Test whether Column Name Exists in pandas DataFrame in Python (Example Code)

In this post, I’ll explain how to test whether a column name exists in a pandas DataFrame in the Python programming language.

Setting up the Example

import pandas as pd                              # Load pandas library
my_df = pd.DataFrame({'A':[5, 7, 1, 2, 8, 2],    # Construct example DataFrame in Python
                      'B':[1, 2, 3, 4, 5, 6]})
print(my_df)                                     # Display example DataFrame in console
#    A  B
# 0  5  1
# 1  7  2
# 2  1  3
# 3  2  4
# 4  8  5
# 5  2  6

Example: Searching for Column Name in pandas DataFrame

print('B' in my_df.columns)                      # Test for existing column
# True

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