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How to add pandas data to an existing csv file?

... | edited Nov 1 '17 at 17:10 root 23.8k44 gold badges5151 silver badges6464 bronze badges an...
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How to import multiple .csv files at once?

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How can I add new keys to a dictionary?

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Looping over a list in Python

...n mylist[:] and your len(x) should be equal to 3. >>> mylist = [[1,2,3],[4,5,6,7],[8,9,10]] >>> for x in mylist: ... if len(x)==3: ... print x ... [1, 2, 3] [8, 9, 10] or if you need more pythonic use list-comprehensions >>> [x for x in mylist if len(x)==3...
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Mimicking sets in JavaScript?

...bj = {}; // or create an object with some items already in it var obj = {"1":true, "2":true, "3":true, "9":true}; Question 1: Is A in the list: if (A in obj) { // put code here } Question 2: Delete 'A' from the list if it's there: delete obj[A]; Question 3: Add 'A' to the list if it wasn't a...
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Execute Python script via crontab

...e a python script using the Linux crontab. I want to run this script every 10 minutes. 3 Answers ...
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cannot load such file — zlib even after using rvm pkg install zlib

I installed zlib package and ruby 1.9.3 using rvm, but whenever I try to install gems it says cannot load such file -- zlib ...
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Visual Studio or Resharper functionality for placement of using directives

... UPDATE - ReSharper 2016.1: This option is now moved to Code Editing → C# → Code Style → Add 'using' directive to the deepest scope Have you tried the ReSharper option: Languages → C# → Formatting Style → Namespace Imports → Add us...
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What is a reasonable order of Java modifiers (abstract, final, public, static, etc.)?

... 127 The customary usage order of the modifiers is mentioned in the Java Language Specification (an...
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Fade In Fade Out Android Animation in Java

I want to have a 2 second animation of an ImageView that spends 1000ms fading in and then 1000ms fading out. 11 Answers ...