From f756bc540a849039d88c19378419838fe87f15b0 Mon Sep 17 00:00:00 2001
From: AUTOMATIC <16777216c@gmail.com>
Date: Sat, 15 Oct 2022 10:28:20 +0300
Subject: [PATCH] fix #2588 breaking launch.py (. . .)

---
 launch.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/launch.py b/launch.py
index 42072f33..537670a3 100644
--- a/launch.py
+++ b/launch.py
@@ -9,7 +9,7 @@ import platform
 dir_repos = "repositories"
 python = sys.executable
 git = os.environ.get('GIT', "git")
-index_url = os.environ.get('INDEX_URL',"")
+index_url = os.environ.get('INDEX_URL', "")
 
 
 def extract_arg(args, name):
@@ -58,7 +58,8 @@ def run_python(code, desc=None, errdesc=None):
 
 
 def run_pip(args, desc=None):
-    return run(f'"{python}" -m pip {args} --prefer-binary{f' --index-url {index_url}' if index_url!='' else ''}', desc=f"Installing {desc}", errdesc=f"Couldn't install {desc}")
+    index_url_line = f' --index-url {index_url}' if index_url != '' else ''
+    return run(f'"{python}" -m pip {args} --prefer-binary{index_url_line}', desc=f"Installing {desc}", errdesc=f"Couldn't install {desc}")
 
 
 def check_run_python(code):