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What does 'super' do in Python?
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What's the difference?
SomeBaseClass.__init__(self)
means to call SomeBaseClass's __init__. while
super(Child, self).__init__()
means to call a bound __init__ from the parent class that follows Child in the instance's Method Resolution Order (MRO).
If the instance is a subclass of ...
Access multiple elements of list knowing their index
...3, 8, 5, 6])
b = [1, 2, 5]
print(list(a[b]))
# Result:
[1, 5, 5]
But really, your current solution is fine. It's probably the neatest out of all of them.
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Is there a way to create multiline comments in Python?
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You can use triple-quoted strings. When they're not a docstring (the first thing in a class/function/module), they are ignored.
'''
This is a multiline
comment.
'''
(Make sure to indent the leading ''' appropriately to avoid an IndentationError.)
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Regex (grep) for multi-line search needed [duplicate]
...iods) and blanks, but also quotes and anything that can be inside a quoted string.
I would likely go with a Perl-based solution, having Perl read 'paragraphs' at a time and applying a regex to that. The downside is having to deal with the recursive search - there are modules to do that, of course,...
Linux反编译全攻略 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
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00000110 55 50 58 20 54 65 61 6D 2E 20 41 6C 6C 20 52 69 UPX Team. All Ri
00000120 67 68 74 73 20 52 65 73 65 72 76 65 64 2E 20 24 ghts Reserved. $
从上面的信息中可以看到程序被UPX压缩了，接下来请确信你系统中已有UPX，如果没有请到上面给...
More elegant “ps aux | grep -v grep”
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This works for me for an arbitrary string, but not for a username, e.g. ps aux | grep '[r]oot' . Does anyone know why?
– kxsong
Oct 1 '14 at 19:41
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How to order citations by appearance using BibTeX?
...es and rebuild.
If you use MiKTeX you shouldn't need to download anything extra.
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How can I test https connections with Django as easily as I can non-https connections using 'runserv
...ert.key which can then be reused for future sessions.
There is a bunch of extra stuff included in django-extensions that you may find of use so it is worth having a quick flick through the docs.
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windows service vs scheduled task
...t method for the single-thread approach.
protected override void OnStart (string args) {
// Create worker thread; this will invoke the WorkerFunction
// when we start it.
// Since we use a separate worker thread, the main service
// thread will return quickly, telling Windows that serv...
Format string, integer with leading zeros
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Use the format string "img_%03d.jpg" to get decimal numbers with three digits and leading zeros.
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