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Created on 2018-10-03 10:34 by Tim Hutt, last changed 2022-04-11 14:59 by admin. This issue is now closed.
| Messages (3) | |||
|---|---|---|---|
| msg326962 - (view) | Author: Tim Hutt (Tim Hutt) | Date: 2018-10-03 10:34 | |
See this issue: https://bugs.llvm.org/show_bug.cgi?id=38974 Basically if you have a copy of Python 2 installed on OSX from brew (as well as the system Python 2), then when you run lldb (which links to the system Python 2), at some point Python gets confused and starts loading libraries from the brew version of Python 2. To reproduce: 1. Install Xcode. 2. `brew install python2` 3. Create some executable. 4. `lldb a.out` The output is: (lldb) target create "a.out" Traceback (most recent call last): File "<input>", line 1, in <module> File "/usr/local/Cellar/python@2/2.7.15_1/Frameworks/Python.framework/Versions/2.7/lib/python2.7/copy.py", line 52, in <module> import weakref File "/usr/local/Cellar/python@2/2.7.15_1/Frameworks/Python.framework/Versions/2.7/lib/python2.7/weakref.py", line 14, in <module> from _weakref import ( ImportError: cannot import name _remove_dead_weakref You can also run it like this: $ cp /usr/bin/lldb ~/lldb # Work around SIP $ DYLD_PRINT_LIBRARIES=1 ./lldb a.out And it gives the output below (note lines marked with *******). dyld: loaded: /Users/me/./lldb dyld: loaded: /usr/lib/libxcselect.dylib dyld: loaded: /usr/lib/libSystem.B.dylib dyld: loaded: /usr/lib/system/libcache.dylib dyld: loaded: /usr/lib/system/libcommonCrypto.dylib dyld: loaded: /usr/lib/system/libcompiler_rt.dylib dyld: loaded: /usr/lib/system/libcopyfile.dylib dyld: loaded: /usr/lib/system/libcorecrypto.dylib dyld: loaded: /usr/lib/system/libdispatch.dylib dyld: loaded: /usr/lib/system/libdyld.dylib dyld: loaded: /usr/lib/system/libkeymgr.dylib dyld: loaded: /usr/lib/system/liblaunch.dylib dyld: loaded: /usr/lib/system/libmacho.dylib dyld: loaded: /usr/lib/system/libquarantine.dylib dyld: loaded: /usr/lib/system/libremovefile.dylib dyld: loaded: /usr/lib/system/libsystem_asl.dylib dyld: loaded: /usr/lib/system/libsystem_blocks.dylib dyld: loaded: /usr/lib/system/libsystem_c.dylib dyld: loaded: /usr/lib/system/libsystem_configuration.dylib dyld: loaded: /usr/lib/system/libsystem_coreservices.dylib dyld: loaded: /usr/lib/system/libsystem_darwin.dylib dyld: loaded: /usr/lib/system/libsystem_dnssd.dylib dyld: loaded: /usr/lib/system/libsystem_info.dylib dyld: loaded: /usr/lib/system/libsystem_m.dylib dyld: loaded: /usr/lib/system/libsystem_malloc.dylib dyld: loaded: /usr/lib/system/libsystem_network.dylib dyld: loaded: /usr/lib/system/libsystem_networkextension.dylib dyld: loaded: /usr/lib/system/libsystem_notify.dylib dyld: loaded: /usr/lib/system/libsystem_sandbox.dylib dyld: loaded: /usr/lib/system/libsystem_secinit.dylib dyld: loaded: /usr/lib/system/libsystem_kernel.dylib dyld: loaded: /usr/lib/system/libsystem_platform.dylib dyld: loaded: /usr/lib/system/libsystem_pthread.dylib dyld: loaded: /usr/lib/system/libsystem_symptoms.dylib dyld: loaded: /usr/lib/system/libsystem_trace.dylib dyld: loaded: /usr/lib/system/libunwind.dylib dyld: loaded: /usr/lib/system/libxpc.dylib dyld: loaded: /usr/lib/closure/libclosured.dylib dyld: loaded: /usr/lib/libobjc.A.dylib dyld: loaded: /usr/lib/libc++abi.dylib dyld: loaded: /usr/lib/libc++.1.dylib dyld: loaded: /Applications/Xcode.app/Contents/Developer/usr/lib/libxcrun.dylib dyld: loaded: /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation dyld: loaded: /usr/lib/libDiagnosticMessagesClient.dylib dyld: loaded: /usr/lib/libicucore.A.dylib dyld: loaded: /usr/lib/libz.1.dylib dyld: loaded: /Applications/Xcode.app/Contents/Developer/usr/bin/lldb