More administrivia -

go over git branch checkout programs

admin-tools/check-2.4-2.7-versions.sh

@@ -1,4 +1,5 @@
 #!/bin/bash
+set -e
 function finish {
   cd $owd
 }
@@ -25,3 +26,4 @@ for version in $PYVERSIONS; do
     fi
     echo === $version ===
 done
+finish

admin-tools/setup-python-2.4.sh

@@ -10,6 +10,10 @@ function checkout_version {
     return $?
 }
 
+function finish {
+  cd $owd
+}
+
 owd=$(pwd)
 bs=${BASH_SOURCE[0]}
 if [[ $0 == $bs ]] ; then
@@ -20,5 +24,5 @@ mydir=$(dirname $bs)
 fulldir=$(readlink -f $mydir)
 (cd $fulldir/.. && checkout_version python-spark && checkout_version python-xdis python-2.4-to-2.7 &&
       checkout_version python-uncompyle6)
-cd $owd
 rm -v */.python-version || true
+finish

admin-tools/setup-python-3.0.sh

@@ -1,4 +1,5 @@
 #!/bin/bash
+set -e
 PYTHON_VERSION=3.0.1
 pyenv local $PYTHON_VERSION
 
@@ -29,7 +30,7 @@ fulldir=$(readlink -f $mydir)
 cd $fulldir/..
 (cd $fulldir/.. && checkout_version python-spark master && checkout_version python-xdis &&
       checkout_version python-uncompyle6)
-cd $owd
-rm -v */.python-version || true
 
 git checkout python-3.0-to-3.2  && git pull && pyenv local $PYTHON_VERSION
+rm -v */.python-version || true
+finish

admin-tools/setup-python-3.3.sh

@@ -1,4 +1,5 @@
 #!/bin/bash
+set -e
 PYTHON_VERSION=3.3.7
 pyenv local $PYTHON_VERSION
 
@@ -28,8 +29,9 @@ mydir=$(dirname $bs)
 fulldir=$(readlink -f $mydir)
 cd $fulldir/..
 (cd $fulldir/.. && checkout_version python-spark master && checkout_version python-xdis &&
-      checkout_version python-uncompyle6)
-cd $owd
+     checkout_version python-uncompyle6)
 rm -v */.python-version || true
 
 git checkout python-3.3-to-3.5  && git pull && pyenv local $PYTHON_VERSION
+rm -v */.python-version || true
+finish