Identify Column Indices in pandas DataFrame in Python (Example Code)

In this Python programming tutorial you’ll learn how to return the index of a certain variable in a pandas DataFrame.

Setting up the Example

import pandas as pd                                # Load pandas library
my_df = pd.DataFrame({'A':[1, 2, 9, 2, 1, 2, 7],  # Construct example DataFrame
                      'B':[5, 3, 8, 7, 1, 9, 2],
                      'C':[8, 2, 5, 7, 1, 2, 6]})
print(my_df)                                      # Display example DataFrame in console
#    A  B  C
# 0  1  5  8
# 1  2  3  2
# 2  9  8  5
# 3  2  7  7
# 4  1  1  1
# 5  2  9  2
# 6  7  2  6

Example: Find Index Position of Variable in pandas DataFrame

print(my_df.columns.get_loc("B"))                 # Identify index position of column
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