ubuntu20.04安装joern-tools报错

安装joern-tools的最后一步：sudo python2 setup.py install 报如下错，但在复现的实验要用python2.7，该如何解决呢：
running install
running bdist_egg
running egg_info
writing requirements to joerntools.egg-info/requires.txt
writing joerntools.egg-info/PKG-INFO
writing top-level names to joerntools.egg-info/top_level.txt
writing dependency_links to joerntools.egg-info/dependency_links.txt
reading manifest file 'joerntools.egg-info/SOURCES.txt'
writing manifest file 'joerntools.egg-info/SOURCES.txt'
installing library code to build/bdist.linux-x86_64/egg
running install_lib
running build_py
creating build/bdist.linux-x86_64/egg
creating build/bdist.linux-x86_64/egg/joerntools
creating build/bdist.linux-x86_64/egg/joerntools/shelltool
copying build/lib.linux-x86_64-2.7/joerntools/shelltool/ChunkStartTool.py -> build/bdist.linux-x86_64/egg/joerntools/shelltool
copying build/lib.linux-x86_64-2.7/joerntools/shelltool/JoernTool.py -> build/bdist.linux-x86_64/egg/joerntools/shelltool
copying build/lib.linux-x86_64-2.7/joerntools/shelltool/AccTool.py -> build/bdist.linux-x86_64/egg/joerntools/shelltool
copying build/lib.linux-x86_64-2.7/joerntools/shelltool/CmdLineTool.py -> build/bdist.linux-x86_64/egg/joerntools/shelltool
copying build/lib.linux-x86_64-2.7/joerntools/shelltool/TraversalTool.py -> build/bdist.linux-x86_64/egg/joerntools/shelltool
copying build/lib.linux-x86_64-2.7/joerntools/shelltool/DemuxTool.py -> build/bdist.linux-x86_64/egg/joerntools/shelltool
copying build/lib.linux-x86_64-2.7/joerntools/shelltool/GraphvizTool.py -> build/bdist.linux-x86_64/egg/joerntools/shelltool
copying build/lib.linux-x86_64-2.7/joerntools/shelltool/init.py -> build/bdist.linux-x86_64/egg/joerntools/shelltool
copying build/lib.linux-x86_64-2.7/joerntools/shelltool/JoernHide.py -> build/bdist.linux-x86_64/egg/joerntools/shelltool
copying build/lib.linux-x86_64-2.7/joerntools/shelltool/LookupTool.py -> build/bdist.linux-x86_64/egg/joerntools/shelltool
copying build/lib.linux-x86_64-2.7/joerntools/shelltool/StartTool.py -> build/bdist.linux-x86_64/egg/joerntools/shelltool
copying build/lib.linux-x86_64-2.7/joerntools/shelltool/PipeTool.py -> build/bdist.linux-x86_64/egg/joerntools/shelltool
copying build/lib.linux-x86_64-2.7/joerntools/shelltool/JoernTag.py -> build/bdist.linux-x86_64/egg/joerntools/shelltool
copying build/lib.linux-x86_64-2.7/joerntools/DBInterface.py -> build/bdist.linux-x86_64/egg/joerntools
copying build/lib.linux-x86_64-2.7/joerntools/APIEmbedder.py -> build/bdist.linux-x86_64/egg/joerntools
copying build/lib.linux-x86_64-2.7/joerntools/KNN.py -> build/bdist.linux-x86_64/egg/joerntools
creating build/bdist.linux-x86_64/egg/joerntools/view
copying build/lib.linux-x86_64-2.7/joerntools/view/ParseLocationString.py -> build/bdist.linux-x86_64/egg/joerntools/view
copying build/lib.linux-x86_64-2.7/joerntools/view/init.py -> build/bdist.linux-x86_64/egg/joerntools/view
copying build/lib.linux-x86_64-2.7/joerntools/SimplifiedAPIEmbedder.py -> build/bdist.linux-x86_64/egg/joerntools
creating build/bdist.linux-x86_64/egg/joerntools/misc
copying build/lib.linux-x86_64-2.7/joerntools/misc/launch.py -> build/bdist.linux-x86_64/egg/joerntools/misc
copying build/lib.linux-x86_64-2.7/joerntools/misc/init.py -> build/bdist.linux-x86_64/egg/joerntools/misc
