filter dataframe rows based on length of column values

Question

I have a pandas dataframe as follows:

df = pd.DataFrame([ [1,2], [np.NaN,1], [\'test string1\', 5]], columns=[\'A\',\'B\'] )

df
              A  B
0                 


        

Answer 1

If based on column A

In [865]: df[~(df.A.str.len() > 10)]
Out[865]:
     A  B
0    1  2
1  NaN  1

If based on all columns

In [866]: df[~df.applymap(lambda x: len(str(x)) > 10).any(axis=1)]
Out[866]:
     A  B
0    1  2
1  NaN  1