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cd plots/New\ Folder\ With\ Items\ 2

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fnames = !ls *

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newfnames = []
for fname in fnames:
    stripped = fname.split('_')[0]
    if stripped not in newfnames:
        newfnames.append(stripped)

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imgids = newfnames

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for i,imgid in enumerate(imgids):
    print("{} %".format(100*i/len(imgids)))
    !convert -delay 150 {imgid}_?.png {imgid}.gif

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