已解决:(pandas读取DataFrame列报错)raiseKeyError(key) from err KeyError: (‘name‘, ‘age‘) 一、分析问题背景 在使用pandas库处理数据时,我们经常会遇到需要读取DataFrame中特定列的情况。然而,有时在尝试访问某些列时会触发KeyError异常,这通常发生在尝试访问DataFrame中不存在的列时。本文将针对一个具体的报错...
在Pandas中,KeyError是一个常见的异常,通常发生在尝试访问DataFrame或Series中不存在的键(列名或索引标签)时。下面我将按照你的提示,逐一解答你的问题: 1. 理解KeyError在Pandas中的含义 KeyError在Pandas中意味着你尝试访问DataFrame或Series中不存在的键(列名或索引标签)。例如,如果你试图通过列名访问DataFrame中的一列...
File "C:\Users\yj\Anaconda3\lib\site-packages\pandas\core\frame.py", line 2906, in __getitem__ indexer = self.columns.get_loc(key) File "C:\Users\yj\Anaconda3\lib\site-packages\pandas\core\indexes\base.py", line 2900, in get_loc raise KeyError(key) from err KeyError: 'sex' >>...
df1 = pd.DataFrame(lst, columns=['source','type','date','count']) #lst is a data set 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 KeyEr...
pycaret version checks I have checked that this issue has not already been reported here. I have confirmed this bug exists on the latest version of pycaret. I have confirmed this bug exists on the master branch of pycaret (pip install -U...
inserted_primary_key[0] return ScheduleTick(tick_id, schedule_tick_data) except db.exc.IntegrityError as exc: six.raise_from( DagsterInvariantViolationError( 'Unable to insert ScheduleTick for schedule {schedule_name} in storage'.format( schedule_name=schedule_tick_data.schedule_name, ) ), exc...
已解决:(pandas读取DataFrame列报错)raise KeyError(key) from err KeyError: (‘name‘, ‘age‘) 一、分析问题背景 在使用pandas库处理数据时,我们经常会遇到需要读取DataFrame中特定列的情况。然而,有时在尝试访问某些列时会触发KeyError异常,这通常发生在尝试访问DataFrame中不存在的列时。本文... 文章...