If this has already been covered, please excuse me, since I did not have the time to read through all the posts...
I would strongly suggest you not allow her to pick a gun. If she has no experience the chances of her making a good choice is very slim.
What she needs is training first. Get her to a good basic handgun safety course followed by a good CCW course that goes over not only the mechanics of shooting, but covers the legal issues involved in CCW. That is JOB ONE.
For a beginner, I would also strongly suggest you guide her toward a revolver as her first handgun. The manual of arms is a lot simpler and when she learns to handle it well, she will be in a much better position to move to a semi-auto or just stick with the revolver.
Training first will make all the difference.
If she doesn't want to invest the time in training and instruction, then tell her not to even think about carrying a gun.
My 2 cents...
Once again, thinking for other folks rarely ends well.
How much training did you pay for without a weapon?
As with my daughters, I own a bunch of handguns (about 75), had my daughters shoot what ever caught their fancy, and a bunch of suggestions. Took them to a range to try some that I did not have.
My oldest who does not carry, liked the Glock 30 best. My youngest who does shoot and even competes on occasion choose a Government model (full size 5") 45acp 1911. Asked for a Colt on her 21st birthday. I got her and set up a Colt Combat Elite. Thin grips, low thumb safety, short trigger, flat Main spring housing etc. For CCW she got a little Springfield EMP. Oh, she is 4'10" just over 100 lbs.
I tried to push her to a Glock 26, HK P2000sk LEM 9mm, M&P 9mm, etc.... My youngest thought they were "klunky" and she preferred the 1911 system/single action. Of course, she shoots the Colt regularly for grins and giggles.
I recommend everyone try a Glock 9mm 17/19/26/34 or S&W M&P 9mm Pro/L/FS/Compact for their first gun when I am asked. I usually let them shoot each of those models of mine, just to try them. Some like the HK P2000sk, and now the new Ruger SR9c too.
Kahr, but reliability is often raise as an issue with some Kahrs I have owned. Kel-Tec etc....
Let the lady decide for herself. My only direction is when a less than reliable or underpowered weapon is chosen. I will not go to 380's except for extreme situations.
If the lady is recoil sensitive, usually a large frame 380 is required. Bersa, Beretta, SIG 230/232 etc is what I go to. The small compact models usually recoil to much for the recoil sensitive.
Wherever you wind up, trust the shooter. THEN get them to school/training with their chosen weapon, understanding that after shooting it in training she may choose to go with a different gun.
One lady friend went to Gunsite with her SIG 239 9mm which she had been shooting for a couple years before I met her. They, Gunsite, sold her a M&P 45 full size. As soon as she got back I swapped her a M&P compact 9mm (ammo costs being my primary issue, recoil was secondary). She has been shooting that compact gun with 17 round magazines and spacers for competitions, and CCW/EDC with the 12 round magazines for about a year and a half now. Tried to offer her a fullsize 9 but seems to really love her compact. She is deadly with that little M&Pc.
Reliability, fit, recoil, ammo cost, ability to maintain, etc...
Let the ladies choose with assistance for their purposes, not yours.
Good luck.
Fred