Here’s a generator that yields the chunks you want:

def chunks(lst, n):
    """Yield successive n-sized chunks from lst."""
    for i in range(0, len(lst), n):
        yield lst[i:i + n]

import pprint
pprint.pprint(list(chunks(range(10, 75), 10)))
[[10, 11, 12, 13, 14, 15, 16, 17, 18, 19],
 [20, 21, 22, 23, 24, 25, 26, 27, 28, 29],
 [30, 31, 32, 33, 34, 35, 36, 37, 38, 39],
 [40, 41, 42, 43, 44, 45, 46, 47, 48, 49],
 [50, 51, 52, 53, 54, 55, 56, 57, 58, 59],
 [60, 61, 62, 63, 64, 65, 66, 67, 68, 69],
 [70, 71, 72, 73, 74]]

If you’re using Python 2, you should use xrange() instead of range():

def chunks(lst, n):
    """Yield successive n-sized chunks from lst."""
    for i in xrange(0, len(lst), n):
        yield lst[i:i + n]

Also you can simply use list comprehension instead of writing a function, though it’s a good idea to encapsulate operations like this in named functions so that your code is easier to understand. Python 3:

[lst[i:i + n] for i in range(0, len(lst), n)]

Python 2 version:

[lst[i:i + n] for i in xrange(0, len(lst), n)]

Related Posts:

  1. How do you split a list into evenly sized chunks?
  2. Python 2: AttributeError: ‘list’ object has no attribute ‘strip’
  3. How to split elements of a list?
  4. How can I reverse a list in Python?
  5. Difference between del, remove, and pop on lists
  6. How can I reverse a list in Python?
  7. What is the difference between Python’s list methods append and extend?
  8. Understanding slice notation
  9. Understanding slice notation
  10. How to convert list to string [duplicate]
  11. How do I get the number of elements in a list?
  12. Finding the index of an item in a list
  13. How to make a flat list out of a list of lists
  14. Removing duplicates in lists
  15. List changes unexpectedly after assignment. Why is this and how can I prevent it?
  16. TypeError: ‘float’ object is not subscriptable
  17. Is there a short contains function for lists?
  18. TypeError: ‘float’ object is not subscriptable
  19. Transpose/Unzip Function (inverse of zip)?
  20. appending list but error ‘NoneType’ object has no attribute ‘append’
  21. How can I split and parse a string in Python?
  22. Check if something is (not) in a list in Python
  23. How to avoid “RuntimeError: dictionary changed size during iteration” error?
  24. Finding the average of a list
  25. Print a list in reverse order with range()?
  26. Get unique values from a list in python [duplicate]
  27. Why is it string.join(list) instead of list.join(string)?
  28. Why is it string.join(list) instead of list.join(string)?
  29. How do I concatenate two lists in Python?
  30. if else in a list comprehension
  31. Finding median of list in Python
  32. Python set to list
  33. Python List vs. Array – when to use?
  34. Split string with multiple delimiters in Python [duplicate]
  35. How to find all occurrences of an element in a list
  36. Finding and replacing elements in a list
  37. How to find all the indexes of a recurring item in a list?
  38. ValueError: max() arg is an empty sequence
  39. How do I concatenate two lists in Python?
  40. Replace values in list using Python
  41. Append integer to beginning of list in Python
  42. List comprehension on a nested list?
  43. Union of two lists in Python
  44. Writing a list to a file with Python
  45. Python: Get the first character of the first string in a list?
  46. Understanding slice notation
  47. Add list to set?
  48. What’s the idiomatic syntax for prepending to a short python list?
  49. How to remove an element from a list by index
  50. Apply function to each element of a list
  51. Converting Dictionary to List?
  52. How to deep copy a list?
  53. TypeError: list indices must be integers or slices, not str
  54. How to check if a string is a substring of items in a list of strings?
  55. In Python, when to use a Dictionary, List or Set?
  56. Check if two unordered lists are equal
  57. ‘list’ object has no attribute ‘shape’
  58. How do I find the duplicates in a list and create another list with them?
  59. How can I compare two lists in python and return matches
  60. How do I check if a list is empty?
  61. How can I get list of values from dict?
  62. IndexError: list index out of range and python
  63. AttributeError: ‘list’ object has no attribute ‘replace’ when trying to remove character
  64. How to sort a list of objects based on an attribute of the objects?
  65. Pop index out of range
  66. AttributeError: ‘list’ object has no attribute ‘replace’ when trying to remove character
  67. Print list without brackets in a single row
  68. How to iterate through two lists in parallel?
  69. How to split a string into a list of characters in Python?
  70. How to remove \n from a list element?
  71. How do I check if there are duplicates in a flat list?
  72. How to return dictionary keys as a list in Python?
  73. Append a tuple to a list – what’s the difference between two ways?
  74. Defining lists as global variables in Python
  75. Subtracting two lists in Python
  76. Get the cartesian product of a series of lists?
  77. How to concatenate items in a list to a single string?
  78. AttributeError: ‘list’ object has no attribute ‘lower’ gensim
  79. What does the “x for x in” syntax mean?
  80. How to make a set of lists
  81. Python data structure sort list alphabetically
  82. Pandas split DataFrame by column value
  83. numpy-equivalent of list.pop?
  84. Create nice column output in python
  85. TypeError: only integer arrays with one element can be converted to an index 3
  86. How to create a numpy array of lists?
  87. Logical indexing with lists
  88. How does str(list) work?
  89. convert csv file to list of dictionaries
  90. Element-wise addition of 2 lists?
  91. Find object in list that has attribute equal to some value (that meets any condition)
  92. Turn a single number into single digits Python
  93. Iterating through list of list in Python
  94. Python cant convert ‘list’ object to str error [closed]
  95. Get difference between two lists
  96. How is Python’s List Implemented?
  97. Determine if 2 lists have the same elements, regardless of order? [duplicate]
  98. Building a list inside a list in python
  99. Sorting list based on values from another list
  100. Create a list with initial capacity in Python

Leave a Comment