tools/gen-cpydiff.py: Switch to PYCOPYPATH envvar.
@@ -262,7 +262,7 @@ def main():
# set search path so that test scripts find the test modules (and no other ones)
os.environ["PYTHONPATH"] = TESTPATH
- os.environ["MICROPYPATH"] = TESTPATH
+ os.environ["PYCOPYPATH"] = TESTPATH
files = readfiles()
results = run_tests(files)
