Full exit crash if bundled python is blocked by firewall when downloading from community list

[joepal1976]

Copied from original report in makehumancommunity/makehuman#127

Not sure if this belongs here, or under sockets.
Crashed by doing this:
having firewall rules not set for bundled python, or set to block, in 'simplewall' firewall software
Go to community tab and selecting clothes (probably any would do the same)
Click Update List
select an item and press download
MakeHuman does a full exit crash as the firewalls permission windows pops up, or if the bundled python is on the block list

[Aranuvir]

having firewall rules not set for bundled python

Not sure if this is equivalent to simply deactivating the network interface. Running a test with that particular condition (on my Linux system) MakeHuman/AssetDownloader simply does nothing, neither crash nor give any warning inside the app (but there are some file not found errors in the logs).
This leads to the question, whether simplewall just blocks the connection or inhibits the app from further execution? In the latter scenario I wouldn't be surprised about a full application crash.
Being very cautious on that statement (at the moment), but it might turn out that we have to rewrite simplewall rather than our code.