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How to avoid “cannot load such file — utils/popen” from homebrew on OSX

... The problem mainly occurs after updating OS X to El Capitan (OS X 10.11) or macOS Sierra (macOS 10.12). This is because of file permission issues with El Capitan’s or later macOS's new SIP process. Try changing the permissions for the /usr/local directory: $ sud...
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Determine if Python is running inside virtualenv

Is it possible to determine if the current script is running inside a virtualenv environment? 16 Answers ...
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How to use hex color values

... How would you handle 123ABC? The compiler is burking at it not being a digit. – Islam Q. Mar 2 '16 at 6:28 1 ...
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pdf2htmlEX实现pdf转html - 开源 & Github - 清泛网 - 专注C/C++及内核技术

...amGobbler extends Thread { InputStream is; String type; OutputStream os; StreamGobbler(InputStream is, String type) { this(is, type, null); } StreamGobbler(InputStream is, String type, OutputStream redirect) { this.is = is; this.type = type; this...
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Understanding :source option of has_one/has_many through of Rails

...'ve chosen to namespace the Dog::Breed, because we want to access Dog.find(123).breeds as a nice and convenient association. Now, if we now want to create a has_many :dog_breeds, :through => :dogs association on Pet, we suddenly have a problem. Rails won't be able to find a :dog_breeds associati...
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psql: could not connect to server: No such file or directory (Mac OS X)

Upon restarting my Mac I got the dreaded Postgres error: 21 Answers 21 ...
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Java current machine name and logged in user?

Is it possible to get the name of the currently logged in user (Windows/Unix) and the hostname of the machine? 4 Answers ...
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How do I create a unique constraint that also allows nulls?

...et_AllowNull UNIQUE (TicketID, TicketUnique); If IssueID 1 has ticket 123, the UNIQUE constraint will be on values (123, NULL). If IssueID 2 has no ticket, it will be on (NULL, 2). Some thought will show that this constraint cannot be duplicated for any row in the table, and still allows multip...
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\r\n, \r and \n what is the difference between them? [duplicate]

... \r = CR (Carriage Return) → Used as a new line character in Mac OS before X \n = LF (Line Feed) → Used as a new line character in Unix/Mac OS X \r\n = CR + LF → Used as a new line character in Windows share ...
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Android: android.content.res.Resources$NotFoundException: String resource ID #0x5

... be, incercari.setText(valIncercari+""); Or incercari.setText(Integer.toString(valIncercari)); share | improve this answer | follow | ...