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Merge PDF files

...splitting documents page by page, * merging documents page by page, (and much more) Here's a sample program that works with both versions. #!/usr/bin/env python import sys try: from PyPDF2 import PdfFileReader, PdfFileWriter except ImportError: from pyPdf import PdfFileReader, PdfFil...
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Should .nuget folder be added to version control?

...tomatically restore packages on build. So the .nuget folder can be deleted and the option removed from your projects. http://docs.nuget.org/docs/reference/package-restore UPDATE: With the release of NuGet 4.x and .NET Standard 2.0, when you use the new csproj format you can now use package referen...
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How do I parse command line arguments in Java?

What is a good way of parsing command line arguments in Java? 20 Answers 20 ...
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Should I use alias or alias_method?

...ned in the Module class.) alias's behavior changes depending on its scope and can be quite unpredictable at times. Verdict: Use alias_method - it gives you a ton more flexibility. Usage: def foo "foo" end alias_method :baz, :foo ...
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Naming returned columns in Pandas aggregate function? [duplicate]

I'm having trouble with Pandas' groupby functionality. I've read the documentation , but I can't see to figure out how to apply aggregate functions to multiple columns and have custom names for those columns. ...
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Understanding colors on Android (six characters)

I am trying to understand how colors work in Android. I have this color set as the background of my LinearLayout , and I get a background gray with some transparency: ...
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Easy way of running the same junit test over and over?

...est as a parametrized test (annotate with an @RunWith(Parameterized.class) and add a method to provide 10 empty parameters). That way the framework will run the test 10 times. This test would need to be the only test in the class, or better put all test methods should need to be run 10 times in the...
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Python `if x is not None` or `if not x is None`?

...he if not x is None version to be more clear, but Google's style guide and PEP-8 both use if x is not None . Is there any minor performance difference (I'm assuming not), and is there any case where one really doesn't fit (making the other a clear winner for my convention)?* ...
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Tab Vs Space preferences in Vim

...very accommodating when it comes to tab Vs. space preferences. As I understand it, the tabstop setting indicates the width of a tab character. The shiftwidth setting specifies how many columns to increment/decrement when using the << and >> commands, whereas the softtabstop set...
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How to use Java property files?

...alue pairs of configuration values I want to store as Java property files, and later load and iterate through. 17 Answers ...