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What does -> mean in Python function definitions?
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And the information is available as a .__annotations__ attribute.
– Martijn Pieters♦
Jan 17 '13 at 13:06
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How to programmatically set style attribute in a view
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Generally you can't change styles programmatically; you can set the look of a screen, or part of a layout, or individual button in your XML layout using themes or styles. Themes can, however, be applied programmatically.
There i...
wget/curl large file from google drive
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answered Jun 3 '18 at 19:11
phiphi
4,73333 gold badges1212 silver badges2121 bronze badges
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【解决】scrapyd启动job时报错：exceptions.TypeError: __init__() got an ...
【解决】scrapyd启动job时报错：exceptions.TypeError: __init__() got an unexpected keyword argument '_job'进入项目spiders目录, 修改 spider py 文件（你自己的spider的主文件）：def __init__(self):改为：def __init__(self, *args, **kwargs):最后不要忘了重新部署一...
Unique fields that allow nulls in Django
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Karen TraceyKaren Tracey
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How to create a multiline UITextfield?
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UITextField is specifically one-line only.
Your Google search is correct, you need to use UITextView instead of UITextField for display and editing of multiline text.
In Interface Builder, add a UITextView where you want it and select the "editab...
PHP - iterate on string characters
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Just note that you're calling strlen() on each iteration. Not a terrible thing, since PHP has the length precalculated, but still a function call. If you have a need for speed, better save that in a variable before starting the loop.
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How can you automatically remove trailing whitespace in vim
...We use as much vi as vim (I use vim; they don't because they'd have to install it). I have a program I call stb to Strip Trailing Blanks and I use that as a filter; works in vi too. This is better.
– Jonathan Leffler
Jan 15 '09 at 14:06
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error C2780: \'void __cdecl std::sort(_RI,_RI,_Pr)\' : expects 3 argum...
error C2780: 'void __cdecl std::sort(_RI,_RI,_Pr)' : expects 3 arguments - 2 providedprog7.cpp(8) :error C2780:'void __cdecl std::sort(_RI,_RI,_Pr)' : expects 3 arguments - 2 provided C: Pr...prog7.cpp(8) : error C2780: 'void __cdecl std::sort(_RI,_RI,_Pr)' : expects 3 arguments - 2 provided
C:...
How to delete items from a dictionary while iterating over it?
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Traceback (most recent call last):
File "<ipython console>", line 1, in <module>
RuntimeError: dictionary changed size during iteration
As stated in delnan's answer, deleting entries causes problems when the iterator tries to move on...