... this seems the most pythonic which keeps order. not sure why this isn't upvoted higher!! thx for the great solution! – Bill D Mar 1 '18 at 6:15 ...

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...e scripts to use activate_this.py instead of using the location of the Python interpreter to select the environment. Note: you must run this after you've installed any packages into the environment. If you make an environment relocatable, then install a new package, you must run v...

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... a special builtin method that determines how == is handled when used on a Python object. Here we have overridden it so that when == is used on objects of type Foo it always returns true. There isn't an equivalent method for the is operator and so the behaviour of is cannot be changed in the same wa...

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