Catch errors during mkdirs, prevent duplicated download #4389
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This PR catches errors during the directory creating, which previously resulted in executing the whole script again.
Now, if the script was previously interrupted the script will continue if the needed directories already exist.
Furthermore, the
ILSVRC2012_bbox_train_v2.tar.gz
is now only downloaded once, in the case where noBASE_URL_CHANGE
was neccessary.