Sometimes, we'll have zipped data that needs to be flattened. For example, our input could be a file that has columnar data. It looks like this:
2 3 5 7 11 13 17 19 23 29 31 37 41 43 47 53 59 61 67 71 ...
We can easily use (line.split() for line in file) to create a sequence. Each item within that sequence will be a 10-item tuple from the values on a single line.
This creates data in blocks of 10 values. It looks as follows:
>>> blocked = list(line.split() for line in file)>>> blocked[['2', '3', '5', '7', '11', '13', '17', '19', '23', '29'], ['31', '37', '41', '43', '47', '53', '59', '61', '67', '71'], ['179', '181', '191', '193', '197', '199', '211', '223', '227', '229']]
This is a start, but it isn't complete. We want ...
