在这段代码中,尝试访问 data 字典中的 'date' 键会引发 KeyError。 2. 确认字典中是否应该包含键 'date' 你需要确认根据程序的逻辑,data 字典中是否应该包含 'date' 键。如果应该包含,那么你需要调查为什么 'date' 键没有出现在字典中。如果不应该包含,你需要修改代码以避免访问不存在的键。
一开始它是有效的,但过了一段时间它就变成:"KeyError:"Date"“ import bs4 as bsimport osimport pandas_datareader.data as webimport requests def save_sp500_tickers(然后KeyError:"Date“就会出现。 浏览499提问于2019-04-22得票数 0 2回答 错误"KeyError: date“坚持认为CSV文件是UTF-8编码的并且它的...
问无法删除日期列KeyError："[' Date ']在轴中找不到EN因近日一个项目中要在客户端判断用户输入的日...
# 冗余示例,仅用于展示字典推导式的使用 value = my_dict['date'] if 'date' in my_dict else 'Not Found' # 更推荐的方式是使用get()方法,如上所示 print(value) # 输出:Not Found 使用try-except语句捕获异常:如果你不确定字典中是否存在某个键,可以使用try-except语句来捕获KeyError异常。这样,即使键...
ax = df.plot(x="date", y="count", kind="bar") df.plot(x="date", y="source", kind="bar", ax=ax) plt.savefig("static/images/image.png") la_bar() 我得到的密钥错误如下, raise KeyError(key) KeyError: 'date' 如有任何建议,我们将不胜感激 ...
names=['date', 'description', 'price'], dayfirst=True, parse_dates=True) keys = ['Green', 'Blue'] df['category'] = '' # with for loop for index in df.index: if any(key in df.loc[index, 'description'] for key in keys): ...
~~~^^^KeyError: 'DateObserved' === Logger: homeassistant.components.sensor Source: helpers/entity_platform.py:599 integration: Sensor ([documentation](https://www.home-assistant.io/integrations/sensor), [issues](https://github.com/home-assistant/core/issues?q=is%3Aissue+is%3Aopen+label%3A...
Describe the bug I'm trying to clone a dashboard. I've cloned other dashboards before without this happening. It's very basic dashboard with one map and a gauge and date picker. It's just for testing. It's published and has an id and wor...
KeyError: 'DATE OF OCCURRENCE' I'm trying to change column or deal with columns and I'm getting some keyError error. Working on chicago crime data analysis. For example when i'm trying to run ds["DATE OF OCCURRENCE"] = pd.to_datetime([ds["DATE OF OCCURRENCE"]], format="%m/%d/%Y...
问如何在pandas中修复"KeyError："Date"“EN分析人员重命名列名称的动机之一是确保这些列名称是有效的...