From f92e1d78d8bc357551d5427b15419dd2eaedf124 Mon Sep 17 00:00:00 2001
From: SimonBiggs <me@simonbiggs.net>
Date: Tue, 2 Feb 2021 09:57:00 +1100
Subject: [PATCH] create grammar tables directory

---
 src/blib2to3/pgen2/driver.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/blib2to3/pgen2/driver.py b/src/blib2to3/pgen2/driver.py
index 81940f78f0f..66ce941eb57 100644
--- a/src/blib2to3/pgen2/driver.py
+++ b/src/blib2to3/pgen2/driver.py
@@ -20,6 +20,7 @@
 import io
 import os
 import logging
+import pathlib
 import pkgutil
 import sys
 from typing import (
@@ -191,6 +192,8 @@ def load_grammar(
     if logger is None:
         logger = logging.getLogger(__name__)
     gp = _generate_pickle_name(gt) if gp is None else gp
+    pickle_directory = pathlib.Path(gp).parent
+    pickle_directory.mkdir(exist_ok=True, parents=True)
     if force or not _newer(gp, gt):
         logger.info("Generating grammar tables from %s", gt)
         g: grammar.Grammar = pgen.generate_grammar(gt)