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How to “inverse match” with regex?

... (?!Andrea).{6} Assuming your regexp engine supports negative lookaheads.. Edit: ..or maybe you'd prefer to use [A-Za-z]{6} in place of .{6} Edit (again): Note that lookaheads and lookbehinds are generally not the right way t...
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How to check if Receiver is registered in Android?

...nregisterReceiver(BroadcastReceiver) passing itself as the argument after handling the Intent that it receives. There is a small chance that the receiver's onReceive(Context, Intent) method is called more than once, since it is registered with multiple IntentFilters, creating the potential for a...
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unable to print object ('po') in xcode6 beta 6 osx swift project: (Error in auto-import: failed to g

An attempt to print object ( po command) in xcode 6 beta 6 OSX Swift project results in this error message: 5 Answers ...
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Is iterating ConcurrentHashMap values thread safe?

... obtain from a ConcurrentHashMap is designed to be used by a single thread and should not be passed around. This includes the syntactic sugar that the for-each loop provides. What happens if I try to iterate the map with two threads at the same time? It will work as expected if each of the thr...
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How to get the type of T from a member of a generic class or method?

... If I understand correctly, your list has the same type parameter as the container class itself. If this is the case, then: Type typeParameterType = typeof(T); If you are in the lucky situation of having object as a type parameter, see...
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iterating over and removing from a map [duplicate]

... set is backed by the map, so changes to the map are reflected in the set, and vice-versa share | improve this answer | follow | ...
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What's the simplest way to subtract a month from a date in Python?

...// 12 if not m: m = 12 d = min(date.day, [31, 29 if y%4==0 and (not y%100==0 or y%400 == 0) else 28, 31,30,31,30,31,31,30,31,30,31][m-1]) return date.replace(day=d,month=m, year=y) >>> for m in range(-12, 12): print(monthdelta(datetime.now(), m)) 2009-...
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method overloading vs optional parameter in C# 4.0 [duplicate]

...DoFoo(c:"Hello There, John Doe") This call takes parameter a value as 10 and parameter b as 23. Another variant of this call - notice you don't need to set the parameter values in the order as they appear in the method signature, the named parameter makes the value explicit. DoFoo(c:"hello again...
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How should I structure a Python package that contains Cython code

... I've done this myself now, in a Python package simplerandom (BitBucket repo - EDIT: now github) (I don't expect this to be a popular package, but it was a good chance to learn Cython). This method relies on the fact that building a .pyx file with Cython.Distutils.build_ext (at ...
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In Python, how do I iterate over a dictionary in sorted key order?

... This is not obvious. In fact, items() creates a list and therefore uses memory, whereas iteritems() essentially does not use memory. What to use mostly depend on the size of the dictionary. Furthermore, the automatic Python 2 to Python 3 conversion tool (2to3) automatically tak...