Type Error : NoneType is not subscriptable

Question

for i in Leads.columns:
    if (Leads[i].isnull().sum()/Leads.shape[0]) > 0.40:
        Leads = Leads.drop(i,axis=1,inplace = True)

---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
~\AppData\Local\Temp/ipykernel_17092/1952428833.py in <module>
      2 
      3 for i in Leads.columns:
----> 4     if (Leads[i].isnull().sum()/Leads.shape[0]) > 0.40:
      5         Leads = Leads.drop(i,axis=1,inplace = True)

TypeError: 'NoneType' object is not subscriptable

for i in Leads.columns:
    if (Leads[i].isnull().sum()/Leads.shape[0]) > 0.40:
        Leads = Leads.drop(i,axis=1,inplace = True)

I was expecting the columns having more than 40% missing values to be dropped

Please clarify your specific problem or provide additional details to highlight exactly what you need. As it's currently written, it's hard to tell exactly what you're asking. — Community, Dec 26 '22 at 11:44

score 0 · Accepted Answer · answered Dec 26 '22 at 11:24

inplace parameter makes the modificaiton on the called object, and returns nothing

Either remove the assignment

for i in Leads.columns:
    if (Leads[i].isnull().sum() / Leads.shape[0]) > 0.40:
        Leads.drop(i, axis=1, inplace=True)

Or remove the inplace

for i in Leads.columns:
    if (Leads[i].isnull().sum() / Leads.shape[0]) > 0.40:
        Leads = Leads.drop(i, axis=1)

Type Error : NoneType is not subscriptable

1 Answers1