Cannot launch on Windows 7

[xieshudi]

Bug Report

Expected behavior:

Actual behavior:

Detailed steps to reproduce:

Fits involved in EFT format (Edit > To Clipboard > EFT):

Release or development git branch? Please note the release version or commit hash:

pyfa-v2.57.3-win

Operating system and version (eg: Windows 10, OS X 10.9, OS X 10.11, Ubuntu 16.10):

Windows 7

Other relevant information:

[xieshudi]

I can run v2.56.0 on my computer. But when I update to v2.57.3 ,it cannot run.

[mmxgqh]

Patch your system and python, it's not pyfa's problem.