This is a library that provides a single function, tabulate(), for tabulating and printing lists of lists or lists of dictionaries.

>>> from tabulator import tabulate
>>> data = [
...     ['England', 53012],
...     ['Scotland', 5295],
...     ['Wales', 3063],
...     ['N. Ireland', 1811],
... ]
>>> tabulate(data, headers=['Country', 'Pop. (000s)'])
| Country    | Pop. (000s) |
+------------+-------------+
| England    |       53012 |
| Scotland   |        5295 |
| Wales      |        3063 |
| N. Ireland |        1811 |

The code in the library is not the best: there's a lot of duplication which make it hard to follow.

Exercise: refactor tabulator.py to make the code clearer.

test_tabulator.py contains a number of test cases that will help you to ensure your refactoring has not broken the code. To run the test cases, install pytest:

$ pip install pytest

and then run:

$ pytest