Fix CI

tests/stubtest_stdlib.py

@@ -11,6 +11,7 @@
 
 import subprocess
 import sys
+import tempfile
 from pathlib import Path
 
 from _utils import allowlist_stubtest_arguments, allowlists_path
@@ -21,41 +22,46 @@ def run_stubtest(typeshed_dir: Path) -> int:
     # This is fine because we don't care about distutils and allowlist all errors from it
     # https://github.com/python/typeshed/pull/10253#discussion_r1216712404
     # https://github.com/python/typeshed/pull/9734
-    cmd = [
-        sys.executable,
-        "-m",
-        "mypy.stubtest",
-        "--check-typeshed",
-        "--custom-typeshed-dir",
-        str(typeshed_dir),
-        *allowlist_stubtest_arguments("stdlib"),
-        # Options for mypy check before the stubtest:
-        "--disable-error-code=overload-overlap",
-    ]
-    if sys.version_info < (3, 10):
-        # As discussed in https://github.com/python/typeshed/issues/3693, we only aim for
-        # positional-only arg accuracy for python 3.10 and above.
-        cmd += ["--ignore-positional-only"]
-    print(" ".join(cmd), file=sys.stderr)
-    try:
-        subprocess.run(cmd, check=True)
-    except subprocess.CalledProcessError as e:
-        print(
-            "\nNB: stubtest output depends on the Python version (and system) it is run with. "
-            + "See README.md for more details.\n"
-            + "NB: We only check positional-only arg accuracy for Python 3.10.\n"
-            + f"\nCommand run was: {' '.join(cmd)}\n",
-            file=sys.stderr,
-        )
-        print("\n\n", file=sys.stderr)
-        print(
-            f'To fix "unused allowlist" errors, remove the corresponding entries from {allowlists_path("stdlib")}',
-            file=sys.stderr,
-        )
-        return e.returncode
-    else:
-        print("stubtest succeeded", file=sys.stderr)
-        return 0
+    with tempfile.NamedTemporaryFile("w+") as temp:
+        temp.write("[mypy]\ndisable_error_code = overload-overlap")
+        temp.flush()
+
+        cmd = [
+            sys.executable,
+            "-m",
+            "mypy.stubtest",
+            "--check-typeshed",
+            "--custom-typeshed-dir",
+            str(typeshed_dir),
+            *allowlist_stubtest_arguments("stdlib"),
+            # Options for mypy check before the stubtest:
+            "--mypy-config-file",
+            str(config_file),
+        ]
+        if sys.version_info < (3, 10):
+            # As discussed in https://github.com/python/typeshed/issues/3693, we only aim for
+            # positional-only arg accuracy for python 3.10 and above.
+            cmd += ["--ignore-positional-only"]
+        print(" ".join(cmd), file=sys.stderr)
+        try:
+            subprocess.run(cmd, check=True)
+        except subprocess.CalledProcessError as e:
+            print(
+                "\nNB: stubtest output depends on the Python version (and system) it is run with. "
+                + "See README.md for more details.\n"
+                + "NB: We only check positional-only arg accuracy for Python 3.10.\n"
+                + f"\nCommand run was: {' '.join(cmd)}\n",
+                file=sys.stderr,
+            )
+            print("\n\n", file=sys.stderr)
+            print(
+                f'To fix "unused allowlist" errors, remove the corresponding entries from {allowlists_path("stdlib")}',
+                file=sys.stderr,
+            )
+            return e.returncode
+        else:
+            print("stubtest succeeded", file=sys.stderr)
+            return 0
 
 
 if __name__ == "__main__":

tests/stubtest_third_party.py

@@ -99,6 +99,10 @@ def run_stubtest(
         ignore_missing_stub = ["--ignore-missing-stub"] if stubtest_settings.ignore_missing_stub else []
         packages_to_check = [d.name for d in dist.iterdir() if d.is_dir() and d.name.isidentifier()]
         modules_to_check = [d.stem for d in dist.iterdir() if d.is_file() and d.suffix == ".pyi"]
+
+        config_file = Path(tmp, "mypy.ini")
+        config_file.write_text("[mypy]\ndisable_error_code = overload-overlap")
+
         stubtest_cmd = [
             python_exe,
             "-m",
@@ -111,7 +115,8 @@ def run_stubtest(
             *modules_to_check,
             *allowlist_stubtest_arguments(dist_name),
             # Options for mypy check before the stubtest:
-            "--disable-error-code=overload-overlap",
+            "--mypy-config-file",
+            str(config_file),
         ]
 
         stubs_dir = dist.parent