import pandas as pd

# Creating a DataFrame
df = pd.DataFrame({'A': [10, 2, 7, 1, 15], 'B': [4, 2, 6, 28, 8,],
    'C': [7, 1, 9, 10, 19]})

# Sort df for A in ascending order
df.sort_values('A', ascending=True, inplace=True)

# Print sorted data frame
print(df)

>>>

    A   B   C
3   1  28  10
1   2   2   1
2   7   6   9
0  10   4   7
4  15   8  19