diff --git a/hypothesis-python/scripts/other-tests.sh b/hypothesis-python/scripts/other-tests.sh
index 4e24e51c11..8a7b3dcac8 100644
--- a/hypothesis-python/scripts/other-tests.sh
+++ b/hypothesis-python/scripts/other-tests.sh
@@ -31,7 +31,9 @@ $PYTEST tests/redis/
 pip uninstall -y redis fakeredis
 
 $PYTEST tests/typing_extensions/
-pip uninstall -y typing_extensions
+if [[ "$HYPOTHESIS_PROFILE" != "crosshair" ]]; then
+  pip uninstall -y typing_extensions
+fi
 
 if [ "$(python -c 'import sys; print(sys.version_info[:2] >= (3, 9))')" = "True" ] ; then
   pip install "$(grep 'annotated-types==' ../requirements/coverage.txt)"
@@ -62,14 +64,10 @@ if [ "$(python -c $'import platform, sys; print(sys.version_info.releaselevel ==
     pip install "$(grep 'numpy==' ../requirements/coverage.txt)"
   fi
 
-  case "$(python -c 'import platform; print(platform.python_implementation())')" in
-    PyPy|GraalVM)
-      ;;
-    *)
-      $PYTEST tests/array_api
-      $PYTEST tests/numpy
-  esac
-
   $PYTEST tests/ghostwriter/
-  pip uninstall -y black numpy
+  pip uninstall -y black
+
+  if [ "$(python -c "import platform; print(platform.python_implementation() not in {'PyPy', 'GraalVM'})")" = "True" ] ; then
+    $PYTEST tests/array_api tests/numpy
+  fi
 fi
diff --git a/hypothesis-python/setup.py b/hypothesis-python/setup.py
index fd0e774269..7cdfa3c402 100644
--- a/hypothesis-python/setup.py
+++ b/hypothesis-python/setup.py
@@ -60,7 +60,7 @@ def local_file(name):
     "pytest": ["pytest>=4.6"],
     "dpcontracts": ["dpcontracts>=0.4"],
     "redis": ["redis>=3.0.0"],
-    "crosshair": ["hypothesis-crosshair>=0.0.7", "crosshair-tool>=0.0.61"],
+    "crosshair": ["hypothesis-crosshair>=0.0.8", "crosshair-tool>=0.0.62"],
     # zoneinfo is an odd one: every dependency is conditional, because they're
     # only necessary on old versions of Python or Windows systems or emscripten.
     "zoneinfo": [
diff --git a/hypothesis-python/tests/cover/test_draw_example.py b/hypothesis-python/tests/cover/test_draw_example.py
index a417297614..94e08d5c73 100644
--- a/hypothesis-python/tests/cover/test_draw_example.py
+++ b/hypothesis-python/tests/cover/test_draw_example.py
@@ -16,11 +16,11 @@
 from tests.common.debug import check_can_generate_examples
 
 
-@pytest.mark.parametrize("spec", standard_types, ids=list(map(repr, standard_types)))
+@pytest.mark.parametrize("spec", standard_types, ids=repr)
 def test_single_example(spec):
     check_can_generate_examples(spec)
 
 
-@pytest.mark.parametrize("spec", standard_types, ids=list(map(repr, standard_types)))
+@pytest.mark.parametrize("spec", standard_types, ids=repr)
 def test_list_example(spec):
     check_can_generate_examples(lists(spec))
diff --git a/hypothesis-python/tests/cover/test_explicit_examples.py b/hypothesis-python/tests/cover/test_explicit_examples.py
index d47e9ae41e..efbb4377d3 100644
--- a/hypothesis-python/tests/cover/test_explicit_examples.py
+++ b/hypothesis-python/tests/cover/test_explicit_examples.py
@@ -27,7 +27,7 @@
 from hypothesis.internal.compat import ExceptionGroup
 from hypothesis.strategies import floats, integers, text
 
-from tests.common.utils import assert_falsifying_output, capture_out
+from tests.common.utils import assert_falsifying_output, capture_out, fails_with
 
 
 class TestInstanceMethods(TestCase):
@@ -222,15 +222,12 @@ def test(a):
         test()
 
 
-def test_runs_deadline_for_examples():
-    @example(10)
-    @settings(phases=[Phase.explicit])
-    @given(integers())
-    def test(x):
-        time.sleep(10)
-
-    with pytest.raises(DeadlineExceeded):
-        test()
+@fails_with(DeadlineExceeded)
+@example(10)
+@settings(phases=[Phase.explicit])
+@given(integers())
+def test(x):
+    time.sleep(10)
 