copying build/lib.linux-x86_64-2.7/joerntools/init.py -> build/bdist.linux-x86_64/egg/joerntools
creating build/bdist.linux-x86_64/egg/joerntools/mlutils
creating build/bdist.linux-x86_64/egg/joerntools/mlutils/sallyEmbedder
copying build/lib.linux-x86_64-2.7/joerntools/mlutils/sallyEmbedder/SallyBasedEmbedder.py -> build/bdist.linux-x86_64/egg/joerntools/mlutils/sallyEmbedder
copying build/lib.linux-x86_64-2.7/joerntools/mlutils/sallyEmbedder/SallyDataDirectoryCreator.py -> build/bdist.linux-x86_64/egg/joerntools/mlutils/sallyEmbedder
copying build/lib.linux-x86_64-2.7/joerntools/mlutils/sallyEmbedder/SallyDataStore.py -> build/bdist.linux-x86_64/egg/joerntools/mlutils/sallyEmbedder
copying build/lib.linux-x86_64-2.7/joerntools/mlutils/sallyEmbedder/init.py -> build/bdist.linux-x86_64/egg/joerntools/mlutils/sallyEmbedder
creating build/bdist.linux-x86_64/egg/joerntools/mlutils/pythonEmbedder
copying build/lib.linux-x86_64-2.7/joerntools/mlutils/pythonEmbedder/TermDocumentMatrix.py -> build/bdist.linux-x86_64/egg/joerntools/mlutils/pythonEmbedder
copying build/lib.linux-x86_64-2.7/joerntools/mlutils/pythonEmbedder/FeatureArray.py -> build/bdist.linux-x86_64/egg/joerntools/mlutils/pythonEmbedder
copying build/lib.linux-x86_64-2.7/joerntools/mlutils/pythonEmbedder/PythonEmbedder.py -> build/bdist.linux-x86_64/egg/joerntools/mlutils/pythonEmbedder
copying build/lib.linux-x86_64-2.7/joerntools/mlutils/pythonEmbedder/NameToDictMap.py -> build/bdist.linux-x86_64/egg/joerntools/mlutils/pythonEmbedder
copying build/lib.linux-x86_64-2.7/joerntools/mlutils/pythonEmbedder/init.py -> build/bdist.linux-x86_64/egg/joerntools/mlutils/pythonEmbedder
copying build/lib.linux-x86_64-2.7/joerntools/mlutils/pythonEmbedder/FeatureArrayToMatrix.py -> build/bdist.linux-x86_64/egg/joerntools/mlutils/pythonEmbedder
copying build/lib.linux-x86_64-2.7/joerntools/mlutils/pythonEmbedder/OccurrenceCounter.py -> build/bdist.linux-x86_64/egg/joerntools/mlutils/pythonEmbedder
copying build/lib.linux-x86_64-2.7/joerntools/mlutils/MLDataDirCreator.py -> build/bdist.linux-x86_64/egg/joerntools/mlutils
copying build/lib.linux-x86_64-2.7/joerntools/mlutils/init.py -> build/bdist.linux-x86_64/egg/joerntools/mlutils
copying build/lib.linux-x86_64-2.7/joerntools/mlutils/EmbeddingLoader.py -> build/bdist.linux-x86_64/egg/joerntools/mlutils
creating build/bdist.linux-x86_64/egg/joerntools/mlutils/regexGen
copying build/lib.linux-x86_64-2.7/joerntools/mlutils/regexGen/StringSetToRegex.py -> build/bdist.linux-x86_64/egg/joerntools/mlutils/regexGen
copying build/lib.linux-x86_64-2.7/joerntools/mlutils/regexGen/GapStringExtractor.py -> build/bdist.linux-x86_64/egg/joerntools/mlutils/regexGen
copying build/lib.linux-x86_64-2.7/joerntools/mlutils/regexGen/TokenExtractor.py -> build/bdist.linux-x86_64/egg/joerntools/mlutils/regexGen
copying build/lib.linux-x86_64-2.7/joerntools/mlutils/regexGen/init.py -> build/bdist.linux-x86_64/egg/joerntools/mlutils/regexGen
copying build/lib.linux-x86_64-2.7/joerntools/mlutils/regexGen/TokenAndGapSeq.py -> build/bdist.linux-x86_64/egg/joerntools/mlutils/regexGen
copying build/lib.linux-x86_64-2.7/joerntools/mlutils/Embedding.py -> build/bdist.linux-x86_64/egg/joerntools/mlutils
copying build/lib.linux-x86_64-2.7/joerntools/mlutils/MLDataDir.py -> build/bdist.linux-x86_64/egg/joerntools/mlutils
