Re: Didn't ElReg just have a story about women-only coding camp?
Yes and no. It would be similar to a men only nursing or childcare course. It is a course, not a job, and I would have enjoyed having some courses without girls.
On the other hand, there are a number of scholarships that are open only to women, and this I find a bit more difficult. Yes, you want to have more women in academia in science. This is however much too late. When young girls always get told they don't have to be good in maths because they are girls - quite often by their moms - then it is no wonder they don't study physics etc.
Another thing I saw: most of my female fellow students left after their MSc for high paying industry jobs. That's more intelligent than continuing in science.