I understand that with dataframe.loc[:, "variable1", "variable2"] - variable1 is the start, variable2 is the end so what is the purpose of the ;?
Specifically, this line of code has confused me https://www.kaggle.com/code/apapiu/regularized-linear-models
all_data = pd.concat(
(
train.loc[:, 'MSSubClass': 'SaleCondition'],
test.loc[:, 'MSSubClass': 'SaleCondition']
)
)