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How do I copy an entire directory of files into an existing directory using Python?

... containing one or more files). Make sure there is not a directory named foo . 14 Answers ...
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Mocking a class: Mock() or patch()?

...MyClass') ... def create_instance2(MyClass): ... MyClass.return_value = 'foo' ... return create_instance() ... >>> i = create_instance2() >>> i 'foo' >>> def create_instance(): ... print MyClass ... return MyClass() ... >>> create_instance2() <mock.Moc...
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Is SQL syntax case sensitive?

...es, then yes they are, but not the commands themselves. So SELECT * FROM foo; is the same as select * from foo; but not the same as select * from FOO; share | improve this answer |...
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What happens when there's insufficient memory to throw an OutOfMemoryError?

... try { for (int n = 1; true; n += n) { int[] foo = new int[n]; } } catch (OutOfMemoryError e) { if (e == o) System.out.println("Got the same OutOfMemoryError twice: " + e); else test(e); } } pub...
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How to construct a relative path in Java from two absolute paths (or URLs)?

... dir // For example, the relative path from // // /foo/bar/baz/gg/ff to /foo/bar/baz // // ".." if ff is a file // "../.." if ff is a directory // // The following is a heuristic to figure out if the base refers to a file or dir. It's ...
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How to get name of exception that was caught in Python?

...tion.__class__.__name__ exception.__class__.__qualname__ e.g., try: foo = bar except Exception as exception: assert type(exception).__name__ == 'NameError' assert exception.__class__.__name__ == 'NameError' assert exception.__class__.__qualname__ == 'NameError' ...
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How do I append one string to another in Python?

...neck caused by string concatenations then just stick with + and +=: s = 'foo' s += 'bar' s += 'baz' That said, if you're aiming for something like Java's StringBuilder, the canonical Python idiom is to add items to a list and then use str.join to concatenate them all at the end: l = [] l.append...
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How/When does Execute Shell mark a build as failure in Jenkins?

... exit code, you can either hoist the command into your if statement: grep foo bar; if [ $? == 0 ]; then ... --> if grep foo bar; then ... Or you can capture the return code in your || clause: grep foo bar || ret=$? ...
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What are the main purposes of using std::forward and which problems it solves?

...the function the parameter could be passed as an lvalue to anything: void foo(int&); template <typename T> void deduce(T&& x) { foo(x); // fine, foo can refer to x } deduce(1); // okay, foo operates on x which has a value of 1 That's no good. E needs to get the same kind o...
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What is the python “with” statement designed for?

...sulated for convenient reuse. 2. You could do something like: with open("foo.txt") as foo_file: data = foo_file.read() OR from contextlib import nested with nested(A(), B(), C()) as (X, Y, Z): do_something() OR (Python 3.1) with open('data') as input_file, open('result', 'w') as outpu...