diff --git a/docs/source/command_ref.rst b/docs/source/command_ref.rst
index f2e2f33..eadb850 100644
--- a/docs/source/command_ref.rst
+++ b/docs/source/command_ref.rst
@@ -465,36 +465,6 @@ for the environment.
 
 *Based on a contribution from James Bennett and Jannis Leidel.*
 
-.. _command-toggleglobalsitepackages:
-
-toggleglobalsitepackages
-------------------------
-
-Controls whether the active virtualenv will access the packages in the
-global Python ``site-packages`` directory.
-
-Syntax::
-
-    toggleglobalsitepackages [-q]
-
-Outputs the new state of the virtualenv. Use the ``-q`` switch to turn off all
-output.
-
-::
-
-    $ mkvirtualenv env1
-    New python executable in env1/bin/python
-    Installing setuptools.............................................
-    ..................................................................
-    ..................................................................
-    done.
-    (env1)$ toggleglobalsitepackages
-    Disabled global site-packages
-    (env1)$ toggleglobalsitepackages
-    Enabled global site-packages
-    (env1)$ toggleglobalsitepackages -q
-    (env1)$
-
 ============================
 Project Directory Management
 ============================
diff --git a/docs/source/developers.rst b/docs/source/developers.rst
index 83ce8e4..8de06e5 100644
--- a/docs/source/developers.rst
+++ b/docs/source/developers.rst
@@ -69,22 +69,29 @@ The test suite for virtualenvwrapper uses shunit2_ and tox_.  The
 shunit2 source is included in the ``tests`` directory, but tox must be
 installed separately (``pip install tox``).
 
-To run the tests under bash, zsh, and ksh for Python 2.7 through 3.6,
-run ``tox`` from the top level directory of the hg repository.
+To run the tests under bash and zsh for the default Python,
+run ``tox`` from the top level directory of the hg repository::
+
+  $ tox
 
 To run individual test scripts, use a command like::
 
-  $ tox tests/test_cd.sh
+  $ tox -- tests/test_cd.sh
 
 To run tests under a single version of Python, specify the appropriate
 environment when running tox::
 
-  $ tox -e py27
+  $ tox -e py311
 
 Combine the two modes to run specific tests with a single version of
 Python::
 
-  $ tox -e py27 tests/test_cd.sh
+  $ tox -e py311 -- tests/test_cd.sh
+
+To stop the test suite as soon as any test fails, use the `fast` tox
+target::
+
+  $ tox -e fast
 
 Add new tests by modifying an existing file or creating new script in
 the ``tests`` directory.
diff --git a/tests/run_tests b/tests/run_tests
index aa2e55c..68cb362 100755
--- a/tests/run_tests
+++ b/tests/run_tests
@@ -1,7 +1,7 @@
 # -*- mode: shell-script -*-
 #set -x
 
-envdir="$1"
+envdir="$(cd $1 && pwd)"
 shift
 scripts="$*"
 if [ -z "$scripts" ]
@@ -14,6 +14,9 @@ then
     fi
 fi
 
+# Override FAIL_FAST to true to exit as soon as any test fails
+FAIL_FAST=${FAIL_FAST:-false}
+
 # Force the tox virtualenv to be active.
 #
 # Since this script runs from within a separate shell created by tox,
@@ -33,7 +36,7 @@ export HOOK_VERBOSE_OPTION
 
 # Force virtualenvwrapper to use the python interpreter in the
 # tox-created virtualenv.
-VIRTUALENVWRAPPER_PYTHON="$envdir/bin/python"
+VIRTUALENVWRAPPER_PYTHON="$envdir/bin/python3"
 export VIRTUALENVWRAPPER_PYTHON
 
 # Clear any user settings for the hook directory or log directory
@@ -44,6 +47,7 @@ unset VIRTUALENVWRAPPER_VIRTUALENV_ARGS
 
