import glob, shutil, os, zipfile

dates=set()
fromdir="pix"
todir="camarchiv"

dates=set()
for file in glob.glob(fromdir+"/*.jpg"):
    date = file[9+len(fromdir)+1:9+len(fromdir)+1+10] #snapshot- = 9, / = 1, yyyy-mm-dd = 10
    dates.add(date)
today=datetime.date.fromtimestamp(time.time()).strftime("%Y-%m-%d")
if today in dates:
    dates.remove(today)

for date in dates:
    files = glob.glob(fromdir+"/*"+date+"*.jpg")
    zip=zipfile.ZipFile("zips/"+date+".zip", "w")
    for file in files:
        zip.write(file, os.path.basename(file), zipfile.ZIP_DEFLATED)
    zip.close()
    for file in files:
        os.unlink(file)