creating build/bdist.linux-x86_64/egg/joerntools/steps
copying build/lib.linux-x86_64-2.7/joerntools/steps/steps.groovy -> build/bdist.linux-x86_64/egg/joerntools/steps
copying build/lib.linux-x86_64-2.7/joerntools/steps/slice.groovy -> build/bdist.linux-x86_64/egg/joerntools/steps
creating build/bdist.linux-x86_64/egg/joerntools/csvAST
copying build/lib.linux-x86_64-2.7/joerntools/csvAST/PythonASTTreeNode.py -> build/bdist.linux-x86_64/egg/joerntools/csvAST
copying build/lib.linux-x86_64-2.7/joerntools/csvAST/CSVProcessor.py -> build/bdist.linux-x86_64/egg/joerntools/csvAST
copying build/lib.linux-x86_64-2.7/joerntools/csvAST/CSVRowAccessors.py -> build/bdist.linux-x86_64/egg/joerntools/csvAST
copying build/lib.linux-x86_64-2.7/joerntools/csvAST/CSVToPythonAST.py -> build/bdist.linux-x86_64/egg/joerntools/csvAST
copying build/lib.linux-x86_64-2.7/joerntools/csvAST/init.py -> build/bdist.linux-x86_64/egg/joerntools/csvAST
copying build/lib.linux-x86_64-2.7/joerntools/csvAST/PythonASTToPrunedAST.py -> build/bdist.linux-x86_64/egg/joerntools/csvAST
copying build/lib.linux-x86_64-2.7/joerntools/csvAST/ASTPrinter.py -> build/bdist.linux-x86_64/egg/joerntools/csvAST
copying build/lib.linux-x86_64-2.7/joerntools/csvAST/PythonASTProcessor.py -> build/bdist.linux-x86_64/egg/joerntools/csvAST
byte-compiling build/bdist.linux-x86_64/egg/joerntools/shelltool/ChunkStartTool.py to ChunkStartTool.pyc
byte-compiling build/bdist.linux-x86_64/egg/joerntools/shelltool/JoernTool.py to JoernTool.pyc
byte-compiling build/bdist.linux-x86_64/egg/joerntools/shelltool/AccTool.py to AccTool.pyc
byte-compiling build/bdist.linux-x86_64/egg/joerntools/shelltool/CmdLineTool.py to CmdLineTool.pyc
byte-compiling build/bdist.linux-x86_64/egg/joerntools/shelltool/TraversalTool.py to TraversalTool.pyc
byte-compiling build/bdist.linux-x86_64/egg/joerntools/shelltool/DemuxTool.py to DemuxTool.pyc
byte-compiling build/bdist.linux-x86_64/egg/joerntools/shelltool/GraphvizTool.py to GraphvizTool.pyc
byte-compiling build/bdist.linux-x86_64/egg/joerntools/shelltool/init.py to init.pyc
byte-compiling build/bdist.linux-x86_64/egg/joerntools/shelltool/JoernHide.py to JoernHide.pyc
byte-compiling build/bdist.linux-x86_64/egg/joerntools/shelltool/LookupTool.py to LookupTool.pyc
byte-compiling build/bdist.linux-x86_64/egg/joerntools/shelltool/StartTool.py to StartTool.pyc
byte-compiling build/bdist.linux-x86_64/egg/joerntools/shelltool/PipeTool.py to PipeTool.pyc
byte-compiling build/bdist.linux-x86_64/egg/joerntools/shelltool/JoernTag.py to JoernTag.pyc
byte-compiling build/bdist.linux-x86_64/egg/joerntools/DBInterface.py to DBInterface.pyc
byte-compiling build/bdist.linux-x86_64/egg/joerntools/APIEmbedder.py to APIEmbedder.pyc
byte-compiling build/bdist.linux-x86_64/egg/joerntools/KNN.py to KNN.pyc
byte-compiling build/bdist.linux-x86_64/egg/joerntools/view/ParseLocationString.py to ParseLocationString.pyc
byte-compiling build/bdist.linux-x86_64/egg/joerntools/view/init.py to init.pyc
byte-compiling build/bdist.linux-x86_64/egg/joerntools/SimplifiedAPIEmbedder.py to SimplifiedAPIEmbedder.pyc
byte-compiling build/bdist.linux-x86_64/egg/joerntools/misc/launch.py to launch.pyc
byte-compiling build/bdist.linux-x86_64/egg/joerntools/misc/init.py to init.pyc
byte-compiling build/bdist.linux-x86_64/egg/joerntools/init.py to init.pyc