 # Run the test scripts with a little formatting around them to make it
 # easier to find where each script output starts.
+RC=0
 for test_script in $scripts
 do
 
@@ -66,9 +70,14 @@ do
     echo
     SHUNIT_PARENT="$test_script"
     export SHUNIT_PARENT
-    $SHELL $test_shell_opts $test_script || exit 1
+    if ! $SHELL $test_shell_opts $test_script; then
+        RC=1
+        if $FAIL_FAST; then
+            exit $RC
+        fi
+    fi
     echo
 
 done
 
-exit 0
+exit $RC
diff --git a/tests/setup.sh b/tests/setup.sh
index a28d360..6e006fb 100755
--- a/tests/setup.sh
+++ b/tests/setup.sh
@@ -10,8 +10,3 @@ export WORKON_HOME=$(mktemp -d -t "WORKON_HOME.XXXX.$$")
 export PROJECT_HOME=$(mktemp -d -t "PROJECT_HOME.XXXX.$$")
 
 #unset HOOK_VERBOSE_OPTION
-
-# tox no longer exports these variables by default, so set them
-# ourselves to ensure the tests that rely on the values work
-export USER=$(id -u -n)
-export HOME=$(id -P | cut -f9 -d:)
diff --git a/tests/test_cp.sh b/tests/test_cp.sh
index fc93ec1..3bd9196 100755
--- a/tests/test_cp.sh
+++ b/tests/test_cp.sh
@@ -98,17 +98,6 @@ test_virtualenvwrapper_virtualenv_clone_variable () {
     assertTrue "VIRTUALENVWRAPPER_CLONE did not clone fake file" "[ -f $WORKON_HOME/destination/fake_virtualenv_clone_was_here ]"
 }
 
-test_source_relocatable () {
-    mkvirtualenv "source" >/dev/null 2>&1 
-    (cd tests/testpackage && python setup.py install) >/dev/null 2>&1
-    assertTrue "virtualenv --relocatable \"$WORKON_HOME/source\""
-    cpvirtualenv "source" "destination" >/dev/null 2>&1 
-    testscript="$(which testscript.py)"
-    assertTrue "Environment test script not the same as copy" "[ $WORKON_HOME/destination/bin/testscript.py -ef $testscript ]"
-    assertTrue virtualenvwrapper_verify_active_environment
-    assertSame "Wrong virtualenv name" "destination" $(basename "$VIRTUAL_ENV")
-}
-
 test_source_does_not_exist () {
     assertSame "Please provide a valid virtualenv to copy." "$(cpvirtualenv virtualenvthatdoesntexist foo)"
 }
@@ -148,33 +137,4 @@ GLOBAL postcpvirtualenv"
     rm -f "$WORKON_HOME/postmkvirtualenv"
 }
 
-test_no_site_packages () {
-    # See issue #102
-    mkvirtualenv "source" --no-site-packages >/dev/null 2>&1
-    cpvirtualenv "source" "destination" >/dev/null 2>&1 
-    ngsp_file="`virtualenvwrapper_get_site_packages_dir`/../no-global-site-packages.txt"
-    assertTrue "$ngsp_file does not exist in copied env" "[ -f \"$ngsp_file\" ]"
-}
-
-test_no_site_packages_default_args () {
-    # See issue #102
-    VIRTUALENVWRAPPER_VIRTUALENV_ARGS="--no-site-packages"
-    # With the argument, verify that they are not copied.
-    mkvirtualenv "source" >/dev/null 2>&1
-    cpvirtualenv "source" "destination" >/dev/null 2>&1 
-    ngsp_file="`virtualenvwrapper_get_site_packages_dir`/../no-global-site-packages.txt"
-    assertTrue "$ngsp_file does not exist" "[ -f \"$ngsp_file\" ]"
-    unset VIRTUALENVWRAPPER_VIRTUALENV_ARGS
-}
-
-test_no_site_packages_default_behavior () {
-    # See issue #102
-    # virtualenv 1.7 changed to make --no-site-packages the default
-    mkvirtualenv "source" >/dev/null 2>&1
-    cpvirtualenv "source" "destination" >/dev/null 2>&1 
-    ngsp_file="`virtualenvwrapper_get_site_packages_dir`/../no-global-site-packages.txt"
-    assertTrue "$ngsp_file does not exist in copied env" "[ -f \"$ngsp_file\" ]"
-}
-
 . "$test_dir/shunit2"
-
diff --git a/tests/test_lazy_loaded.sh b/tests/test_lazy_loaded.sh
index 46e4f58..9d217c2 100755
--- a/tests/test_lazy_loaded.sh
+++ b/tests/test_lazy_loaded.sh
@@ -64,10 +64,6 @@ test_lssitepackages_defined_normal() {
     function_defined_normal lssitepackages
 }
 
