TypeError: bad operand type for unary ~: 'float'

Question

I have a weird looking dataframe that I need to wrangle. It looks something like this:

   Unnamed: 0       REFERENCE_CODE  ... Unnamed: 12  Unnamed: 13
0            


        

Answer 1

You can fillna first:

~df.REFERENCE_CODE.fillna('').str.isnumeric()

---

Example:

In [11]: s = pd.Series(['1', np.nan, 'c'])

In [12]: s
Out[12]:
0      1
1    NaN
2      c
dtype: object

In [13]: s.str.isnumeric()
Out[13]:
0     True
1      NaN
2    False
dtype: object

In [14]: ~s.str.isnumeric()
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-14-2e51f8bd1622> in <module>()
----> 1 ~s.str.isnumeric()

~/.miniconda3/lib/python3.7/site-packages/pandas/core/generic.py in __invert__(self)
   1141     def __invert__(self):
   1142         try:
-> 1143             arr = operator.inv(com._values_from_object(self))
   1144             return self.__array_wrap__(arr)
   1145         except Exception:

TypeError: bad operand type for unary ~: 'float'

In [15]: ~s.fillna('').str.isnumeric()
Out[15]:
0    False
1     True
2     True
dtype: bool