DataFrame Encuentra filas nan
df[df.isnull().any(axis=1)]
Selfish Swiftlet
df[df.isnull().any(axis=1)]
df.isnull().values.any()
df['your column name'].isnull().sum()
df['your column name'].isnull()
df.Temp_Rating.fillna(df.Farheit, inplace=True)
del df['Farheit']
df.columns = 'File heat Observations'.split()