[Chimera-users] chimera on OS X 10.5

[Thomas Goddard]

Hi Mark,

   That is interesting.  So the Python Popen() routine also generates 
the warning on Mac OS 10.5.  That has nothing to do with Tcl/Tk and is a 
Python problem.

   I'd estimate that Tk 8.5 might be in the daily builds in 2-4 weeks. 
Greg Couch in our lab is working on it right now -- but there are some 
technical problems.

   In any case I think that writing the warning is not likely to be 
slowing your Chimera extension down.  Running "grep" will take much more 
time than writing a warning message to a log file.

	Tom


Mark Moll wrote:
 > Tom,
 >
 > My apologies. I think I have located the problem elsewhere. The
 > following lines are causing all the warning messages:
 >
 >         self.textArray.append(Popen(["grep", "-i", "^\ " + pdbid,
 > pdb2ecmap],
 >             stdout=PIPE).communicate()[0])
 >         self.textArray.append(Popen(["grep", "-i", "^" + pdbid, 
pdb2gomap],
 >             stdout=PIPE).communicate()[0])
 >
 > My plugin is based on ViewDock and the lines above are called many, many
 > times. I think I can find a workaround for this.
 >
 > On Apr 23, 2008, at 4:08 PM, Mark Moll wrote:
 >
 >> Hi Tom,
 >>
 >> Do you have an ETA on when the switch to 8.5 will appear in the daily
 >> snapshots? In the current state, users of my extension will think it's
 >> broken.
 >>
 >> On Apr 23, 2008, at 12:38 PM, Tom Goddard wrote:
 >>
 >>> Hi Mark,
 >>>
 >>> We have looked into the "process has forked" warning messages
 >>> produced by Chimera on Mac OS 10.5 and believe it is a bug in Tcl/Tk
 >>> as reported here:
 >>>
 >>> http://trac.macosforge.org/projects/macports/ticket/13081
 >>>
 >>> This bug report says it is fixed in Tcl/Tk 8.5. Chimera currently
 >>> uses Tcl/Tk 8.4 and we are in the process of upgrading to 8.5.
 >>>
 >>> We have not observed that the messages are so numerous that they
 >>> cause performance problems.
 >>>
 >>>  Tom
 >>>
 >>
 >> --
 >> Mark
 >>
 >>
 >