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Does Python support short-circuiting?

...or in operator and, or: Let's first define a useful function to determine if something is executed or not. A simple function that accepts an argument, prints a message and returns the input, unchanged. >>> def fun(i): ... print "executed" ... return i ... One can observe the P...
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How can I check for Python version in a program that uses new language features?

If I have a Python script that requires at least a particular version of Python, what is the correct way to fail gracefully when an earlier version of Python is used to launch the script? ...
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Why do we need a pure virtual destructor in C++?

...class Base { public: Base(); virtual ~Base() = 0; // Pure virtual, now no one can create the Base Object directly }; Base::Base() { cout << "Base Constructor" << endl; } Base::~Base() { cout << "Base Destructor" << endl; } class Derived : public Base { public: ...
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Name node is in safe mode. Not able to leave

... Updated my answer as per new distributions, if anyone can help us out in establishing the exact version of apache hadoop since when these deprecations have come into picture, it would be great. – Amar Mar 19 '14 at 19:03 ...
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std::find,std::find_if使用小结 - C/C++ - 清泛网 - 专注C/C++及内核技术

std::find,std::find_if使用小结STL的find,find_if函数提供了一种对数组、STL容器进行查找的方法。使用该函数,需 #include <algorithm>我们查找一个list中的数据,通常...STL的find,find_if函数提供了一种对数组、STL容器进行查找的方法。使...
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Reload Flask app when template file changes

...lask.run ), it monitors its Python files and automatically reloads the app if its code changes: 10 Answers ...
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How to use ArrayAdapter

I have created row.xml in layouts, but don't know how to show both reason and long_val in the ListView using ArrayAdapter. ...
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Shell command to sum integers, one per line?

...the stack has two or more values, run "add_top_of_stack" Print the result, now the only item left in the stack To really understand the simplicity and power of dc, here is a working Python script that implements some of the commands from dc and executes a Python version of the above command
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addEventListener not working in IE8

... Try: if (_checkbox.addEventListener) { _checkbox.addEventListener("click", setCheckedValues, false); } else { _checkbox.attachEvent("onclick", setCheckedValues); } Update:: For Internet Explorer versions prior to IE9, at...
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How can I correctly prefix a word with “a” and “an”?

...to use "A" or "AN" find the longest matching prefix, and follow its lead. If you didn't discard the empty prefix in step 4, then there will always be a matching prefix (namely the empty prefix), otherwise you may need a special case for a completely-non matching string (such input should be very ra...