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What exactly do “u” and “r” string flags do, and what are raw string literals?

... There's not really any "raw string"; there are raw string literals, which are exactly the string literals marked by an 'r' before the opening quote. A "raw string literal" is a slightly different syntax for a string literal, in which a ba...
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UnicodeDecodeError: 'charmap' codec can't decode byte X in position Y: character maps to

...re out yourself. Common ones are Latin-1 and UTF-8. Since 0x90 doesn't actually mean anything in Latin-1, UTF-8 (where 0x90 is a continuation byte) is more likely. You specify the encoding when you open the file: file = open(filename, encoding="utf8") ...
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Haskell offline documentation?

... Hoogle is available offline, installable from Cabal: http://hackage.haskell.org/package/hoogle Usage instructions are at http://www.haskell.org/haskellwiki/Hoogle#Command_Line_Search_Flags. Usage: $ hoogle --help Hoogle v4.2.8, (C) Neil Mitchell 2004-2011...
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How to convert lazy sequence to non-lazy in Clojure

... doall is all you need. Just because the seq has type LazySeq doesn't mean it has pending evaluation. Lazy seqs cache their results, so all you need to do is walk the lazy seq once (as doall does) in order to force it all, and t...
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Where could I buy a valid SSL certificate? [closed]

...d" message. I realized that you need an intermediate certificate. When installing a startssl cert make sure you follow the steps here: startssl.com/?app=20 (for me I selected nginx) make sure you follow the part about the intermediate cert. Also you can double check cert problems here: sslshopper.co...
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jQuery: how to get which button was clicked upon form submission?

... Oh, I see. You're adding your own "clicked" attribute. I was looking all over for a "clicked" boolean and couldn't find one anywhere. I never thought of making one myself. Good idea! – hawkexp Apr 19 '11 at 20:33 ...
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Kill a Process by Looking up the Port being used by it from a .BAT

...iable (in our case, %%P). delims looks empty, but that extra space is actually significant. netstat -a -n -o Just run it and find out. According to the command line help, it "Displays all connections and listening ports.", "Displays addresses and port numbers in numerical form.", and "Displays ...
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“The underlying connection was closed: An unexpected error occurred on a send.” With SSL Certificate

...e careful because this change is global to your AppDomain, and will cause calls to any site which doesn't offer TLS 1.2 to fail (which you may prefer if the data to be transported is truly sensitive). To prefer TLS 1.2 but still allow 1.1 and 1.0, you have to OR them: ServicePointManager.SecurityPro...
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A definitive guide to API-breaking changes in .NET

... information as possible regarding API versioning in .NET/CLR, and specifically how API changes do or do not break client applications. First, let's define some terms: ...
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Form inside a table

... A form is not allowed to be a child element of a table, tbody or tr. Attempting to put one there will tend to cause the browser to move the form to it appears after the table (while leaving its contents — table rows, table cells, inputs,...