dyld: loaded: /usr/lib/libz.1.dylib dyld: loaded: /usr/lib/libcompression.dylib dyld: loaded: /usr/lib/libpanel.5.4.dylib dyld: loaded: /usr/lib/libncurses.5.4.dylib dyld: loaded: /Applications/Xcode.app/Contents/Developer/usr/bin/../../../SharedFrameworks/LLDB.framework/LLDB dyld: loaded: /usr/lib/libc++.1.dylib dyld: loaded: /usr/lib/libSystem.B.dylib dyld: loaded: /usr/lib/system/libcache.dylib dyld: loaded: /usr/lib/system/libcommonCrypto.dylib dyld: loaded: /usr/lib/system/libcompiler_rt.dylib dyld: loaded: /usr/lib/system/libcopyfile.dylib dyld: loaded: /usr/lib/system/libcorecrypto.dylib dyld: loaded: /usr/lib/system/libdispatch.dylib dyld: loaded: /usr/lib/system/libdyld.dylib dyld: loaded: /usr/lib/system/libkeymgr.dylib dyld: loaded: /usr/lib/system/liblaunch.dylib dyld: loaded: /usr/lib/system/libmacho.dylib dyld: loaded: /usr/lib/system/libquarantine.dylib dyld: loaded: /usr/lib/system/libremovefile.dylib dyld: loaded: /usr/lib/system/libsystem_asl.dylib dyld: loaded: /usr/lib/system/libsystem_blocks.dylib dyld: loaded: /usr/lib/system/libsystem_c.dylib dyld: loaded: /usr/lib/system/libsystem_configuration.dylib dyld: loaded: /usr/lib/system/libsystem_coreservices.dylib dyld: loaded: /usr/lib/system/libsystem_darwin.dylib dyld: loaded: /usr/lib/system/libsystem_dnssd.dylib dyld: loaded: /usr/lib/system/libsystem_info.dylib dyld: loaded: /usr/lib/system/libsystem_m.dylib dyld: loaded: /usr/lib/system/libsystem_malloc.dylib dyld: loaded: /usr/lib/system/libsystem_network.dylib dyld: loaded: /usr/lib/system/libsystem_networkextension.dylib dyld: loaded: /usr/lib/system/libsystem_notify.dylib dyld: loaded: /usr/lib/system/libsystem_sandbox.dylib dyld: loaded: /usr/lib/system/libsystem_secinit.dylib dyld: loaded: /usr/lib/system/libsystem_kernel.dylib dyld: loaded: /usr/lib/system/libsystem_platform.dylib dyld: loaded: /usr/lib/system/libsystem_pthread.dylib dyld: loaded: /usr/lib/system/libsystem_symptoms.dylib dyld: loaded: /usr/lib/system/libsystem_trace.dylib dyld: loaded: /usr/lib/system/libunwind.dylib dyld: loaded: /usr/lib/system/libxpc.dylib dyld: loaded: /usr/lib/closure/libclosured.dylib dyld: loaded: /usr/lib/libobjc.A.dylib dyld: loaded: /usr/lib/libc++abi.dylib dyld: loaded: /usr/lib/liblzma.5.dylib dyld: loaded: /System/Library/Frameworks/Python.framework/Versions/2.7/Python *********** dyld: loaded: /System/Library/Frameworks/Foundation.framework/Versions/C/Foundation dyld: loaded: /System/Library/PrivateFrameworks/DebugSymbols.framework/Versions/A/DebugSymbols dyld: loaded: /System/Library/Frameworks/Security.framework/Versions/A/Security dyld: loaded: /System/Library/Frameworks/CoreServices.framework/Versions/A/CoreServices dyld: loaded: /System/Library/Frameworks/ApplicationServices.framework/Versions/A/ApplicationServices dyld: loaded: /usr/lib/libedit.3.dylib dyld: loaded: /usr/lib/libxml2.2.dylib dyld: loaded: /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation dyld: loaded: /usr/lib/libauto.dylib dyld: loaded: /System/Library/Frameworks/DiskArbitration.framework/Versions/A/DiskArbitration dyld: loaded: /usr/lib/libarchive.2.dylib dyld: loaded: /usr/lib/libDiagnosticMessagesClient.dylib dyld: loaded: /usr/lib/libicucore.A.dylib dyld: loaded: /System/Library/Frameworks/CFNetwork.framework/Versions/A/CFNetwork dyld: loaded: /System/Library/Frameworks/SystemConfiguration.framework/Versions/A/SystemConfiguration dyld: loaded: /usr/lib/liblangid.dylib dyld: loaded: /System/Library/Frameworks/IOKit.framework/Versions/A/IOKit dyld: loaded: /usr/lib/libCRFSuite.dylib dyld: loaded: /usr/lib/libenergytrace.dylib dyld: loaded: /usr/lib/libbsm.0.dylib dyld: loaded: /usr/lib/system/libkxld.dylib dyld: loaded: /usr/lib/libOpenScriptingUtil.dylib dyld: loaded: /usr/lib/libcoretls.dylib dyld: loaded: /usr/lib/libcoretls_cfhelpers.dylib dyld: loaded: /usr/lib/libpam.2.dylib dyld: loaded: /usr/lib/libsqlite3.dylib dyld: loaded: /usr/lib/libxar.1.dylib dyld: loaded: /usr/lib/libbz2.1.0.dylib dyld: loaded: /usr/lib/libnetwork.dylib dyld: loaded: /usr/lib/libapple_nghttp2.dylib dyld: loaded: /usr/lib/libpcap.A.dylib dyld: loaded: /usr/lib/libboringssl.dylib dyld: loaded: /usr/lib/libusrtcp.dylib dyld: loaded: /usr/lib/libapple_crypto.dylib dyld: loaded: /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/FSEvents.framework/Versions/A/FSEvents dyld: loaded: /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/CarbonCore.framework/Versions/A/CarbonCore dyld: loaded: /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/Metadata.framework/Versions/A/Metadata dyld: loaded: /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/OSServices.framework/Versions/A/OSServices dyld: loaded: /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/SearchKit.framework/Versions/A/SearchKit dyld: loaded: /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/AE.framework/Versions/A/AE dyld: loaded: /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/LaunchServices.framework/Versions/A/LaunchServices dyld: loaded: /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/DictionaryServices.framework/Versions/A/DictionaryServices dyld: loaded: /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/SharedFileList.framework/Versions/A/SharedFileList dyld: loaded: /System/Library/Frameworks/NetFS.framework/Versions/A/NetFS dyld: loaded: /System/Library/PrivateFrameworks/NetAuth.framework/Versions/A/NetAuth dyld: loaded: /System/Library/PrivateFrameworks/login.framework/Versions/A/Frameworks/loginsupport.framework/Versions/A/loginsupport dyld: loaded: /System/Library/PrivateFrameworks/TCC.framework/Versions/A/TCC dyld: loaded: /usr/lib/libmecabra.dylib dyld: loaded: /System/Library/Frameworks/CoreGraphics.framework/Versions/A/CoreGraphics dyld: loaded: /System/Library/Frameworks/CoreText.framework/Versions/A/CoreText dyld: loaded: /System/Library/Frameworks/ImageIO.framework/Versions/A/ImageIO dyld: loaded: /System/Library/Frameworks/ColorSync.framework/Versions/A/ColorSync dyld: loaded: /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ATS.framework/Versions/A/ATS dyld: loaded: /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ColorSyncLegacy.framework/Versions/A/ColorSyncLegacy dyld: loaded: /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/HIServices.framework/Versions/A/HIServices dyld: loaded: /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/LangAnalysis.framework/Versions/A/LangAnalysis dyld: loaded: /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/PrintCore.framework/Versions/A/PrintCore dyld: loaded: /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/QD.framework/Versions/A/QD dyld: loaded: /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/SpeechSynthesis.framework/Versions/A/SpeechSynthesis dyld: loaded: /System/Library/PrivateFrameworks/SkyLight.framework/Versions/A/SkyLight dyld: loaded: /System/Library/Frameworks/Accelerate.framework/Versions/A/Accelerate dyld: loaded: /System/Library/Frameworks/CoreDisplay.framework/Versions/A/CoreDisplay dyld: loaded: /System/Library/Frameworks/IOSurface.framework/Versions/A/IOSurface dyld: loaded: /System/Library/Frameworks/Metal.framework/Versions/A/Metal dyld: loaded: /System/Library/PrivateFrameworks/MultitouchSupport.framework/Versions/A/MultitouchSupport dyld: loaded: /System/Library/Frameworks/QuartzCore.framework/Versions/A/QuartzCore dyld: loaded: /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vImage.framework/Versions/A/vImage