I am having a problem with PyCharm (Community Edition) in that, when I open a .py file in the program, I can happily read and write in the file as usual, however when I click out of PyCharm (to look my emails for example) and then click back into it to carry on with my code, the file automatically closes and the project tree structure collapses (so I have to re-open it every time).
So far I have tried changing the tab limit to a high number, but this doesn't seem to help (and it shouldn't be related, since this happens when I open just one file).
Any help is much appreciated!
I had the same issue before. I'm assuming you're connected to a network shared folder via UNC path (e.g. \\foo\bar\)?
If so, it is not currently supported. You'll need to map your network folder and give it a Drive letter. Then load up your project using the mapped drive, and it'll work like a charm.
If that's not the scenario though, please give us more information.
来源：https://stackoverflow.com/questions/48338609/can-you-stop-pycharm-from-automatically-closing-script-files-when-you-click-out