 
 @given(value=floats(0, 1))
diff --git a/hypothesis-python/tests/ghostwriter/test_ghostwriter.py b/hypothesis-python/tests/ghostwriter/test_ghostwriter.py
index f63f881bf3..402209ea63 100644
--- a/hypothesis-python/tests/ghostwriter/test_ghostwriter.py
+++ b/hypothesis-python/tests/ghostwriter/test_ghostwriter.py
@@ -11,6 +11,8 @@
 import ast
 import enum
 import json
+import os
+import platform
 import re
 import socket
 import unittest
@@ -450,13 +452,22 @@ def test_get_imports_for_strategy(strategy, imports):
 
 
 @pytest.fixture
-def temp_script_file():
-    """Fixture to yield a Path to a temporary file in the local directory. File name will end
-    in .py and will include an importable function.
+def in_temp_path(tmp_path):
+    """Fixture to execute tests in a temporary path."""
+    old_path = Path.cwd()
+    os.chdir(tmp_path)
+    yield
+    os.chdir(old_path)
+
+
+@pytest.fixture
+def temp_script_file(in_temp_path):
+    """Fixture to create a script file in a temporary working directory.
+
+    Changes the working directory to a temporary directory, then yields an extant file
+    whose name will end in .py and which includes an importable function.
     """
     p = Path("my_temp_script.py")
-    if p.exists():
-        raise FileExistsError(f"Did not expect {p} to exist during testing")
     p.write_text(
         dedent(
             """
@@ -466,18 +477,17 @@ def say_hello():
         ),
         encoding="utf-8",
     )
-    yield p
-    p.unlink()
+    return p
 
 
 @pytest.fixture
-def temp_script_file_with_py_function():
-    """Fixture to yield a Path to a temporary file in the local directory. File name will end
-    in .py and will include an importable function named "py"
+def temp_script_file_with_py_function(in_temp_path):
+    """Fixture to create a python file in a temporary working directory.
+
+    Changes the working directory to a temporary directory, then yields an extant file
+    whose name will end in .py and which includes an importable function named "py".
     """
     p = Path("my_temp_script_with_py_function.py")
-    if p.exists():
-        raise FileExistsError(f"Did not expect {p} to exist during testing")
     p.write_text(
         dedent(
             """
@@ -487,8 +497,7 @@ def py():
         ),
         encoding="utf-8",
     )
-    yield p
-    p.unlink()
+    return p
 
 
 def test_obj_name(temp_script_file, temp_script_file_with_py_function):
@@ -500,7 +509,7 @@ def test_obj_name(temp_script_file, temp_script_file_with_py_function):
     )
     # Windows paths (strings including a "\") should also raise a meaningful UsageError
     with pytest.raises(click.exceptions.UsageError) as e:
-        cli.obj_name("mydirectory\\myscript.py")
+        cli.obj_name(R"mydirectory\myscript.py")
     assert e.match(
         "Remember that the ghostwriter should be passed the name of a module, not a path."
     )
@@ -510,7 +519,10 @@ def test_obj_name(temp_script_file, temp_script_file_with_py_function):
     assert e.match(
         "Remember that the ghostwriter should be passed the name of a module, not a file."
     )
+
     # File names of modules (strings ending in ".py") that exist should get a suggestion
+    if platform.system() == "Darwin":
+        return  # bad/flaky interaction between importlib and tempdirs here
     with pytest.raises(click.exceptions.UsageError) as e:
         cli.obj_name(str(temp_script_file))
     assert e.match(
diff --git a/hypothesis-python/tests/nocover/test_collective_minimization.py b/hypothesis-python/tests/nocover/test_collective_minimization.py
index ae9b9b3959..ebd846096b 100644
--- a/hypothesis-python/tests/nocover/test_collective_minimization.py
+++ b/hypothesis-python/tests/nocover/test_collective_minimization.py
@@ -18,7 +18,7 @@
 from tests.common.debug import minimal
 
 
-@pytest.mark.parametrize("spec", standard_types, ids=list(map(repr, standard_types)))
+@pytest.mark.parametrize("spec", standard_types, ids=repr)
 def test_can_collectively_minimize(spec):
     n = 10
     try:
diff --git a/pyproject.toml b/pyproject.toml
index 59a77bae6f..5e4e160149 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -47,6 +47,7 @@ ignore = [
   "PIE790",  # See https://github.com/astral-sh/ruff/issues/10538
   "PT001",
   "PT003",
+  "PT004",
   "PT006",
   "PT007",
   "PT009",