-test_toggleglobalsitepackages_defined_normal() {
-    function_defined_normal toggleglobalsitepackages
-}
-
 test_cpvirtualenv_defined_normal() {
     function_defined_normal cpvirtualenv
 }
diff --git a/tests/test_ls.sh b/tests/test_ls.sh
index 8d26b3a..25ceab2 100755
--- a/tests/test_ls.sh
+++ b/tests/test_ls.sh
@@ -27,8 +27,8 @@ test_get_site_packages_dir () {
 
 test_lssitepackages () {
     mkvirtualenv "lssitepackagestest" >/dev/null 2>&1
-    contents="$(lssitepackages)"    
-    assertTrue "did not find easy_install in site-packages" "echo $contents | grep -q easy_install"
+    contents="$(lssitepackages)"
+    assertTrue "did not find pip in site-packages: ${contents}" "echo $contents | grep -q pip"
     deactivate
 }
 
@@ -36,8 +36,8 @@ test_lssitepackages_space_in_name () {
     # Only test with leading and internal spaces. Directory names with trailing spaces are legal,
     # and work with virtualenv on OSX, but error out on Linux.
     mkvirtualenv " space lssitepackagestest" >/dev/null 2>&1
-    contents="$(lssitepackages)"    
-    assertTrue "did not find easy_install in site-packages" "echo $contents | grep -q easy_install"
+    contents="$(lssitepackages)"
+    assertTrue "did not find pip in site-packages: ${contents}" "echo $contents | grep -q pip"
     deactivate
 }
 
@@ -46,7 +46,7 @@ test_lssitepackages_add2virtualenv () {
     parent_dir=$(dirname $(pwd))
     base_dir=$(basename $(pwd))
     add2virtualenv "../$base_dir"
-    contents="$(lssitepackages)"    
+    contents="$(lssitepackages)"
     actual=$(echo $contents | grep $base_dir)
     expected=$(echo $contents)
     assertSame "$expected" "$actual"
diff --git a/tests/test_mktmpenv.sh b/tests/test_mktmpenv.sh
index c8989bc..6a1171d 100755
--- a/tests/test_mktmpenv.sh
+++ b/tests/test_mktmpenv.sh
@@ -43,9 +43,9 @@ test_mktmpenv_no_cd() {
 }
 
 test_mktmpenv_virtualenv_args() {
-    mktmpenv --no-site-packages >/dev/null 2>&1
-    ngsp_file="`virtualenvwrapper_get_site_packages_dir`/../no-global-site-packages.txt"
-    assertTrue "$ngsp_file does not exist" "[ -f \"$ngsp_file\" ]"
+    mktmpenv --without-pip >/dev/null 2>&1
+    contents="$(lssitepackages)"
+    assertFalse "found pip in site-packages: ${contents}" "echo $contents | grep -q pip"
 }
 
 test_deactivate() {
diff --git a/tests/test_mkvirtualenv.sh b/tests/test_mkvirtualenv.sh
index bbfd543..3c37dfe 100755
--- a/tests/test_mkvirtualenv.sh
+++ b/tests/test_mkvirtualenv.sh
@@ -104,23 +104,6 @@ test_no_workon_home () {
     WORKON_HOME="$old_home"
 }
 
