https://github.com/mineo/enumerate_skip

enumerate extended to support manual advancement or skipping of the index
https://github.com/mineo/enumerate_skip

enumeration iteration python

Last synced: about 2 months ago
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enumerate extended to support manual advancement or skipping of the index

• Host: GitHub
• URL: https://github.com/mineo/enumerate_skip
• Owner: mineo
• License: mit
• Created: 2015-01-04T15:48:08.000Z (almost 10 years ago)
• Default Branch: master
• Last Pushed: 2021-04-05T12:24:37.000Z (over 3 years ago)
• Last Synced: 2024-11-13T23:14:42.890Z (about 2 months ago)
• Topics: enumeration, iteration, python
• Language: Python
• Homepage:
• Size: 12.7 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.rst
  • License: LICENSE

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README

        
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enumerate_skip

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This package provides 2 iterators, `enumerate_skip` and `enumerate_manual`, that

extend the behaviour of the standard libraries `enumerate` a bit.

`enumerate_skip` has been extended with a `skip` method that makes sure the next

`index` yielded is the same as the current one. The word `skip` might not make

sense at first, but this function was written because I needed to not handle

some values yielded by an iterator, like::

  for index, obj in enumerate(...):

      if obj.has_some_attr():

          continue

      # do something with object and index here

If `index` in that example was printed to the user (or something similar), there

would be gaps. Using `enumerate_skip` instead, the above example could be

written as::

  it = enumerate_skip(...)

  for index, obj in it:

      if obj.has_some_attr():

          it.skip()

          continue

      # do something with object and index here

`enumerate_manual` works the other way around: you have to manually call

`advance` on it to increment the `index`::

  it = enumerate_manual(...)

  for index, obj in it:

      if obj.has_some_attr():

          continue

      # do something with object and index here

      it.advance()