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Matplotlib: “Unknown projection '3d'” error

...e you using? (Try running: python -c 'import matplotlib; print matplotlib."__version__") I'm guessing you're running version 0.99, in which case you'll need to either use a slightly different syntax or update to a more recent version of matplotlib. If you're running version 0.99, try doing this in...
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What are 'closures' in .NET?

...thod and the variable j [CompilerGenerated] private sealed class <>c__DisplayClass2 { public <>c__DisplayClass2(); public void <fillFunc>b__0() { Console.Write("{0} ", this.j); } public int j; } for the function: static void fillFunc(int count) { ...
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is_null($x) vs $x === null in PHP [duplicate]

...someone strongly suggested that I use is_null() instead as it is specifically designed for the null-evaluation purpose. He also started talking about math or something. ...
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Using the rJava package on Win7 64 bit with R

I'm trying to install rJava on a computer with Win 7 64 bit. When I run 12 Answers 1...
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Dynamic instantiation from string name of a class in dynamically imported module?

... You can use getattr getattr(module, class_name) to access the class. More complete code: module = __import__(module_name) class_ = getattr(module, class_name) instance = class_() As mentioned below, we may use importlib import importlib module = importlib.imp...
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What are allowed characters in cookies?

What are the allowed characters in both cookie name and value? Are they same as URL or some common subset? 13 Answers ...
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How can you dynamically create variables via a while loop? [duplicate]

I want to create variables dynamically via a while loop in Python. Does anyone have any creative means of doing this? 8 Ans...
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What are five things you hate about your favorite language? [closed]

...ld be matched to another NULL value. If you understand this (what also is called ternary logic) than you might understand the reason for introducing the "IS" operator for testing against NULL. – Alex Aug 26 '10 at 16:58 ...
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read complete file without using loop in java

... If the file is small, you can read the whole data once: File file = new File("a.txt"); FileInputStream fis = new FileInputStream(file); byte[] data = new byte[(int) file.length()]; fis.read(data); fis.close(); String str = new String(data, ...
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Handling a colon in an element ID in a CSS selector [duplicate]

...mpatibility mode. This other answer to this same question did work. basically \3A instead of \:. – Merlyn Morgan-Graham Mar 30 '12 at 2:32 ...