Python - concatenate if null

# Option 1
df['concat'] = np.where(df['var_1'] == '', df['var_2'], df['var_1'] + '_u')

# Option 2
def concat_fields(field1, field2):
        if field1.empty:
            return field2
        else:
            return field1 + '_u'

Source: stackoverflow.com

Similar codes

2 votes128 views1 answer
MAPE python
Python
0 vote187 views1 answer
Aiohttp.client_exceptions.ClientConnectorCertificateError
Python
0 vote168 views1 answer
First 2 terms
Python
1 vote114 views1 answer
Run streamlit from python
Python
0 vote150 views1 answer
First n lis tpython
Python
1 vote556 views1 answer
Pandas dataframe convert yes no to 0 1
Python
1 vote136 views1 answer
How to convert text to speech using pthon
Python
1 vote117 views1 answer
Current date to epoch python
Python
-2 votes123 views3 answers
Pygame tutorial
Python
8 votes141 views3 answers
Python print version
Python