大约有 40,000 项符合查询结果（耗时：0.0650秒） [XML]
Filtering for empty or NULL names in a queryset
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868
You could do this:
Name.objects.exclude(alias__isnull=True)
If you need to exclude null valu...
Case insensitive 'in'
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186
username = 'MICHAEL89'
if username.upper() in (name.upper() for name in USERNAMES):
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Al...
How can I output leading zeros in Ruby?
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6 Answers
6
Active
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How do I get bash completion to work with aliases?
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6
This is the only correct answer I've seen amongst many wrong ones.
– eighteyes
Mar 22 '13 at 19:16
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Python JSON serialize a Decimal object
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answered Dec 25 '09 at 6:43
Michał MarczykMichał Marczyk
79.3k1111 gold badges187187 silver badges206206 bronze badges
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Event system in Python
....2.3a0: 2018
buslane 0.0.5: 2018
PyPyDispatcher 2.1.2: 2017
axel 0.0.7: 2016
blinker 1.4: 2015
PyDispatcher 2.0.5: 2015
pymitter 0.2.3: 2014
dispatcher 1.0: 2012
py-notify 0.3.1: 2008
There's more
That's a lot of libraries to choose from, using very different terminology (events, signals, handlers,...
setuptools: package data folder location
..., but the code doesn't need to change:
/Users/pat/virtenv/foo/lib/python2.6/site-packages/foo-0.0.0-py2.6.egg/foo/data/resource1/foo.txt
Option 2: Install to fixed location
The alternative would be to place your data outside the Python package and then
either:
Have the location of data passe...
Extract substring in Bash
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answered Jan 9 '09 at 13:56
FerranBFerranB
30.2k1818 gold badges6363 silver badges8282 bronze badges
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Aren't Python strings immutable? Then why does a + “ ” + b work?
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BortBort
6,78933 gold badges2727 silver badges4646 bronze badges
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Getting Django admin url for an object
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62
I had a similar issue where I would try to call reverse('admin_index') and was constantly getti...