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Filtering a list based on a list of booleans
...gt;>> %timeit list(compress(list_a, fil))
100000 loops, best of 3: 2.58 us per loop
>>> %timeit [i for (i, v) in zip(list_a, fil) if v] #winner
100000 loops, best of 3: 1.98 us per loop
>>> list_a = [1, 2, 4, 6]*100
>>> fil = [True, False, True, False]*100
>>...
What is an SDL renderer?
... Stevoisiak
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answered Jan 8 '14 at 21:59
olevegardolevegard
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Select distinct values from a table field
...Shop'
class Shop(models.Model):
street = models.CharField(max_length=150)
city = models.CharField(max_length=150)
# some of your models may have explicit ordering
class Meta:
ordering = ('city')
Since you may have the Meta class ordering attribute set, you can use order_b...
Align button at the bottom of div using CSS
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edited Apr 16 '15 at 6:35
answered Apr 28 '11 at 10:36
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How do I use Node.js Crypto to create a HMAC-SHA1 hash?
... Ricardo TomasiRicardo Tomasi
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What do the f and t commands do in Vim?
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Michael KristofikMichael Kristofik
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django: BooleanField, how to set the default value to true?
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edited Jun 2 '19 at 20:56
user8193706
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answered Mar 4 '11 at 6:29
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How default .equals and .hashCode will work for my classes?
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Yes, the default implementation is Object's (generally speaking; if you inherit from a class tha...
How to use base class's constructors and assignment operator in C++?
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5 Answers
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HTML 5: Is it , , or ?
...swers , but I'm still confused — especially after seeing W3schools HTML 5 reference .
27 Answers
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