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How to use “raise” keyword in Python [duplicate]

...ead the official definition of "raise", but I still don't quite understand what it does. 6 Answers ...
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How to embed small icon in UILabel

... Great call on using attachment.bounds. Thats exactly what I was looking for. – Geoherna Oct 8 '16 at 18:33 2 ...
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How can I rename a database column in a Ruby on Rails migration?

... While it's normal practice to revert what you did in self.up I would not say self.down "should always be opposite". In depends on the context of your migration. Just putting the "opposite" might not be the "right" down migration. – nowk ...
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how to use ng-option to set default value of select element

... ng-option directive is somewhat complicated and confusing on its syntax. I think the flexibility to bind objects has made it a bit complicated. The way I try to remember this is that whenever I am using an object, I explicitly indicate what properties ...
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TypeError: unhashable type: 'dict'

...f code is giving me an error unhashable type: dict can anyone explain me what is the solution 2 Answers ...
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What is an application binary interface (ABI)?

I never clearly understood what an ABI is. Please don't point me to a Wikipedia article. If I could understand it, I wouldn't be here posting such a lengthy post. ...
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How do you read a file into a list in Python? [duplicate]

... efficient than collecting all data in a list. Digressed a little bit from what is asked from but I mentioned it as Samples 1 and 2 are not memory efficient. – Srikar Appalaraju Jun 21 '17 at 9:11 ...
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rsync error: failed to set times on “/foo/bar”: Operation not permitted

...oesn't (properly) handle times -- I think SMB shares or FAT or something. What is your target filesystem? share | improve this answer | follow | ...
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How to use the 'main' parameter in package.json?

... @Kokodoko yes that is what is suggested in this case – cquezel Jul 11 '19 at 16:55 add a comment  |  ...
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Converting RGB to grayscale/intensity

...are correct. .3,.6,.11 is the old NTSC standard, not sRGB/Rec709 (which is what the web and most computers use). And your 0.25,0.5,0.25 is not a reasonable tradeoff — B is only 7% of luminance, you're wrong by 347%. The coefficients for sRGB/r709 (after linearization): Rlin * 0.2126 + Glin * 0.715...