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Add new snippet: Yielding None
Closes https://github.com/satwikkansal/wtfpython/issues/32
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@ -83,14 +83,16 @@ So, here ya go...
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- [💡 Explanation:](#-explanation-18)
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- [Needle in a Haystack](#needle-in-a-haystack)
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- [💡 Explanation:](#-explanation-19)
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- [The surprising comma](#the-surprising-comma)
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- [yielding None](#yielding-none)
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- [💡 Explanation:](#-explanation-20)
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- [For what?](#for-what)
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- [The surprising comma](#the-surprising-comma)
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- [💡 Explanation:](#-explanation-21)
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- [not knot!](#not-knot)
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- [For what?](#for-what)
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- [💡 Explanation:](#-explanation-22)
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- [Let's see if you can guess this?](#lets-see-if-you-can-guess-this)
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- [not knot!](#not-knot)
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- [💡 Explanation:](#-explanation-23)
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- [Let's see if you can guess this?](#lets-see-if-you-can-guess-this)
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- [💡 Explanation:](#-explanation-24)
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- [Minor Ones](#minor-ones)
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- [TODO: Hell of an example!](#todo-hell-of-an-example)
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- [Contributing](#contributing)
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@ -1491,6 +1493,38 @@ tuple()
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---
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### yielding None
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Suggested by @chris-rands in [this](https://github.com/satwikkansal/wtfpython/issues/32) issue.
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```py
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some_iterable = ('a', 'b')
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def some_func(val):
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return "something"
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```
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**Output:**
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```py
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>>> [x for x in some_iterable]
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['a', 'b']
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>>> [(yield x) for x in some_iterable]
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<generator object <listcomp> at 0x7f70b0a4ad58>
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>>> list([(yield x) for x in some_iterable])
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['a', 'b']
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>>> list((yield x) for x in some_iterable)
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['a', None, 'b', None]
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>>> list(some_func((yield x)) for x in some_iterable)
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['a', 'something', 'b', 'something']
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```
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#### 💡 Explanation:
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- Source and explanation can be found here: https://stackoverflow.com/questions/32139885/yield-in-list-comprehensions-and-generator-expressions
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- Related bug report: http://bugs.python.org/issue10544
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---
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### The surprising comma
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Suggested by @MostAwesomeDude in [this](https://github.com/satwikkansal/wtfPython/issues/1) issue.
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