<|user|>
Visualize toothpaste sales data of each month with a pie chart.<|end|>
<|assistant|>
```python
import pandas as pd
import matplotlib.pyplot as plt

df = pd.read_csv("D:\Python\Articles\matplotlib\sales_data.csv")
salesData = df['toothpaste'].tolist()
monthList = df['month_number'].tolist()
plt.pie(salesData, labels=monthList, autopct='%1.1f%%')
plt.title('toothpaste Sales data')
plt.show()
```<|end|>
