test: run the pytracer first so .tox is left with a c extension for ad-hoc use

Author: nedbat

Diff for: tox.ini

@@ -41,19 +41,19 @@ commands =
     # Create tests/zipmods.zip
     python igor.py zip_mods
 
+    # Remove the C extension so that we can test the PyTracer
+    python igor.py remove_extension
+
+    # Test with the PyTracer
+    python igor.py test_with_core pytrace {posargs}
+
     # Build the C extension and test with the CTracer
     python setup.py --quiet build_ext --inplace
     python -m pip install {env:COVERAGE_PIP_ARGS} -q -e .
     python igor.py test_with_core ctrace {posargs}
 
     py3{12,13,14},anypy: python igor.py test_with_core sysmon {posargs}
 
-    # Remove the C extension so that we can test the PyTracer
-    python igor.py remove_extension
-
-    # Test with the PyTracer
-    python igor.py test_with_core pytrace {posargs}
-
 [testenv:anypy]
 # $set_env.py: COVERAGE_ANYPY - The custom Python for "tox -e anypy"
 # For running against my own builds of CPython, or any other specific Python.