pandas KeyError: 你没有名为 <name> 的项目
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KeyError: u'no item named <name>'
提问by user2866103
I have this function which places data into another dataframe.
我有这个功能可以将数据放入另一个数据框中。
def set_var(self,navn,periode,value):
try:
if navn.upper() not in self.data:
self.data[navn.upper()]=NaN
self.data[navn.upper()].ix[periode]=value
except:
print('> fejl ved genmning af:',navn,'i',periode)
print( self.data[navn.upper()])
return
which I then iterate like this, this fill with data:
然后我像这样迭代，这填充了数据：
for idx, val in enumerate(bd):
if val not in ('Navn','Type','Aarstal','Referenceperiode','Registreringsnummer','nummer','navn','navn1','period', 'regnr'):
for row in bd.itertuples():
banker.set_var((str(row[6])+'_'+str(val)),row[60], row[idx+1])
I get the error: KeyError: u'no item named <name of first item I try to insert>'
我收到错误： KeyError: u'no item named <name of first item I try to insert>'
Why is this?
为什么是这样？
回答by nitin
A Key Error is typically because the dict object does not have the key you are requesting. It seems to me that self.data is a dict. If so, you could test your object by using has_key()... like so,
密钥错误通常是因为 dict 对象没有您请求的密钥。在我看来 self.data 是一个字典。如果是这样，您可以使用 has_key() 来测试您的对象...
if self.data.has_key(navn.upper()):
self.data[navn.upper()]=NaN
