The goal of this exercise is to learn to manipulate real data with Pandas.
The data set used is **Individual household electric power consumption**
The data set used is [**Individual household electric power consumption**](https://assets.01-edu.org/ai-branch/piscine-ai/household_power_consumption.txt)
1. Delete the columns `Time`, `Sub_metering_2` and `Sub_metering_3`