-test_mkvirtualenv_sitepackages () {
-    # This part of the test is not reliable because
-    # creating a new virtualenv from inside the
-    # tox virtualenv inherits the setting from there.
-#     # Without the option, verify that site-packages are copied.
-# 	mkvirtualenv "with_sp" >/dev/null 2>&1
-#     ngsp_file="`virtualenvwrapper_get_site_packages_dir`/../no-global-site-packages.txt"
-#     assertFalse "$ngsp_file exists" "[ -f \"$ngsp_file\" ]"
-#     rmvirtualenv "env3"
-    
-    # With the argument, verify that they are not copied.
-    mkvirtualenv --no-site-packages "without_sp" >/dev/null 2>&1
-    ngsp_file="`virtualenvwrapper_get_site_packages_dir`/../no-global-site-packages.txt"
-    assertTrue "$ngsp_file does not exist" "[ -f \"$ngsp_file\" ]"
-    rmvirtualenv "env4" >/dev/null 2>&1
-}
-
 test_mkvirtualenv_hooks_system_site_packages () {
     # See issue #189
 
@@ -143,12 +126,14 @@ GLOBAL postmkvirtualenv"
 
 test_mkvirtualenv_args () {
     # See issue #102
-    VIRTUALENVWRAPPER_VIRTUALENV_ARGS="--no-site-packages"
+    VIRTUALENVWRAPPER_VIRTUALENV_ARGS="--without-pip"
     # With the argument, verify that they are not copied.
-    mkvirtualenv "without_sp2" >/dev/null 2>&1
-    ngsp_file="`virtualenvwrapper_get_site_packages_dir`/../no-global-site-packages.txt"
-    assertTrue "$ngsp_file does not exist" "[ -f \"$ngsp_file\" ]"
-    rmvirtualenv "env4" >/dev/null 2>&1
+    mkvirtualenv "without_pip" >/dev/null 2>&1
+    local RC=$?
+    assertTrue "mkvirtualenv failed" "[ $RC -eq 0 ]"
+    contents="$(lssitepackages)"
+    assertFalse "found pip in site-packages: ${contents}" "echo $contents | grep -q pip"
+    rmvirtualenv "without_pip" >/dev/null 2>&1
     unset VIRTUALENVWRAPPER_VIRTUALENV_ARGS
 }
 
diff --git a/tests/test_run_hook.sh b/tests/test_run_hook.sh
index 2d6983d..e1e8644 100755
--- a/tests/test_run_hook.sh
+++ b/tests/test_run_hook.sh
@@ -57,7 +57,7 @@ test_virtualenvwrapper_run_hook_permissions() {
     echo "echo run $@ >> \"$TMPDIR/catch_output\"" >> "$WORKON_HOME/prermvirtualenv"
     chmod 0444 "$WORKON_HOME/prermvirtualenv"
     touch "$TMPDIR/catch_output"
-    error=$(virtualenvwrapper_run_hook "pre_rmvirtualenv" "foo" 2>&1 | grep "could not run" | cut -f2- -d'[')
+    error=$(virtualenvwrapper_run_hook "pre_rmvirtualenv" "foo" 2>&1 | grep "could not run" | cut -f2- -d'[' | cut -f1 -d:)
     output=$(cat "$TMPDIR/catch_output")
     expected=""
     assertSame "$expected" "$output"
diff --git a/tests/test_tempfile.sh b/tests/test_tempfile.sh
index 9fb6b79..be1f89d 100755
--- a/tests/test_tempfile.sh
+++ b/tests/test_tempfile.sh
@@ -21,6 +21,11 @@ setUp () {
 }
 