dyld: loaded: /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/vecLib dyld: loaded: /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libvDSP.dylib dyld: loaded: /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libBNNS.dylib dyld: loaded: /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libQuadrature.dylib dyld: loaded: /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libvMisc.dylib dyld: loaded: /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libLAPACK.dylib dyld: loaded: /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libBLAS.dylib dyld: loaded: /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libLinearAlgebra.dylib dyld: loaded: /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libSparse.dylib dyld: loaded: /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libSparseBLAS.dylib dyld: loaded: /System/Library/PrivateFrameworks/GPUWrangler.framework/Versions/A/GPUWrangler dyld: loaded: /System/Library/PrivateFrameworks/IOAccelerator.framework/Versions/A/IOAccelerator dyld: loaded: /System/Library/PrivateFrameworks/IOPresentment.framework/Versions/A/IOPresentment dyld: loaded: /System/Library/PrivateFrameworks/DSExternalDisplay.framework/Versions/A/DSExternalDisplay dyld: loaded: /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libCoreFSCache.dylib dyld: loaded: /System/Library/Frameworks/CoreImage.framework/Versions/A/CoreImage dyld: loaded: /System/Library/Frameworks/CoreVideo.framework/Versions/A/CoreVideo dyld: loaded: /System/Library/Frameworks/OpenGL.framework/Versions/A/OpenGL dyld: loaded: /System/Library/PrivateFrameworks/GraphVisualizer.framework/Versions/A/GraphVisualizer dyld: loaded: /System/Library/Frameworks/MetalPerformanceShaders.framework/Versions/A/MetalPerformanceShaders dyld: loaded: /usr/lib/libFosl_dynamic.dylib dyld: loaded: /System/Library/PrivateFrameworks/FaceCore.framework/Versions/A/FaceCore dyld: loaded: /System/Library/Frameworks/OpenCL.framework/Versions/A/OpenCL dyld: loaded: /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ATS.framework/Versions/A/Resources/libFontParser.dylib dyld: loaded: /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ATS.framework/Versions/A/Resources/libFontRegistry.dylib dyld: loaded: /System/Library/Frameworks/ImageIO.framework/Versions/A/Resources/libJPEG.dylib dyld: loaded: /System/Library/Frameworks/ImageIO.framework/Versions/A/Resources/libTIFF.dylib dyld: loaded: /System/Library/Frameworks/ImageIO.framework/Versions/A/Resources/libPng.dylib dyld: loaded: /System/Library/Frameworks/ImageIO.framework/Versions/A/Resources/libGIF.dylib dyld: loaded: /System/Library/Frameworks/ImageIO.framework/Versions/A/Resources/libJP2.dylib dyld: loaded: /System/Library/Frameworks/ImageIO.framework/Versions/A/Resources/libRadiance.dylib dyld: loaded: /System/Library/PrivateFrameworks/AppleJPEG.framework/Versions/A/AppleJPEG dyld: loaded: /System/Library/Frameworks/MetalPerformanceShaders.framework/Frameworks/MPSCore.framework/Versions/A/MPSCore dyld: loaded: /System/Library/Frameworks/MetalPerformanceShaders.framework/Frameworks/MPSImage.framework/Versions/A/MPSImage dyld: loaded: /System/Library/Frameworks/MetalPerformanceShaders.framework/Frameworks/MPSNeuralNetwork.framework/Versions/A/MPSNeuralNetwork dyld: loaded: /System/Library/Frameworks/MetalPerformanceShaders.framework/Frameworks/MPSMatrix.framework/Versions/A/MPSMatrix dyld: loaded: /System/Library/PrivateFrameworks/MetalTools.framework/Versions/A/MetalTools dyld: loaded: /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGLU.dylib dyld: loaded: /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGFXShared.dylib dyld: loaded: /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGL.dylib dyld: loaded: /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGLImage.dylib dyld: loaded: /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libCVMSPluginSupport.dylib dyld: loaded: /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libCoreVMClient.dylib dyld: loaded: /usr/lib/libcups.2.dylib dyld: loaded: /System/Library/Frameworks/Kerberos.framework/Versions/A/Kerberos dyld: loaded: /System/Library/Frameworks/GSS.framework/Versions/A/GSS dyld: loaded: /usr/lib/libresolv.9.dylib dyld: loaded: /usr/lib/libiconv.2.dylib dyld: loaded: /System/Library/PrivateFrameworks/Heimdal.framework/Versions/A/Heimdal dyld: loaded: /usr/lib/libheimdal-asn1.dylib dyld: loaded: /System/Library/Frameworks/OpenDirectory.framework/Versions/A/OpenDirectory dyld: loaded: /System/Library/PrivateFrameworks/CommonAuth.framework/Versions/A/CommonAuth dyld: loaded: /System/Library/Frameworks/OpenDirectory.framework/Versions/A/Frameworks/CFOpenDirectory.framework/Versions/A/CFOpenDirectory dyld: loaded: /System/Library/Frameworks/SecurityFoundation.framework/Versions/A/SecurityFoundation dyld: loaded: /System/Library/PrivateFrameworks/APFS.framework/Versions/A/APFS dyld: loaded: /usr/lib/libutil.dylib dyld: loaded: /System/Library/Frameworks/CoreAudio.framework/Versions/A/CoreAudio dyld: loaded: /System/Library/Frameworks/AudioToolbox.framework/Versions/A/AudioToolbox dyld: loaded: /System/Library/PrivateFrameworks/AppleSauce.framework/Versions/A/AppleSauce dyld: loaded: /System/Library/PrivateFrameworks/LinguisticData.framework/Versions/A/LinguisticData dyld: loaded: /usr/lib/libmarisa.dylib dyld: loaded: /System/Library/PrivateFrameworks/Lexicon.framework/Versions/A/Lexicon dyld: loaded: /usr/lib/libChineseTokenizer.dylib dyld: loaded: /usr/lib/libcmph.dylib dyld: loaded: /System/Library/PrivateFrameworks/LanguageModeling.framework/Versions/A/LanguageModeling dyld: loaded: /System/Library/Frameworks/CoreData.framework/Versions/A/CoreData dyld: loaded: /System/Library/PrivateFrameworks/CoreEmoji.framework/Versions/A/CoreEmoji dyld: loaded: /System/Library/Frameworks/ServiceManagement.framework/Versions/A/ServiceManagement dyld: loaded: /System/Library/PrivateFrameworks/BackgroundTaskManagement.framework/Versions/A/BackgroundTaskManagement dyld: loaded: /usr/lib/libxslt.1.dylib (lldb) target create "d1/a.out" dyld: loaded: /usr/local/Cellar/python@2/2.7.15_1/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload/_locale.so ********* dyld: loaded: /usr/local/Cellar/python@2/2.7.15_1/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload/_ctypes.so dyld: unloaded: /usr/local/Cellar/python@2/2.7.15_1/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload/_ctypes.so dyld: loaded: /usr/local/Cellar/python@2/2.7.15_1/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload/_functools.so dyld: loaded: /usr/local/Cellar/python@2/2.7.15_1/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload/itertools.so dyld: loaded: /usr/local/Cellar/python@2/2.7.15_1/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload/operator.so dyld: loaded: /usr/local/Cellar/python@2/2.7.15_1/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload/readline.so dyld: loaded: /usr/local/opt/readline/lib/libreadline.7.dylib Traceback (most recent call last): File "<input>", line 1, in <module> File "/usr/local/Cellar/python@2/2.7.15_1/Frameworks/Python.framework/Versions/2.7/lib/python2.7/copy.py", line 52, in <module> import weakref File "/usr/local/Cellar/python@2/2.7.15_1/Frameworks/Python.framework/Versions/2.7/lib/python2.7/weakref.py", line 14, in <module> from _weakref import ( ImportError: cannot import name _remove_dead_weakref