Human: Python program to get the least value in a column in a dataframe. Assistant: 
Here is a Python program to get the least value in a column in a dataframe

import pandas as pd

def get_least_value(df):
    """Return the least value in a column in a dataframe."""
    return df.min()

# Enter the dataframe
df = pd.DataFrame({'age': [1, 2, 3], 'name': ['dahlia','airplane', 'bird']})

# Calling the function
print((get_least_value(df)))

#Example Output
# age            1
# name    airplane
# dtype: object

#Remember to inspect code for bugs.