check if column exists in dataframe
if 'A' in df.columns:check if column exists in dataframe
if 'A' in df.columns:check if column exists in dataframe python
if 'A' in df:if in df.columns
import pandas as pd
numbers = {'set_of_numbers': [1,2,3,4,5,6,7,8,9,10]}
df = pd.DataFrame(numbers,columns=['set_of_numbers'])
df['equal_or_lower_than_4?'] = df['set_of_numbers'].apply(lambda x: 'True' if x <= 4 else 'False')
print (df)Copyright © 2021 Codeinu
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