Yikes. I can’t run the testsuite on Linux (debian ? I think…). See below. I installed python3 by saying apt-get install python3 And indeed python3 --version Python 3.2.3 This is bad. Can anyone help? Simon PYTHON="python3" "python3" ../../driver/runtests.py -e ghc_compiler_always_flags="'-dcore-lint -dcmm-lint -no-user-package-db -rtsopts -fno-warn-missed-specialisations -fshow-warning-groups -dno-debug-output'" -e config.compiler_debugged=True -e ghc_with_native_codegen=1 -e config.have_vanilla=True -e config.have_dynamic=True -e config.have_profiling=False -e ghc_with_threaded_rts=1 -e ghc_with_dynamic_rts=1 -e config.have_interp=False -e config.unregisterised=False -e config.ghc_dynamic_by_default=False -e config.ghc_dynamic=False -e ghc_with_smp=1 -e ghc_with_llvm=0 -e windows=False -e darwin=False -e config.in_tree_compiler=True --threads=33 -e config.cleanup=True -e config.local=False --rootdir=. --configfile=../../config/ghc -e 'config.confdir="../../config"' -e 'config.platform="x86_64-unknown-linux"' -e 'config.os="linux"' -e 'config.arch="x86_64"' -e 'config.wordsize="64"' -e 'config.timeout=int() or config.timeout' -e 'config.exeext=""' -e 'config.top="/5playpen/simonpj/HEAD-4/testsuite"' --config 'compiler="/5playpen/simonpj/HEAD-4/inplace/test spaces/ghc-stage1"' --config 'ghc_pkg="/5playpen/simonpj/HEAD-4/inplace/test spaces/ghc-pkg"' --config 'haddock="/5playpen/simonpj/HEAD-4/inplace/test spaces/haddock"' --config 'hp2ps="/5playpen/simonpj/HEAD-4/inplace/test spaces/hp2ps"' --config 'hpc="/5playpen/simonpj/HEAD-4/inplace/test spaces/hpc"' --config 'gs="gs"' --config 'timeout_prog="../../timeout/install-inplace/bin/timeout"' -e "config.stage=1" --summary-file "../../../testsuite_summary_stage1.txt" --no-print-summary 1 \ \ \ \ \ \ -e config.speed="2" \ Traceback (most recent call last): File "../../driver/runtests.py", line 210, in <module> from testlib import * File "/home/simonpj/code/HEAD-4/testsuite/driver/testlib.py", line 1286 f.write(u':set prog ' + name + u'\n') ^ SyntaxError: invalid syntax