macOS 11.1 + Homebrew 2.6.2 + Python 3.9.1 = "IDLE" crash #86857
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Process: Python [3355] Date/Time: 2020-12-20 21:22:43.045 +0300 Time Awake Since Boot: 940 seconds System Integrity Protection: enabled Crashed Thread: 0 Dispatch queue: com.apple.main-thread Exception Type: EXC_CRASH (SIGABRT) Application Specific Information: Thread 0 Crashed:: Dispatch queue: com.apple.main-thread Thread 1: Thread 2: Thread 3: Thread 4: Thread 5: Thread 0 crashed with X86 Thread State (64-bit): Logical CPU: 0 Thread 0 instruction stream not available. Thread 0 last branch register state not available. Binary Images: External Modification Summary: VM Region Summary: REGION TYPE SIZE COUNT (non-coalesced) Model: MacBookAir9,1, BootROM 1554.60.15.0.0 (iBridge: 18.16.13030.0.0,0), 2 processors, Dual-Core Intel Core i3, 1,1 GHz, 8 GB, SMC |
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This is a 'ancient, buggy tcl/tk 8.5.9 on OS11' issue, not an IDLE issue. Only 8.6.10 has a chance with OS11, and even that is a bit flakey. But I have no issues so far running 3.9.1 and IDLE with the Universal2 OS11 build from python.org on Mohave. What happens if you run 'python3.9' on a command line? What about 'python 3.9 -c "import tkinter; tkinter.Tk()"'? Ned & Ronald: I expect we should close this as 3rd party (Apple, Active State (tcl/tk), and homebrew). Do either of you want to add anything? |
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This is the same sort of crash of a Homebrew Python as reported in bpo-42480 and the root cause is the same: the Homebrew recipe is allowing building and linking with the known faulty and deprecated Apple-provided system Tcl and Tk 8.5.9 frameworks. It needs to be modified to use a newer (8.6.x) version of Tcl and Tk. |
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petr@air-anastasia ~ % python3 -c "import tkinter; tkinter.Tk()" >>> tkinter.TclVersion
8.5
>>> tkinter.TkVersion
8.5petr@air-anastasia ~ % brew install tcl-tk ==> Downloading https://homebrew.bintray.com/bottles/tcl-tk-8.6.10.big_sur.bottl If you need to have tcl-tk first in your PATH run: For compilers to find tcl-tk you may need to set: ==> Summary I have tried to update tcl-tk with the homebrew, but in command line I see 8.5 |
You should check with the Homebrew project; we have no insight into or control over their packaging choices. Good luck! |
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Hi Ned, FX from Homebrew here. One of the reasons we a couple of years ago to stick with macOS system tcl-tk was that cpython's configure does not currently allow to build against our tcl-tk, which is not a framework but a simple Unix-style library build. We can definitely reconsider if you recommend a newer tcl-tk, but do you know if the build issues with non-framework tcl-tk have been fixed? |
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After checking, I can see the code in cpython's setup.py is still there. detect_tkinter_darwin will prefer the system's version over anything we can specific in our cflags or ldflags. This seems contrary to the advice above not to use macOS system Tcl/Tk. |
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If you are not using Tcl and Tk framework builds installed in /Library, you use the configure or make options: --with-tcltk-includes='-I...' to specify exactly where to find your versions of Tcl and Tk. See the comments in setup.py: def detect_tkinter_explicitly(self):
# Build _tkinter using explicit locations for Tcl/Tk.
#
# This is enabled when both arguments are given to ./configure:
#
# --with-tcltk-includes="-I/path/to/tclincludes \
# -I/path/to/tkincludes"
# --with-tcltk-libs="-L/path/to/tcllibs -ltclm.n \
# -L/path/to/tklibs -ltkm.n"
#
# These values can also be specified or overridden via make:
# make TCLTK_INCLUDES="..." TCLTK_LIBS="..."
#
# This can be useful for building and testing tkinter with multiple
# versions of Tcl/Tk. Note that a build of Tk depends on a particular
# build of Tcl so you need to specify both arguments and use care when
# overriding. |
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But we can override with --with-tcltk-includes and --with-tcltk-libs |
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Our messages crossed, thanks Ned for the help. Hopefully we'll be solving this in a way that benefit most users. |
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Guys, thank you all for joining the conversation! I don't understand what exactly should I do to fix this, but I have a lot to study through py4u and plenty of time before I will really need Python fixed. |
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To use tkinter and hence IDLE and turtle on macOS, get the Mac Python installer on python.org. |
I'd wait for a Homebrew recipe update. |
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