Probably you already thought of this, but just in case: even if the opens and closes are paired you will run into trouble if you have too many files open concurrently - you open new files while old files are still open. A subtle way that could happen is if you have recursion (perhaps by accident) so check sub calls for that possibility.

True laziness is hard work

In reply to Re: Too many open files error on windows by GrandFather
in thread Too many open files error on windows by Anonymous Monk

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