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Convert datetime to Unix timestamp and convert it back in python

I have dt = datetime(2013,9,1,11) , and I would like to get a Unix timestamp of this datetime object. 11 Answers ...
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Why all the Active Record hate? [closed]

As I learn more and more about OOP, and start to implement various design patterns, I keep coming back to cases where people are hating on Active Record . ...
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MySQL: @variable vs. variable. What's the difference?

...are loosely typed variables that may be initialized somewhere in a session and keep their value until the session ends. They are prepended with an @ sign, like this: @var You can initialize this variable with a SET statement or inside a query: SET @var = 1 SELECT @var2 := 2 When you develop a stor...
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MySQL, better to insert NULL or empty string?

...a lot of different fields. Some of the fields are optional while some are mandatory. In my DB I have a table which holds all these values, is it better practice to insert a NULL value or an empty string into the DB columns where the user didn't put any data? ...
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Execution of Python code with -m option or not

... When you use the -m command-line flag, Python will import a module or package for you, then run it as a script. When you don't use the -m flag, the file you named is run as just a script. The distinction is important when you try to run a package. T...
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Python Infinity - Any caveats?

So Python has positive and negative infinity: 5 Answers 5 ...
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How to check if all list items have the same value and return it, or return an “otherValue” if they

..., otherwise I need to use an “otherValue”. I can’t think of a simple and clear way of doing this. 9 Answers ...
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Checking for a dirty index or untracked files with Git

...;/dev/null| grep "^M" | wc -l) # Get number of files that are uncommitted and not added expr $(git status --porcelain 2>/dev/null| grep "^ M" | wc -l) # Get number of total uncommited files expr $(git status --porcelain 2>/dev/null| egrep "^(M| M)" | wc -l) Note: The 2>/dev/null filters...
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Java packages com and org

What are the meaning of the packages org and com in Java? 4 Answers 4 ...
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Problems with lib-icu dependency when installing Symfony 2.3.x via Composer

...icu4c // osx check the extension is enabled and properly configured in php.ini aswell. ( hint: php-cli sometimes uses a different php.ini ) php.ini extension=intl.so ; *nix extension=php_intl.dll ; windows [intl] intl.default_locale = en_utf8 intl.error_lev...