dyld: loaded: /usr/local/Cellar/python@2/2.7.15_1/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload/time.so dyld: loaded: /usr/local/Cellar/python@2/2.7.15_1/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload/datetime.so dyld: loaded: /usr/local/Cellar/python@2/2.7.15_1/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload/strop.so dyld: loaded: /usr/local/Cellar/python@2/2.7.15_1/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload/_collections.so dyld: loaded: /usr/local/Cellar/python@2/2.7.15_1/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload/_heapq.so dyld: loaded: /System/Library/PrivateFrameworks/CoreServicesInternal.framework/Versions/A/CoreServicesInternal |
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| msg327225 - (view) | Author: Ned Deily (ned.deily) *  |
Date: 2018-10-06 05:47 | |
Ugh! That's a messy one. Just for the record, the problem of searching other than the system Python images is reproducible with other distributions of Python, including the python.org Python 2.7 - so it is not limited to Homebrew. The key seems to be which "python" (or possibly "python2.7") is found first on $PATH. It also appears to not be limited to framework builds of Python; a non-framework build of 2.7 inserted first on $PATH also caused a failure. I took a quick look at how lldb apparently invokes python, following the link in the StackOverflow item referenced in the llvm bug tracker issue: http://llvm.org/svn/llvm-project/lldb/trunk/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.cpp and I'm not going to try to try to step through all that. Much of the magic that's involved in initializing Python search paths is in Modules/getpath.c. In it, you'll see that we do some magic using long deprecated macOS dyld APIs, namely NSModuleForSymbol, NSLookupAndBindSymbol, and NSLibraryNameForModule. It's quite possible that the behavior seen is due to how they search for symbols. One could try to track them down in the dyld sources found in https://opensource.apple.com. But now that I think of it, we have had an open issue (Issue15498) for a long time to avoid the use of those deprecated APIs and, lo and behold, one of the comments under it (msg173828) might very well be the key to what's going on here: "Apple seems to have switched to using dlopen in their version of getpath.c (see <http://www.opensource.apple.com/source/python/python-60.3/2.7/fix/getpath.c.ed>, this is the version in OSX 10.8.2) This causes a problem for some people, as noticed on the pythonmac mailing list. This is something we should test before applying my patch to avoid regressions. [...]" If so, the problem may have to be fixed by Apple in the system Python. Ronald undoubtedly has better insight into this. |
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| msg367384 - (view) | Author: Zachary Ware (zach.ware) * |
Date: 2020-04-27 04:05 | |
With 2.7 now at end-of-life, I'm closing this issue. Thanks for the report anyway, Tim! |
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| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022-04-11 14:59:06 | admin | set | github: 79065 |
| 2020-04-27 04:05:28 | zach.ware | set | status: open -> closed nosy: + zach.ware messages: + msg367384 resolution: out of date stage: resolved |
| 2018-10-06 05:47:32 | ned.deily | set | messages:
+ msg327225 components: - Library (Lib) title: Python loads incorrect libraries on MacOS, 2.7 -> Python may load incorrect libraries when embedding the macOS system python 2.7 |
| 2018-10-05 20:42:35 | terry.reedy | set | title: Python loads incorrect libraries -> Python loads incorrect libraries on MacOS, 2.7 |
| 2018-10-03 10:34:36 | Tim Hutt | create | |