import os, shutil

dir = os.path.expanduser('~/Desktop/100MSDCF')

setOffset = 0 # number for first set.

files = os.listdir(dir)

if len(files) == 0:

print 'No files.'

exit(0)

lastDate = None

sets = []

thisSet = []

for file in sorted(files):

filename = os.path.join(dir, file)

if os.path.isdir(filename): continue

if not '.JPG' in filename: continue

# mtime is the only one that works, sadly the resolution is not high enough to detect when the camera buffer was full.

thisDate = os.path.getmtime(filename)

if lastDate:

timeDeltaSec = thisDate - lastDate

if timeDeltaSec < 3: # Apparently within a burst, some files will have a time difference of 2 seconds.

thisSet.append(filename) # add file to this set; it was taken soon after the previous file.

else:

print 'Start of set: %s - %10.3f' % (file, timeDeltaSec)

sets.append(thisSet) # store the set

thisSet = [filename] # start a new one.

else:

thisSet.append(filename) # first time around; add file to set.

lastDate = thisDate

if len(thisSet) > 0:

# Trailing images got collected here. That's our last set.

sets.append(thisSet)

for i in range(0, len(sets)):

set = sets[i]

setNum = i + setOffset

print 'set %2d: %s to %s (%3d images)' % (setNum, os.path.basename(set[0]),

os.path.basename(set[-1]), len(set))

newDirName = os.path.join(dir, 'set_%02d' % setNum)

os.mkdir(newDirName)

for oldFile in set:

# By putting a hyphen in the name, we can then use negative file numbers to encode sequences in reverse.

newFile = os.path.join(newDirName, 'image-%s' % os.path.basename(oldFile)[len('DSC'):])

print '\t%s --> %s' % (oldFile, newFile)

shutil.move(oldFile, newFile)