Pandas is a popular data manipulation module in python which provides data structures and data analysis tools.
Firstly, you must install pandas library if it’s not yet installed. You can use pip package installer. Open your python command line and type:
```
pip install pandas
```
Then, after successful installation, you can now import pandas to your python script:
```
import pandas as pd
```
Commonly pandas is aliased as pd, you can use any name you want.
Here is a simple example on how to use pandas, by creating a simple dataframe from a dictionary:
```
import pandas as pd
print(purchases)
```
This code will output:
```
apples oranges
0 3 0
1 2 3
2 0 7
3 1 2
```
A more detailed guide and usage can be found in pandas official documentation:
https://pandas.pydata.org/docs/index.html