Dev python3: fix a bug and remove some code in python2

thiagoralves / OpenPLC_Editor

OpenPLC Editor - IDE capable of creating programs for the OpenPLC Runtime

GNU General Public License v2.0

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Closed zarekvane closed 2 years ago

zarekvane commented 2 years ago

fix a bug: "check updating" dialog always pops up when any file menu event is triggered.
replace urllib2 with urllib.request.