... This is especially nice for adding a level to the columns by adding axis=1, since the df.columns doesn't have the "set_index" method like the index, which always bugs me. – Rutger Kassies Feb 10 '17 a...

... This answer helped me a lot because doAnswer()/thenAnswer() do not allow chaining multiple calls as doReturn()/thenReturn() do and I needed to compute something and not just return a different value. Creating an anonymous Answer object with a private count variable was what did the trick for...

...of course completely wrong. The trick is that only the build() method actually creates a Foo (hence you Foo can be immutable). FooFactory.create(), whereXXX(..) and withXXX(..) all create "something else". That something else may be a FooFactory, here's one way to do it.... You FooFactory would ...

Is there a simple way to recursively find all files in a directory hierarchy, that do not end in a list of extensions? E.g. all files that are not *.dll or *.exe ...

... Okay turned out that I made a really silly mistake. The device I am using for testing is running Android 4.0.4, API level 15. The styles.xml file that I was editing is in the default values folder. I edited the styles.xml in values-v14 folder and it works ...

...ygments to provide top-notch syntax highlighting in LaTeX. For example, it allows the following output. Here’s a minimal file to reproduce the above code (notice that including Unicode characters might require XeTeX)! \documentclass[a4paper]{article} \usepackage{fontspec} \usepackage{minted} ...

... Correct answer, never 'ignore' warnings if at all possible. Ignore enough warnings, some day they'll cause you to miss a REAL problem. – Manius Oct 18 '10 at 1:38 ...

... 3 in all cases, since the static int total inherited by SomeDerivedClass is exactly the one in SomeClass, not a distinct variable. Edit: actually 4 in all cases, as @ejames spotted and pointed out in his answer, which see. Edit:...

...1, 4, 1].count(1) 3 Don't use this if you want to count multiple items. Calling count in a loop requires a separate pass over the list for every count call, which can be catastrophic for performance. If you want to count all items, or even just multiple items, use Counter, as explained in the othe...

...it or Mercurial there is no technical difference between trunk and branch: all branches are created equal (there might be social difference, though). Merging in either direction is done the same way. You need to provide new -g (--use-merge-history) option to svn log and svn blame to take merge trac...