I recently had occasion to look in my process list in the Activity Monitor app on my iMac, and found that there were over a dozen python processes listed, which was odd because I did not at the moment have any python applications running. (The only things running were Safari and Mail.) This was a few days ago, and I figured I should do a little testing before posting about it. Plus, I got the 0.6.2 upgrade yesterday, and I wasn't sure if the problem remained.
Today I had a moment to experiment. I opened Calibre, watched a bunch of python processes show up, closed Calibre, and watched them disappear. So far so good. I re-opened Calibre, saw the same smallish number of python processes show up, added twelve books, watched a huge swath of python processes appear, waited for it to finish adding, did a bulk change meta information on the books I just added, closed calibre... and four python processes remained.
These processes appear to be zombies, they're using zero CPU, but they are using 17.89 MB of system memory each. With only four of them that's not a big deal, but if I've been using Calibre for a while and there are well over a dozen, it starts to add up.
I am using Calibre 0.6.2 and the latest MacOS X with all updates installed, on an iMac G5.
