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AttributeError: 'module' object has no attribute

...ave mutual top-level imports, which is almost always a bad idea. If you really must have mutual imports in Python, the way to do it is to import them within a function: # In b.py: def cause_a_to_do_something(): import a a.do_something() Now a.py can safely do import b without causing pro...
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What is the default text size on Android?

...ues are defined within the following TextAppearances: - TextAppearance.Small - TextAppearance.Medium - TextAppearance.Large More information about Typography can be found in the design guidelines Related to your question: If you don't set a custom textSize or textAppearance, TextAppearance.S...
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How to check if one DateTime is greater than the other in C#

...swered Sep 18 '08 at 19:17 Jon GallowayJon Galloway 49k2424 gold badges118118 silver badges191191 bronze badges ...
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How to get URL of current page in PHP [duplicate]

...e - the former has the path to the actual script, the latter has the originally requested path. – Amber Aug 16 '09 at 2:19 1 ...
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Pointers in Python?

...ur request is utterly impossible. Why ask for something impossible and totally different from the (possible) thing you actually want?! Maybe you don't realize how drastically different barenames and decorated names are. When you refer to a barename a, you're getting exactly the object a was last ...
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Why do people say there is modulo bias when using a random number generator?

...AND_MAX is 10 and I decide to generate a random number between 0 and 2 by calling rand()%3. However, rand()%3 does not produce the numbers between 0 and 2 with equal probability! When rand() returns 0, 3, 6, or 9, rand()%3 == 0. Therefore, P(0) = 4/11 When rand() returns 1, 4, 7, or 10, rand()%3 ...
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Strings are objects in Java, so why don't we use 'new' to create them?

...ew String("abcd")] in Java are interned - this means that every time you refer to "abcd", you get a reference to a single String instance, rather than a new one each time. So you will have: String a = "abcd"; String b = "abcd"; a == b; //True but if you had String a = new String("abcd"); Strin...
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Loaded nib but the 'view' outlet was not set

...s are right, but as I'm a newcomer it took me a little while to figure out all the steps to do that. Here's what worked for me: Open the XIB file causing problems Click on file's owner icon on the left bar (top one, looks like a yellow outlined box) If you don't see the right-hand sidebar, click o...
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An async/await example that causes a deadlock

...lick for UI / MyController.Get for ASP.NET): The top-level method calls GetJsonAsync (within the UI/ASP.NET context). GetJsonAsync starts the REST request by calling HttpClient.GetStringAsync (still within the context). GetStringAsync returns an uncompleted Task, indicating the REST requ...
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How does the main() method work in C?

...d nothing bad happens with their given compiler. This is the case if the calling conventions are such that: The calling function cleans up the arguments. The leftmost arguments are closer to the top of the stack, or to the base of the stack frame, so that spurious arguments do not invalidate the ...