From 4a3bbafdef42113eb02c9acab363c48ba72bdff6 2017-07-13 07:57:26
From: Thomas Kluyver <takowl@gmail.com>
Date: 2017-07-13 07:57:26
Subject: [PATCH] Merge pull request #10697 from ipython/auto-backport-of-pr-10696

Backport PR #10696 on branch 5.x
---

diff --git a/IPython/core/compilerop.py b/IPython/core/compilerop.py
index e39ded6..f529eb5 100644
--- a/IPython/core/compilerop.py
+++ b/IPython/core/compilerop.py
@@ -56,7 +56,7 @@ def code_name(code, number=0):
     
     This now expects code to be unicode.
     """
-    hash_digest = hashlib.md5(code.encode("utf-8")).hexdigest()
+    hash_digest = hashlib.sha1(code.encode("utf-8")).hexdigest()
     # Include the number and 12 characters of the hash in the name.  It's
     # pretty much impossible that in a single session we'll have collisions
     # even with truncated hashes, and the full one makes tracebacks too long