On my 64-bit Windows, the .exe for ghostscript is named gswin64c.exe. So it's perhaps good for the GhostscriptAPI object to look for it in addition to gswin32c.exe.
I made this tweak on my local copy of logo_formatter.py and everything seems to be working fine.
https://github.com/WebLogo/weblogo/blob/695e246e7d3800a1dfc3778d6f59b68c4b1d79c4/weblogo/logo_formatter.py#L248
On my 64-bit Windows, the .exe for ghostscript is named gswin64c.exe. So it's perhaps good for the
GhostscriptAPI
object to look for it in addition togswin32c.exe
.I made this tweak on my local copy of logo_formatter.py and everything seems to be working fine.