byte-compiling build/bdist.linux-x86_64/egg/joerntools/mlutils/sallyEmbedder/SallyBasedEmbedder.py to SallyBasedEmbedder.pyc
byte-compiling build/bdist.linux-x86_64/egg/joerntools/mlutils/sallyEmbedder/SallyDataDirectoryCreator.py to SallyDataDirectoryCreator.pyc
byte-compiling build/bdist.linux-x86_64/egg/joerntools/mlutils/sallyEmbedder/SallyDataStore.py to SallyDataStore.pyc
byte-compiling build/bdist.linux-x86_64/egg/joerntools/mlutils/sallyEmbedder/init.py to init.pyc
byte-compiling build/bdist.linux-x86_64/egg/joerntools/mlutils/pythonEmbedder/TermDocumentMatrix.py to TermDocumentMatrix.pyc
byte-compiling build/bdist.linux-x86_64/egg/joerntools/mlutils/pythonEmbedder/FeatureArray.py to FeatureArray.pyc
byte-compiling build/bdist.linux-x86_64/egg/joerntools/mlutils/pythonEmbedder/PythonEmbedder.py to PythonEmbedder.pyc
byte-compiling build/bdist.linux-x86_64/egg/joerntools/mlutils/pythonEmbedder/NameToDictMap.py to NameToDictMap.pyc
byte-compiling build/bdist.linux-x86_64/egg/joerntools/mlutils/pythonEmbedder/init.py to init.pyc
byte-compiling build/bdist.linux-x86_64/egg/joerntools/mlutils/pythonEmbedder/FeatureArrayToMatrix.py to FeatureArrayToMatrix.pyc
byte-compiling build/bdist.linux-x86_64/egg/joerntools/mlutils/pythonEmbedder/OccurrenceCounter.py to OccurrenceCounter.pyc
byte-compiling build/bdist.linux-x86_64/egg/joerntools/mlutils/MLDataDirCreator.py to MLDataDirCreator.pyc
byte-compiling build/bdist.linux-x86_64/egg/joerntools/mlutils/init.py to init.pyc
byte-compiling build/bdist.linux-x86_64/egg/joerntools/mlutils/EmbeddingLoader.py to EmbeddingLoader.pyc
byte-compiling build/bdist.linux-x86_64/egg/joerntools/mlutils/regexGen/StringSetToRegex.py to StringSetToRegex.pyc
byte-compiling build/bdist.linux-x86_64/egg/joerntools/mlutils/regexGen/GapStringExtractor.py to GapStringExtractor.pyc
byte-compiling build/bdist.linux-x86_64/egg/joerntools/mlutils/regexGen/TokenExtractor.py to TokenExtractor.pyc
byte-compiling build/bdist.linux-x86_64/egg/joerntools/mlutils/regexGen/init.py to init.pyc
byte-compiling build/bdist.linux-x86_64/egg/joerntools/mlutils/regexGen/TokenAndGapSeq.py to TokenAndGapSeq.pyc
byte-compiling build/bdist.linux-x86_64/egg/joerntools/mlutils/Embedding.py to Embedding.pyc
byte-compiling build/bdist.linux-x86_64/egg/joerntools/mlutils/MLDataDir.py to MLDataDir.pyc
byte-compiling build/bdist.linux-x86_64/egg/joerntools/csvAST/PythonASTTreeNode.py to PythonASTTreeNode.pyc
byte-compiling build/bdist.linux-x86_64/egg/joerntools/csvAST/CSVProcessor.py to CSVProcessor.pyc
byte-compiling build/bdist.linux-x86_64/egg/joerntools/csvAST/CSVRowAccessors.py to CSVRowAccessors.pyc
byte-compiling build/bdist.linux-x86_64/egg/joerntools/csvAST/CSVToPythonAST.py to CSVToPythonAST.pyc
byte-compiling build/bdist.linux-x86_64/egg/joerntools/csvAST/init.py to init.pyc
byte-compiling build/bdist.linux-x86_64/egg/joerntools/csvAST/PythonASTToPrunedAST.py to PythonASTToPrunedAST.pyc
byte-compiling build/bdist.linux-x86_64/egg/joerntools/csvAST/ASTPrinter.py to ASTPrinter.pyc
byte-compiling build/bdist.linux-x86_64/egg/joerntools/csvAST/PythonASTProcessor.py to PythonASTProcessor.pyc
creating build/bdist.linux-x86_64/egg/EGG-INFO
installing scripts to build/bdist.linux-x86_64/egg/EGG-INFO/scripts
running install_scripts
running build_scripts
creating build/bdist.linux-x86_64/egg/EGG-INFO/scripts
