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List comprehension rebinds names even after scope of comprehension. Is this right?

... Also note that now in 2.7, set and dictionary comprehensions (and generators) have private scopes, but list comprehensions still don't. While this makes some sense in that the former were all back-ported from Python 3, it really makes the c...
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Check whether a path is valid in Python without creating a file at the path's target

...e). Syntactic correctness. Root filesystem. That's it. Question #1: How Now Shall We Do Pathname Validity? Validating pathnames in Python is surprisingly non-intuitive. I'm in firm agreement with Fake Name here: the official os.path package should provide an out-of-the-box solution for this. For...
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Python class inherits object

...problem… Python introduced new-style classes back in Python 2.2, and by now old-style classes are really quite old. Discussion of old-style classes is buried in the 2.x docs, and non-existent in the 3.x docs. The problem is, the syntax for old-style classes in Python 2.x is the same as the alter...
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Partly JSON unmarshal into a map in Go

...t as value identifier, telling the Go server what kind of value it is. By knowing what type of value, I can then proceed to JSON unmarshal the value into the correct type of struct. ...
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Android:What is difference between setFlags and addFlags for intent

...| operator. // example... // value of flags: 1 intent.setFlags(2|4); // now flags have this value: 110 intent.addFlags(8); // now flags have this value: 1110 share | improve this answer ...
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How to dismiss notification after action has been clicked

... See design guidelines. Here's the complete(ish) code to implement. Until now, having a 'Dismiss' button was less important, but now it's more in your face. Building the Notification int notificationId = new Random().nextInt(); // just use a counter in some util class... PendingIntent dismissIn...
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Git pull a certain branch from GitHub

... a project with multiple branches. I've been pushing them to GitHub , and now that someone else is working on the project I need to pull their branches from GitHub. It works fine in master. But say that someone created a branch xyz . How can I pull branch xyz from GitHub and merge it into branch...
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What does && mean in void *p = &&abc;

...id *p = &&abc; . What is the significance of && here? I know about rvalue references but I think && used in this context is different. What does && indicate in void *p = &&abc; ? ...
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Matplotlib - global legend and title aside subplots

I've started with matplot and managed some basic plots, but now I find it hard to discover how to do some stuff I need now :( ...
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jQuery event handlers always execute in order they were bound - any way around this? [duplicate]

...ted Answer jQuery changed the location of where events are stored in 1.8. Now you know why it is such a bad idea to mess around with internal APIs :) The new internal API to access to events for a DOM object is available through the global jQuery object, and not tied to each instance, and it takes...