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How to get instance variables in Python?

Is there a built-in method in Python to get an array of all a class' instance variables? For example, if I have this code: ...
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Python matplotlib multiple bars

How to plot multiple bars in matplotlib, when I tried to call the bar function multiple times, they overlap and as seen the below figure the highest value red can be seen only. How can I plot the multiple bars with dates on the x-axes? ...
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Python loop that also accesses previous and next values

... The edited version of this is still not logically sound: At the end of the loop obj and next_ will be the same object for the last iteration, which may have unintended side effects. – TemporalWolf Dec 5 '17 at 22:01 ...
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ValueError: The truth value of an array with more than one element is ambiguous. Use a.any() or a.al

I just discovered a logical bug in my code which was causing all sorts of problems. I was inadvertently doing a bitwise AND instead of a logical AND . ...
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Stop “developer tools access needs to take control of another process for debugging to continue” ale

... Per Zev Eisenberg's answer, reinstalling Xcode 4.2.1 worked. However, it might be easier to just patch the /etc/authorization file with the following diff. <key>system.privilege.taskport.debug</key> <dict> <...
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Where and how is the _ViewStart.cshtml layout file linked?

... Starting with the ASP.NET MVC 3 Beta release, you can now add a file called _ViewStart.cshtml (or _ViewStart.vbhtml for VB) underneath the \Views folder of your project: The _ViewStart file can be used to define common view code that you want to execute at the start of each View’s re...
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How does JavaScript .prototype work?

...ing languages but I've written my fair share of JavaScript code. I never really got my head around this prototype-based programming, does any one know how this works? ...
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Create a “with” block on several context managers? [duplicate]

...rite: with A() as X, B() as Y, C() as Z: do_something() This is normally the best method to use, but if you have an unknown-length list of context managers you'll need one of the below methods. In Python 3.3, you can enter an unknown-length list of context managers by using contextlib.Exit...
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Convert XML to JSON (and back) using Javascript

...cts) and vice versa javascript conversion functions. The library is very small and doesn't require any other additional libraries. API functions new X2JS() - to create your instance to access all library functionality. Also you could specify optional configuration options here X2JS.xml2json - Conve...
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How can I do a line break (line continuation) in Python?

... Actually, you have the style guide's preference exactly backwards. Implicit continuation is preferred, explicit backslash is to be used only if necessary. – Carl Meyer Sep 11 '08 at 19:00 ...