copying build/scripts-2.7/joern-cluster -> build/bdist.linux-x86_64/egg/EGG-INFO/scripts
copying build/scripts-2.7/joern-slice -> build/bdist.linux-x86_64/egg/EGG-INFO/scripts
copying build/scripts-2.7/joern-ast2features -> build/bdist.linux-x86_64/egg/EGG-INFO/scripts
copying build/scripts-2.7/joern-list-funcs -> build/bdist.linux-x86_64/egg/EGG-INFO/scripts
copying build/scripts-2.7/joern-knn -> build/bdist.linux-x86_64/egg/EGG-INFO/scripts
copying build/scripts-2.7/joern-stmt-embedder -> build/bdist.linux-x86_64/egg/EGG-INFO/scripts
copying build/scripts-2.7/joern-location -> build/bdist.linux-x86_64/egg/EGG-INFO/scripts
copying build/scripts-2.7/joern-console -> build/bdist.linux-x86_64/egg/EGG-INFO/scripts
copying build/scripts-2.7/joern-demux -> build/bdist.linux-x86_64/egg/EGG-INFO/scripts
copying build/scripts-2.7/joern-hide -> build/bdist.linux-x86_64/egg/EGG-INFO/scripts
copying build/scripts-2.7/joern-plot-slice -> build/bdist.linux-x86_64/egg/EGG-INFO/scripts
copying build/scripts-2.7/joern-stream-apiembedder -> build/bdist.linux-x86_64/egg/EGG-INFO/scripts
copying build/scripts-2.7/joern-list-files -> build/bdist.linux-x86_64/egg/EGG-INFO/scripts
copying build/scripts-2.7/joern-plot-ast -> build/bdist.linux-x86_64/egg/EGG-INFO/scripts
copying build/scripts-2.7/joern-unhide -> build/bdist.linux-x86_64/egg/EGG-INFO/scripts
copying build/scripts-2.7/joern-tag -> build/bdist.linux-x86_64/egg/EGG-INFO/scripts
copying build/scripts-2.7/joern-edge -> build/bdist.linux-x86_64/egg/EGG-INFO/scripts
copying build/scripts-2.7/joern-lookup -> build/bdist.linux-x86_64/egg/EGG-INFO/scripts
copying build/scripts-2.7/joern-regex -> build/bdist.linux-x86_64/egg/EGG-INFO/scripts
copying build/scripts-2.7/joern-editor -> build/bdist.linux-x86_64/egg/EGG-INFO/scripts
copying build/scripts-2.7/joern-code -> build/bdist.linux-x86_64/egg/EGG-INFO/scripts
copying build/scripts-2.7/joern-astlabel -> build/bdist.linux-x86_64/egg/EGG-INFO/scripts
copying build/scripts-2.7/joern-transform -> build/bdist.linux-x86_64/egg/EGG-INFO/scripts
copying build/scripts-2.7/joern-plot-proggraph -> build/bdist.linux-x86_64/egg/EGG-INFO/scripts
copying build/scripts-2.7/joern-apiembedder -> build/bdist.linux-x86_64/egg/EGG-INFO/scripts
changing mode of build/bdist.linux-x86_64/egg/EGG-INFO/scripts/joern-cluster to 755
changing mode of build/bdist.linux-x86_64/egg/EGG-INFO/scripts/joern-slice to 755
changing mode of build/bdist.linux-x86_64/egg/EGG-INFO/scripts/joern-ast2features to 755
changing mode of build/bdist.linux-x86_64/egg/EGG-INFO/scripts/joern-list-funcs to 755
changing mode of build/bdist.linux-x86_64/egg/EGG-INFO/scripts/joern-knn to 755
changing mode of build/bdist.linux-x86_64/egg/EGG-INFO/scripts/joern-stmt-embedder to 755
changing mode of build/bdist.linux-x86_64/egg/EGG-INFO/scripts/joern-location to 755
changing mode of build/bdist.linux-x86_64/egg/EGG-INFO/scripts/joern-console to 755
changing mode of build/bdist.linux-x86_64/egg/EGG-INFO/scripts/joern-demux to 755
changing mode of build/bdist.linux-x86_64/egg/EGG-INFO/scripts/joern-hide to 775
changing mode of build/bdist.linux-x86_64/egg/EGG-INFO/scripts/joern-plot-slice to 755
changing mode of build/bdist.linux-x86_64/egg/EGG-INFO/scripts/joern-stream-apiembedder to 755
