how to select nan in pandas code example

Example 1: dataframe find nan rows

df[df.isnull().any(axis=1)]

Example 2: find nan values in a column pandas

df.isnull().values.any()

Example 3: select rows with nan pandas

df[df['Col2'].isnull()]

Example 4: pandas nan values in column

df['your column name'].isnull()