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Python __call__ special method practical example

I know that __call__ method in a class is triggered when the instance of a class is called. However, I have no idea when I can use this special method, because one can simply create a new method and perform the same operation done in __call__ method and instead of calling the instance, you can c...
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Does uninstalling a package with “pip” also remove the dependent packages?

When you use pip to install a package, all the required packages will also be installed with it (dependencies). Does uninstalling that package also remove the dependent packages? ...
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Accessing bash command line args $@ vs $*

In many SO questions and bash tutorials I see that I can access command line args in bash scripts in two ways: 5 Answers ...
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JRuby on Rails vs. Ruby on Rails, what's difference?

...ou'll need something like the Rawr or Roir gem to do this completely (last time I used Mingle, it had un-obfuscated Ruby files...). – Marnen Laibow-Koser Nov 3 '11 at 16:31 ad...
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How to scale down a range of numbers with a known min and max value

...maximum values from my data set, but I won't have the min and max until runtime. Is there an easy way to do this? 8 Answer...
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How to install APK from PC?

...ake it visible, go to Settings > About phone and tap Build number seven times. Return to the previous screen to find Developer options at the bottom. – Olaf Aug 11 '14 at 16:09 ...
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Python's equivalent of && (logical-and) in an if-statement

Here's my code: 10 Answers 10 ...
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Best way to create a simple python web service [closed]

I've been using python for years, but I have little experience with python web programming. I'd like to create a very simple web service that exposes some functionality from an existing python script for use within my company. It will likely return the results in csv. What's the quickest way to get ...
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Grant execute permission for a user on all stored procedures in database?

I generated script from old database, created a new database and imported all data from old database. So far so good, however, no user has execute rights for stored procedures. I know I can use ...
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How does one remove an image in Docker?

I'm running Docker under Vagrant under OS X 10.8.4 (Mountain Lion), and whenever I try to delete a saved image, I get an error: ...