changing mode of build/bdist.linux-x86_64/egg/EGG-INFO/scripts/joern-list-files to 755
changing mode of build/bdist.linux-x86_64/egg/EGG-INFO/scripts/joern-plot-ast to 755
changing mode of build/bdist.linux-x86_64/egg/EGG-INFO/scripts/joern-unhide to 775
changing mode of build/bdist.linux-x86_64/egg/EGG-INFO/scripts/joern-tag to 775
changing mode of build/bdist.linux-x86_64/egg/EGG-INFO/scripts/joern-edge to 755
changing mode of build/bdist.linux-x86_64/egg/EGG-INFO/scripts/joern-lookup to 755
changing mode of build/bdist.linux-x86_64/egg/EGG-INFO/scripts/joern-regex to 755
changing mode of build/bdist.linux-x86_64/egg/EGG-INFO/scripts/joern-editor to 755
changing mode of build/bdist.linux-x86_64/egg/EGG-INFO/scripts/joern-code to 755
changing mode of build/bdist.linux-x86_64/egg/EGG-INFO/scripts/joern-astlabel to 755
changing mode of build/bdist.linux-x86_64/egg/EGG-INFO/scripts/joern-transform to 755
changing mode of build/bdist.linux-x86_64/egg/EGG-INFO/scripts/joern-plot-proggraph to 755
changing mode of build/bdist.linux-x86_64/egg/EGG-INFO/scripts/joern-apiembedder to 755
copying joerntools.egg-info/PKG-INFO -> build/bdist.linux-x86_64/egg/EGG-INFO
copying joerntools.egg-info/SOURCES.txt -> build/bdist.linux-x86_64/egg/EGG-INFO
copying joerntools.egg-info/dependency_links.txt -> build/bdist.linux-x86_64/egg/EGG-INFO
copying joerntools.egg-info/not-zip-safe -> build/bdist.linux-x86_64/egg/EGG-INFO
copying joerntools.egg-info/requires.txt -> build/bdist.linux-x86_64/egg/EGG-INFO
copying joerntools.egg-info/top_level.txt -> build/bdist.linux-x86_64/egg/EGG-INFO
creating 'dist/joerntools-0.1-py2.7.egg' and adding 'build/bdist.linux-x86_64/egg' to it
removing 'build/bdist.linux-x86_64/egg' (and everything under it)
Processing joerntools-0.1-py2.7.egg
removing '/usr/local/lib/python2.7/dist-packages/joerntools-0.1-py2.7.egg' (and everything under it)
creating /usr/local/lib/python2.7/dist-packages/joerntools-0.1-py2.7.egg
Extracting joerntools-0.1-py2.7.egg to /usr/local/lib/python2.7/dist-packages
joerntools 0.1 is already the active version in easy-install.pth
Installing joern-cluster script to /usr/local/bin
Installing joern-slice script to /usr/local/bin
Installing joern-ast2features script to /usr/local/bin
Installing joern-list-funcs script to /usr/local/bin
Installing joern-knn script to /usr/local/bin
Installing joern-stmt-embedder script to /usr/local/bin
Installing joern-location script to /usr/local/bin
Installing joern-console script to /usr/local/bin
Installing joern-demux script to /usr/local/bin
Installing joern-hide script to /usr/local/bin
Installing joern-plot-slice script to /usr/local/bin
Installing joern-stream-apiembedder script to /usr/local/bin
Installing joern-list-files script to /usr/local/bin
Installing joern-plot-ast script to /usr/local/bin
Installing joern-unhide script to /usr/local/bin
Installing joern-tag script to /usr/local/bin
Installing joern-edge script to /usr/local/bin
Installing joern-lookup script to /usr/local/bin
Installing joern-regex script to /usr/local/bin
Installing joern-editor script to /usr/local/bin
Installing joern-code script to /usr/local/bin
Installing joern-astlabel script to /usr/local/bin
Installing joern-transform script to /usr/local/bin
Installing joern-plot-proggraph script to /usr/local/bin
Installing joern-apiembedder script to /usr/local/bin

