandas/_libs/index.pyx", line 457, in pandas._libs.index.DatetimeEngine.get_loc   File "pandas/_libs/hashtable_class_helper.pxi", line 811, in pandas._libs.hashtable.Int64HashTable.get_item TypeError: an integer is required   During handling of the above exception, another exception occurred:   Traceback (most recent call last):   File "/Users/hyeonseongjun/anaconda3/lib/python3.6/site-packages/pandas/core/indexes/datetimes.py", line 1435, in get_loc     return Index.get_loc(self, key, method, tolerance)   File "/Users/hyeonseongjun/anaconda3/lib/python3.6/site-packages/pandas/core/indexes/base.py", line 2527, in get_loc     return self._engine.get_loc(self._maybe_cast_indexer(key))   File "pandas/_libs/index.pyx", line 421, in pandas._libs.index.DatetimeEngine.get_loc   File "pandas/_libs/index.pyx", line 459, in pandas._libs.index.DatetimeEngine.get_loc   File "pandas/_libs/index.pyx", line 465, in pandas._libs.index.DatetimeEngine._date_check_type KeyError: '2016-02-25'   During handling of the above exception, another exception occurred:   Traceback (most recent call last):   File "pandas/_libs/index.pyx", line 449, in pandas._libs.index.DatetimeEngine.get_loc   File "pandas/_libs/hashtable_class_helper.pxi", line 811, in pandas._libs.hashtable.Int64HashTable.get_item   File "pandas/_libs/hashtable_class_helper.pxi", line 817, in pandas._libs.hashtable.Int64HashTable.get_item KeyError: 1456358400000000000   During handling of the above exception, another exception occurred:   Traceback (most recent call last):   File "/Users/hyeonseongjun/anaconda3/lib/python3.6/site-packages/pandas/core/indexes/base.py", line 2525, in get_loc     return self._engine.get_loc(key)   File "pandas/_libs/index.pyx", line 421, in pandas._libs.index.DatetimeEngine.get_loc   File "pandas/_libs/index.pyx", line 451, in pandas._libs.index.DatetimeEngine.get_loc KeyError: Timestamp('2016-02-25 00:00:00')   During handling of the above exception, another exception occurred:   Traceback (most recent call last):   File "pandas/_libs/index.pyx", line 449, in pandas._libs.index.DatetimeEngine.get_loc   File "pandas/_libs/hashtable_class_helper.pxi", line 811, in pandas._libs.hashtable.Int64HashTable.get_item   File "pandas/_libs/hashtable_class_helper.pxi", line 817, in pandas._libs.hashtable.Int64HashTable.get_item KeyError: 1456358400000000000   During handling of the above exception, another exception occurred:   Traceback (most recent call last):   File "/Users/hyeonseongjun/anaconda3/lib/python3.6/site-packages/pandas/core/indexes/datetimes.py", line 1444, in get_loc     return Index.get_loc(self, stamp, method, tolerance)   File "/Users/hyeonseongjun/anaconda3/lib/python3.6/site-packages/pandas/core/indexes/base.py", line 2527, in get_loc     return self._engine.get_loc(self._maybe_cast_indexer(key))   File "pandas/_libs/index.pyx", line 421, in pandas._libs.index.DatetimeEngine.get_loc   File "pandas/_libs/index.pyx", line 451, in pandas._libs.index.DatetimeEngine.get_loc KeyError: Timestamp('2016-02-25 00:00:00')   During handling of the above exception, another exception occurred:   Traceback (most recent call last):   File "/Users/hyeonseongjun/Desktop/inflearn/section2/test/bnmva23-1/download4-7-3.py", line 24, in <module>     print(df_app.ix['2016-02-25'])   File "/Users/hyeonseongjun/anaconda3/lib/python3.6/site-packages/pandas/core/indexing.py", line 127, in __getitem__     return self._getitem_axis(key, axis=axis)   File "/Users/hyeonseongjun/anaconda3/lib/python3.6/site-packages/pandas/core/indexing.py", line 1108, in _getitem_axis     return self._get_label(key, axis=axis)   File "/Users/hyeonseongjun/anaconda3/lib/python3.6/site-packages/pandas/core/indexing.py", line 145, in _get_label     return self.obj._xs(label, axis=axis)   File "/Users/hyeonseongjun/anaconda3/lib/python3.6/site-packages/pandas/core/generic.py", line 2344, in xs     loc = self.index.get_loc(key)   File "/Users/hyeonseongjun/anaconda3/lib/python3.6/site-packages/pandas/core/indexes/datetimes.py", line 1446, in get_loc     raise KeyError(key) KeyError: '2016-02-25' 에러메세지인데요 혹시나 해서 복붙해봤는데 역시나 마찬가지입니다

ubih1un4679 · Answer

감사합니다 조만간 확인해볼게요!

niceman · Answer

안녕하세요.   현재 해당 예제파일 실행한 결과 정상적으로 실행됩니다.   https://github.com/eunki7/python_create_app_1/blob/master/section4/4-7-3_new_1.py   실행 파일이름이 예전 파일 이름 같습니다.   위에 수정된 버전인 새로운 예제 확인해보시고요.   아래 처럼 새로나온 패키지가 설치되어 있는지 확인 해보세요.   pip install -U finance-datareader   새로운 패키지에대한 사이트 입니다.   https://financedata.github.io/posts/finance-data-reader-users-guide.html