From efc978f3ceda96ac0ca767c4b3c2dd2224220f35 Mon Sep 17 00:00:00 2001
From: NickVeld <NickVeld@users.noreply.github.com>
Date: Mon, 2 Aug 2021 16:03:19 +0300
Subject: [PATCH] lib/nturl2path: in url2pathname raise error on several drive
 letters

---
 Lib/nturl2path.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Lib/nturl2path.py b/Lib/nturl2path.py
index 61852aff58912d..5705ea5f92a912 100644
--- a/Lib/nturl2path.py
+++ b/Lib/nturl2path.py
@@ -31,6 +31,9 @@ def url2pathname(url):
     if len(comp) != 2 or comp[0][-1] not in string.ascii_letters:
         error = 'Bad URL: ' + url
         raise OSError(error)
+    if len(comp[0]) > 1 and comp[0][-2] not in {"/", "\\"}:
+        error = 'Bad URL (too many drive letters [before the first | ]): ' + url
+        raise OSError(error)
     drive = comp[0][-1].upper()
     components = comp[1].split('/')
     path = drive + ':'