Installed /usr/local/lib/python2.7/dist-packages/joerntools-0.1-py2.7.egg
Processing dependencies for joerntools==0.1
Searching for chardet
Reading https://pypi.python.org/simple/chardet/
Downloading https://files.pythonhosted.org/packages/f3/0d/f7b6ab21ec75897ed80c17d79b15951a719226b9fababf1e40ea74d69079/chardet-5.2.0.tar.gz#sha256=1b3b6ff479a8c414bc3fa2c0852995695c4a026dcd6d0633b2dd092ca39c1cf7
Best match: chardet 5.2.0
Processing chardet-5.2.0.tar.gz
error: Couldn't find a setup script in /tmp/easy_install-j7UDqH/chardet-5.2.0.tar.gz

py2都已经停止维护咯，你可以试一下清除缓存然后重新安装一下，再不行就手动下载，然后再安装
wget https://files.pythonhosted.org/packages/source/c/chardet/chardet-5.2.0.tar.gz -P /tmp/

# 可能是因为您的系统默认使用的 Python 版本不是 2.7 版本导致的。您可以尝试使用以下命令来指定使用 Python2.7 运行该命令：
sudo python2.7 setup.py install

【以下回答由 GPT 生成】

答案

要解决在Ubuntu 20.04上安装joern-tools报错的问题，可以尝试以下步骤：

首先，确认你已经在系统上安装了Python 2.7。在终端中输入以下命令来检查Python 2.7是否已经安装：

shell python2.7 --version

如果没有安装，你可以通过以下命令来安装Python 2.7：

shell sudo apt update sudo apt install python2.7

安装完成后，再次运行上述命令来确保Python 2.7已经正确安装。

确定你已经安装了pip，并且pip对应的是Python 2.7版本。在终端中输入以下命令来检查pip是否已经安装：

shell pip2 --version

如果没有安装pip，你可以使用以下命令来安装：

shell sudo apt install python-pip

安装完成后，再次运行上述命令来确保pip已经正确安装。

接下来，确保你已经下载并解压了joern-tools的安装包。进入到安装包的目录，并找到其中的setup.py文件。
执行以下命令来安装joern-tools：

shell sudo python2 setup.py install

如果报错提示缺少依赖包，你可以使用以下命令来安装缺少的依赖包：

shell sudo apt install <dependency_package_name>

请根据实际报错信息中提到的依赖包名称进行安装。

如果执行命令后仍然遇到问题，请提供详细的报错信息以便进一步诊断。

这些步骤应该可以帮助你在Ubuntu 20.04上安装joern-tools，并使用Python 2.7来复现实验。如果仍然遇到问题，请尽量提供更详细的错误信息，以便更好地帮助你解决。

如果你已经解决了该问题, 非常希望你能够分享一下解决方案, 写成博客, 将相关链接放在评论区, 以帮助更多的人 ^-^

引用皆我百晓生小程序回复内容作答：
报错信息提示找不到 /tmp/easy_install-j7UDqH/chardet-5.2.0.tar.gz 的安装脚本。这可能是由于在安装 joern-tools 的过程中，其依赖的 chardet 模块无法正确安装所导致的。

要解决这个问题，你可以尝试以下几个步骤：

确保已安装 Python 2.7：确保你的 Ubuntu 20.04 系统中已经安装了 Python 2.7。你可以通过在终端运行 python2.7 --version 命令来验证。
安装 chardet 模块：在终端中运行以下命令来单独安装 chardet 模块：
```
sudo apt-get install python-chardet
```
重新运行安装命令：在 joern-tools 的根目录中，使用 python2 来运行安装命令：
```
sudo python2 setup.py install
```

这样应该可以解决找不到 chardet 安装脚本的问题，并成功安装 joern-tools。

如果问题仍然存在，你可以尝试其他解决方案：

更新 pip 版本：在终端中运行以下命令以更新 pip 版本：
```
sudo pip install -U pip
```
安装 setuptools：确保已经安装了 setuptools，你可以在终端中运行以下命令进行安装：
```
sudo apt-get install python-setuptools
```
使用 virtualenv：创建一个新的 Python 2.7 虚拟环境，并在虚拟环境中尝试重新安装 joern-tools。

