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Understanding the difference between __getattr__ and __getattribute__

...tattr__ only gets called for attributes that don't actually exist. If you set an attribute directly, referencing that attribute will retrieve it without calling __getattr__. __getattribute__ is called all the times. share...
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How can I recover a lost commit in Git?

... friend. Find the commit that you want to be on in that list and you can reset to it (for example:git reset --hard e870e41). (If you didn't commit your changes... you might be in trouble - commit early, and commit often!) s...
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How to filter SQL results in a has-many-through relation

...ment for this test: PostgreSQL 9.0 on Debian Squeeze with decent RAM and settings. 6.000 students, 24.000 club memberships (data copied from a similar database with real life data.) Slight diversion from the naming schema in the question: student.id is student.stud_id and club.id is club.club_id h...
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What's the pythonic way to use getters and setters?

...rty.""" print("getter of x called") return self._x @x.setter def x(self, value): print("setter of x called") self._x = value @x.deleter def x(self): print("deleter of x called") del self._x c = C() c.x = 'foo' # setter called foo =...
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How do I check if a string is valid JSON in Python?

...stake on my part. It appears I just cant call file.read() twice. But I can set a variable and use it. And thats what I did. – Joey Blake Apr 4 '11 at 15:23 5 ...
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How to check if a string is a valid hex color representation?

... browswer do the the work for you. Step 1: Create a div with border-style set to none. The div can be positioned off screen or it can be any div on your page that doesn't use the borders. Step 2: Set the border color to an empty string. The code might look something like this: e=document.getElem...
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nServiceBus vs Mass Transit vs Rhino Service Bus vs other?

...od place to start.. In our 3.1 release, we're introducing NSB Studio - a set of Visual Studio integrated modeling tools that enable you to model your system at a higher level of abstraction and have much of the configuration and initialization of NServiceBus be done for you automatically. I'd say ...
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Why does the CheckBoxFor render an additional input tag, and how can I get the value using the FormC

...eFor(expression).ToString(); tag.Attributes["value"] = "true"; // set the "checked" attribute if true ModelMetadata metadata = ModelMetadata.FromLambdaExpression(expression, html.ViewData); if (metadata.Model != null) { bool modelChecked; if (Boolean.TryParse(met...
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How to install PyQt4 on Windows using pip?

...ll as AMD created their own (incompatible) 64bit architectures/instruction sets back then (1990s to early 2000s). Intel developed "IA-64" and AMD developed "AMD64". To make it short: AMD's version was better and Intel adopted it, now calling it Intel64 for their CPUs - both are pretty much compatibl...
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How do I plot in real-time in a while loop using matplotlib?

...r loop, append new data values to the two lists 3. call plt.gca().lines[0].set_xdata(x); plt.gca().lines[0].set_ydata(y); plt.gca().relim(); plt.gca().autoscale_view(); plt.pause(0.05); – Trevor Boyd Smith Apr 13 '16 at 18:09 ...