Detecting consecutive integers in a list [duplicate]

by

From the docs:

>>> from itertools import groupby
>>> from operator import itemgetter
>>> data = [ 1, 4,5,6, 10, 15,16,17,18, 22, 25,26,27,28]
>>> for k, g in groupby(enumerate(data), lambda (i, x): i-x):
...     print map(itemgetter(1), g)
...
[1]
[4, 5, 6]
[10]
[15, 16, 17, 18]
[22]
[25, 26, 27, 28]

You can adapt this fairly easily to get a printed set of ranges.

More Related Contents:

  1. Removing duplicates in lists
  2. Permutations between two lists of unequal length
  3. How to efficiently compare two unordered lists (not sets) in Python?
  4. Pythonic way to check if a list is sorted or not
  5. How to efficiently compare two unordered lists (not sets)?
  6. In Python, what is the fastest algorithm for removing duplicates from a list so that all elements are unique *while preserving order*? [duplicate]
  7. Checking if all elements in a list are unique
  8. Complexity of list.index(x) in Python
  9. Python: find closest string (from a list) to another string
  10. Sliding window maximum in O(n) time
  11. How to split an iterable into two lists with alternating elements
  12. How can I match up permutations of a long list with a shorter list (according to the length of the shorter list)? [duplicate]
  13. Python – Removing overlapping lists
  14. Find non-common elements in lists
  15. How to add numbers inside a variable? [closed]
  16. Is there a way to ordinate numbers in a list?
  17. Remove all the elements that occur in one list from another
  18. Finding the average of a list
  19. Negative list index? [duplicate]
  20. How to switch position of two items in a Python list?
  21. Algorithm to find which number in a list sum up to a certain number
  22. Joining pairs of elements of a list [duplicate]
  23. Convert string to list. Python [string.split() acting weird]
  24. How do you split reading a large csv file into evenly-sized chunks in Python?
  25. What’s the difference between plus and append in python for list manipulation? [duplicate]
  26. Assign multiple values of a list
  27. Deleting consonants from a string in Python
  28. Python: Elegant and efficient ways to mask a list
  29. list comprehension with multiple conditions (python)
  30. How to convert only numbers in a mixed list into float

Leave a Comment