希望这些解决方案能够帮助你成功安装 joern-tools。如果问题仍然存在，请提供更多的错误信息，以便我们能够更准确地帮助你。

结合GPT给出回答如下请题主参考
这个错误可能是因为您的系统中没有安装Python 2.7。您可以通过以下步骤来安装Python 2.7：

打开终端，输入以下命令安装依赖：

sudo apt update
sudo apt install build-essential libssl-dev libffi-dev python-dev

下载Python 2.7：

wget https://www.python.org/ftp/python/2.7.18/Python-2.7.18.tgz

解压Python 2.7：
```
tar -xf Python-2.7.18.tgz
```

进入解压后的目录，并进行配置和安装：

cd Python-2.7.18
./configure --enable-optimizations
make
sudo make install

完成以上步骤后，您应该可以在系统中使用Python 2.7了。然后再重新运行安装joern-tools的最后一步：

sudo python2 setup.py install

Python 2.7 在2020年已经停止支持，建议您考虑升级到支持的Python版本，例如Python 3.x。如果您必须在Python 2.7中工作，可以尝试以下方法：

a. 使用虚拟环境：在您的项目中，使用virtualenv创建一个Python 2.7的虚拟环境，然后在该环境中进行安装。这可以防止与系统中的其他Python版本发生冲突。

b. 修改代码：如果可能，尝试修改joern-tools的代码以使其兼容Python 2.7和Python 3.x。

是网络问题吗？脚本没下载全。

joern安装的全过程
可以参考下

joern安装的全过程_ubuntu安装joern_蓝天2828的博客-CSDN博客 joern是一个代码分析工具，但是安装过程却极其繁琐，网上的教程也是乱七八糟，下面跟随博主一起来全面的了解和安装！_ubuntu安装joern

https://blog.csdn.net/lvbtale/article/details/130323441

题主，这个问题我来替你解决(参考结合AI智能、文心一言)，若有帮助，还望采纳，点击回答右侧采纳即可。

这个错误可能是因为 chardet-5.2.0.tar.gz 文件没有正确下载或损坏导致的。请尝试以下步骤来解决问题：

确保你的 Ubuntu 系统已经安装了 Python 和 pip 工具。
在终端中运行以下命令来升级 pip 工具：
```
sudo pip install --upgrade pip
```
然后安装 joern-tools：
```
sudo pip install joern-tools
```
如果仍然出现错误，请尝试删除 chardet-5.2.0.tar.gz 文件并重新安装：
```
sudo rm /tmp/easy_install-j7UDqH/chardet-5.2.0.tar.gz
sudo pip install joern-tools
```
如果以上步骤仍然无法解决问题，请检查你的网络连接是否正常，或者尝试更换下载源。

希望能帮助到你。

sudo apt-get install graphviz libgraphviz-dev sudo pip2 install pygraphviz

这个问题可能是由于Python 2.7已经不再被官方支持，一些库可能已经不再兼容Python 2.7。
为了解决这个问题，建议你升级到Python 3，因为Python 3是当前官方支持的版本，大多数库都已经兼容Python 3。

参考gpt
根据您提供的错误信息，看起来是在安装joern-tools时出现了问题。可能是因为您在Ubuntu 20.04上使用Python 2.7安装joern-tools，而Python 2.7在Ubuntu 20.04中已经不再默认安装。

以下是一些解决方案：

确保Python 2.7已安装：首先，请确保您的系统上已经安装了Python 2.7。您可以在终端中运行以下命令检查Python 2.7的安装情况：
```
python2.7 --version
```
如果没有安装Python 2.7，请使用以下命令安装：
```
sudo apt update
sudo apt install python2.7
```
使用Python虚拟环境：建议您在安装joern-tools之前创建一个Python 2.7的虚拟环境。这样可以确保joern-tools以及其依赖项在正确的Python版本下安装。您可以使用以下命令创建和激活虚拟环境：
```
sudo apt install virtualenv
virtualenv -p /usr/bin/python2.7 joern-env
source joern-env/bin/activate
```
安装joern-tools：在激活虚拟环境后，您可以再次尝试安装joern-tools。运行以下命令：
```
sudo python2 setup.py install
```
这应该会在Python 2.7的环境中正确安装joern-tools。

请注意，由于Python 2.7已经过时，某些依赖项可能无法在Ubuntu 20.04上正常工作。如果遇到其他错误，请提供更多的错误信息，以便我可以提供更具体的帮助。另外，建议您考虑迁移到Python 3.x，并查看是否有适用于Python 3.x的替代工具可用。

安装python2.7呀

安一下python2.7，又不影响你另一个python3

下wal库安装到python2.7