From fa0881d1d4d78c9c27eda17e4d6c97c093741f45 Mon Sep 17 00:00:00 2001
From: Adam Wallis <adam.wallis@gmail.com>
Date: Fri, 25 Sep 2020 13:32:19 -0400
Subject: [PATCH] Add 'rc' to VERSION_REGEX

The previous VERSION_REGEX string only checks for 'RC', however, the
latest RC submitted to the poetry project is '1.1.0rc1' which fails the
regex test for allowing installation of PREVIEW releases.

fixes: https://github.com/python-poetry/poetry/issues/2977
---
 get-poetry.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/get-poetry.py b/get-poetry.py
index 45a062b7e88..0df27239a9b 100644
--- a/get-poetry.py
+++ b/get-poetry.py
@@ -317,7 +317,7 @@ class Installer:
         r"v?(\d+)(?:\.(\d+))?(?:\.(\d+))?(?:\.(\d+))?"
         "("
         "[._-]?"
-        r"(?:(stable|beta|b|RC|alpha|a|patch|pl|p)((?:[.-]?\d+)*)?)?"
+        r"(?:(stable|beta|b|rc|RC|alpha|a|patch|pl|p)((?:[.-]?\d+)*)?)?"
         "([.-]?dev)?"
         ")?"
         r"(?:\+[^\s]+)?"