 test_tempfile () {
+    if [ "$(uname)" = "Darwin" ]; then
+        # macOS doesn't seem to allow controlling where mktemp creates
+        # the output files
+        return 0
+    fi
     filename=$(virtualenvwrapper_tempfile hook)
     assertTrue "Filename is empty" "[ ! -z \"$filename\" ]"
     assertTrue "File doesn't exist" "[ -f \"$filename\" ]"
@@ -52,6 +57,11 @@ test_bad_mktemp() {
 }
 
 test_no_such_tmpdir () {
+    if [ "$(uname)" = "Darwin" ]; then
+        # macOS doesn't seem to allow controlling where mktemp creates
+        # the output files
+        return 0
+    fi
     old_tmpdir="$TMPDIR"
     export TMPDIR="$TMPDIR/does-not-exist"
     virtualenvwrapper_run_hook "initialize" >/dev/null 2>&1
@@ -61,6 +71,11 @@ test_no_such_tmpdir () {
 }
 
 test_tmpdir_not_writable () {
+    if [ "$(uname)" = "Darwin" ]; then
+        # macOS doesn't seem to allow controlling where mktemp creates
+        # the output files
+        return 0
+    fi
     old_tmpdir="$TMPDIR"
     export TMPDIR="$TMPDIR/cannot-write"
     mkdir "$TMPDIR"
diff --git a/tests/test_toggleglobalsitepackages.sh b/tests/test_toggleglobalsitepackages.sh
deleted file mode 100755
index c1d3d82..0000000
--- a/tests/test_toggleglobalsitepackages.sh
+++ /dev/null
@@ -1,43 +0,0 @@
-# -*- mode: shell-script -*-
-
-test_dir=$(cd $(dirname $0) && pwd)
-source "$test_dir/setup.sh"
-
-oneTimeSetUp() {
-    rm -rf "$WORKON_HOME"
-    mkdir -p "$WORKON_HOME"
-    source "$test_dir/../virtualenvwrapper.sh"
-}
-
-oneTimeTearDown() {
-    rm -rf "$WORKON_HOME"
-}
-
-setUp () {
-    echo
-}
-
-tearDown () {
-    deactivate >/dev/null 2>&1
-}
-
-test_toggleglobalsitepackages () {
-    mkvirtualenv --no-site-packages "test1"
-    ngsp_file=$(dirname "`virtualenvwrapper_get_site_packages_dir`")/no-global-site-packages.txt
-    assertTrue "$ngsp_file does not exist 1" "[ -f \"$ngsp_file\" ]"
-    toggleglobalsitepackages -q
-    assertFalse "$ngsp_file exists" "[ -f \"$ngsp_file\" ]"
-    toggleglobalsitepackages -q
-    assertTrue "$ngsp_file does not exist 2" "[ -f \"$ngsp_file\" ]"
-}
-
-test_toggleglobalsitepackages_quiet () {
-    mkvirtualenv --no-site-packages "test2"
-    assertEquals "Command output is not correct" "Enabled global site-packages" "`toggleglobalsitepackages`"
-    assertEquals "Command output is not correct" "Disabled global site-packages" "`toggleglobalsitepackages`"
-    
-    assertEquals "Command output is not correct" "" "`toggleglobalsitepackages -q`"
-    assertEquals "Command output is not correct" "" "`toggleglobalsitepackages -q`"
-}
-
-. "$test_dir/shunit2"
diff --git a/tests/test_wipeenv.sh b/tests/test_wipeenv.sh
index 2dbd9cf..9b8895c 100755
--- a/tests/test_wipeenv.sh
+++ b/tests/test_wipeenv.sh
@@ -32,10 +32,10 @@ test_wipeenv_pip_e () {
     mkvirtualenv "wipetest" >/dev/null 2>&1
     (cd tests/testpackage && pip install -e .) >/dev/null 2>&1
     before="$(pip freeze)"
-    assertTrue "testpackage not installed" "pip freeze | grep testpackage"
+    assertTrue "testpackage not installed: $before" "pip freeze | grep testpackage"
     wipeenv >/dev/null 2>&1
     after="$(pip freeze)"
-    assertFalse "testpackage still installed" "pip freeze | grep testpackage"
+    assertFalse "testpackage still installed: $after" "pip freeze | grep testpackage"
 }
 
