From e2eed912b2b5d8e26936b383fc033c5771500638 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Mon, 24 Nov 2014 09:17:34 +0530
Subject: [PATCH] Do not modify sys.path when using calibre-debug to run files
 in the calibre source code, since calibre always uses absolute imports anyway

---
 src/calibre/debug.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/calibre/debug.py b/src/calibre/debug.py
index 116fd73187..6f49799888 100644
--- a/src/calibre/debug.py
+++ b/src/calibre/debug.py
@@ -193,8 +193,9 @@ def run_script(path, args):
 
     sys.argv = [path] + args
     ef = os.path.abspath(path)
-    base = os.path.dirname(ef)
-    sys.path.insert(0, base)
+    if '/src/calibre/' not in ef.replace(os.pathsep, '/'):
+        base = os.path.dirname(ef)
+        sys.path.insert(0, base)
     g = globals()
     g['__name__'] = '__main__'
     g['__file__'] = ef