[issue38946] IDLE on macOS 10.15 Catalina does not open double-clicked files if app already launched
Terry J. Reedy
report at bugs.python.org
Wed May 20 02:46:51 EDT 2020
Terry J. Reedy <tjreedy at udel.edu> added the comment:
This is not really an IDLE issue; I only tagged it as such to make it easy for IDLE users to find. It might or not be a python-install Catalina-upgrade issue. It definitely is an Apple issue in that they care little for Python, nothing for tcl/tk, and released something that broke even 64-bit apps.
On my copy of Mohave, if x.py is open in IDLE, double clicking x.py in Finder does not open x.py in a new window. Rather, it raises the existing x.py window to the top and makes it the active window. This is what it should do.
IDLE File=>Open has a shortcut -- Command-O. Either opens a IDLE-specific Finder-like window. The main difference from the Finder-app window is that selections are guaranteed to open in IDLE regardless of Finder/system settings. And once you have a file open, File-open/Command-C opens the IDLE-Finder dialog in the directory containing that file, with that file highlighted and others listed. So I consider this superior to the OS File Manager. I also make great use of File=>Recent Files to open files.
Irv, file closing when you open another is a different issue from files not opening (but I don't know that a separate tracker issue would be useful). It seems crazy, and was not reported by anyone else yet, but I will believe it without a movie. Does this happen with IDLE's open dialog, or only with Finder itself? If the latter, use the former.
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<https://bugs.python.org/issue38946>
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