check if column exists in dataframe
if 'A' in df.columns:check if column exists in dataframe
if 'A' in df.columns:how to check if datapoint is in pandas column
# to mark NaN column as True
df['your column name'].isnull()pandas check if value in column is in a list
df_new[df_new['l_ext'].isin([31, 22, 30, 25, 64])]check if column exists in dataframe python
if 'A' in df:Copyright © 2021 Codeinu
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