text_html_output_1.png
import pandas as pd

sales = pd.read_csv('../input/competitive-data-science-predict-future-sales/sales_train.csv')
test_data = pd.read_csv('../input/competitive-data-science-predict-future-sales/test.csv')
items = pd.read_csv('../input/competitive-data-science-predict-future-sales/items.csv')
item_category = pd.read_csv('../input/competitive-data-science-predict-future-sales/item_categories.csv')
shops = pd.read_csv('../input/competitive-data-science-predict-future-sales/shops.csv')
sales.head()