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How can I calculate the difference between two dates?

... date using e.g. an NSDateFormatter, the NSDateFormatter converts the time from the configured timezone. Therefore, the number of seconds between two NSDate objects will always be time-zone-agnostic. Furthermore, this documentation specifies that Cocoa's implementation of time does not account for ...
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How do I use Wget to download all images into a single folder, from a URL?

I am using wget to download all images from a website and it works fine but it stores the original hierarchy of the site with all the subfolders and so the images are dotted around. Is there a way so that it will just download all the images into a single folder? The syntax I'm using at the moment i...
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Check if Python Package is installed

...k if a package is installed while within a Python script? I know it's easy from the interpreter, but I need to do it within a script. ...
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How to access app.config in a blueprint?

... Use flask.current_app in place of app in the blueprint view. from flask import current_app @api.route("/info") def get_account_num(): num = current_app.config["INFO"] The current_app proxy is only available in the context of a request. ...
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Copying files from Docker container to host

... In order to copy a file from a container to the host, you can use the command docker cp <containerId>:/file/path/within/container /host/path/target Here's an example: $ sudo docker cp goofy_roentgen:/out_read.jpg . Here goofy_roentgen is...
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How to make Git “forget” about a file that was tracked but is now in .gitignore?

... .gitignore will prevent untracked files from being added (without an add -f) to the set of files tracked by git, however git will continue to track any files that are already being tracked. To stop tracking a file you need to remove it from the index. This can be ...
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Linking R and Julia?

... The RJulia R package looks quite good now from R. R CMD check runs without warnings or errors (if julia is properly installed). Biggest TODO in my view is to get Julia to return named lists which constitute the really basic flexible general data structure in R. No...
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Is it possible to view RabbitMQ message contents directly from the command line?

Is it possible to view RabbitMQ message contents directly from the command line? 6 Answers ...
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Returning JSON from a PHP Script

I want to return JSON from a PHP script. 18 Answers 18 ...
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Apache: client denied by server configuration

...s in <Directory "your directory here"> Order allow,deny Allow from all # New directive needed in Apache 2.4.3: Require all granted </Directory> share | improve this answer...