We need to know the importance of using regular expressions in various file formats such as CSV and SQLite3. In this section, we will be covering the CSV format. So, let's examine a question using one of our past datasets. Using our Baseball dataset, let's try to find out the average number of runs scored by away teams in the month of March. To do this, we'll need our CSV file of data, which has the dates in the first column, but is not organized by month.
So, in order to solve this, we're going to be crafting a regular expression to match a field in the CSV file. In this case, we will be using the first column of dates. We're going to be pairing that information with another column; and in this case, the other column is going to be the runs scored by away teams. Then, we're going to filter that information to get...