 # test_wipeenv_pip_e_url () {
diff --git a/tox.ini b/tox.ini
index f8b2751..c97b5ef 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,10 +1,13 @@
 [tox]
-envlist = py27,py33,py34,py35,py36,zsh,ksh,style
+envlist = py,zsh,style
 
 [testenv]
 install_command = pip install -U {opts} {packages}
 commands = bash ./tests/run_tests {envdir} []
 deps = -rrequirements.txt
+pass_env =
+    HOME
+    USER
 setenv =
     TOXIC = true
     SHELL = /bin/bash
@@ -13,12 +16,17 @@ allowlist_externals =
     zsh
     ksh
 
+[testenv:fast]
+setenv =
+    TOXIC = true
+    SHELL = /bin/bash
+    FAIL_FAST = true
+
 [testenv:style]
 deps = flake8
 commands = flake8 virtualenvwrapper docs/source/conf.py
 
 [testenv:zsh]
-basepython=python2.7
 setenv =
   SHELL = /bin/zsh
   test_shell_opts = -o shwordsplit
diff --git a/virtualenvwrapper.sh b/virtualenvwrapper.sh
index edf0313..79def0d 100644
--- a/virtualenvwrapper.sh
+++ b/virtualenvwrapper.sh
@@ -948,22 +948,6 @@ function lssitepackages {
     fi
 }
 
-# Toggles the currently-active virtualenv between having and not having
-# access to the global site-packages.
-#:help:toggleglobalsitepackages: turn access to global site-packages on/off
-function toggleglobalsitepackages {
-    virtualenvwrapper_verify_workon_home || return 1
-    virtualenvwrapper_verify_active_environment || return 1
-    typeset no_global_site_packages_file="`virtualenvwrapper_get_site_packages_dir`/../no-global-site-packages.txt"
-    if [ -f $no_global_site_packages_file ]; then
-        rm $no_global_site_packages_file
-        [ "$1" = "-q" ] || echo "Enabled global site-packages"
-    else
-        touch $no_global_site_packages_file
-        [ "$1" = "-q" ] || echo "Disabled global site-packages"
-    fi
-}
-
 #:help:cpvirtualenv: duplicate the named virtualenv to make a new one
 function cpvirtualenv {
     virtualenvwrapper_verify_workon_home || return 1
@@ -1310,9 +1294,28 @@ function wipeenv {
     if [ -n "$(cat "$req_file")" ]
     then
         echo "Uninstalling packages:"
-        cat "$req_file"
         echo
-        pip uninstall -y $(cat "$req_file" | grep -v '^-f' | sed 's/>/=/g' | cut -f1 -d=)
+        while read line; do
+            typeset pkg=""
+            if [[ "$line" =~ ^-f ]]; then
+                # ignore lines starting -f which pip sometimes
+                # includes and that do not point to specific
+                # dependencies
+                continue
+            fi
+            if [[ "$line" =~ ^-e ]]; then
+                # fix lines pointing to editable packages, which look like:
+                # -e git+ssh://git@github.com/python-virtualenvwrapper/virtualenvwrapper.git@1dc9e5f52102f0133b804c0c8a6b76c55db908bf#egg=testpackage&subdirectory=tests/testpackage
+                # and parse out the egg name to pass to pip
+                pkg=$(echo "$line" | cut -f2 -d' ' | sed -e 's|&subdirectory.*||g' -e 's|.*egg=||g')
+            else
+                # Strip version specifiers off of the end of the line
+                # to keep only the package name.
+                pkg=$(echo "$line" | sed -e 's/[<>!=].*//g')
+            fi
+            echo $pkg
+            pip uninstall -y "$pkg"
+        done < "$req_file"
     else
         echo "Nothing to remove."
     fi