From cff82fe4d79f1b6ea1907fcc7075090975222087 Mon Sep 17 00:00:00 2001
From: Irmen de Jong <irmen@razorvine.net>
Date: Mon, 10 Feb 2020 22:40:48 +0100
Subject: [PATCH] removed explicit version checks of dependencies such as
 serpent

---
 Pyro5/serializers.py      | 11 -----------
 docs/source/changelog.rst |  2 ++
 2 files changed, 2 insertions(+), 11 deletions(-)

diff --git a/Pyro5/serializers.py b/Pyro5/serializers.py
index cc1c432..3c72783 100644
--- a/Pyro5/serializers.py
+++ b/Pyro5/serializers.py
@@ -19,8 +19,6 @@
 import contextlib
 try:
     import msgpack
-    if msgpack.version < (0, 5, 2):
-        raise RuntimeError("requires msgpack 0.5.2 or better")
 except ImportError:
     msgpack = None
 from . import errors
@@ -31,15 +29,6 @@
 log = logging.getLogger("Pyro5.serializers")
 
 
-if '-' in serpent.__version__:
-    ver = serpent.__version__.split('-', 1)[0]
-else:
-    ver = serpent.__version__
-ver = tuple(map(int, ver.split(".")))
-if ver < (1, 27):
-    raise RuntimeError("requires serpent 1.27 or better")
-
-
 all_exceptions = {}
 for name, t in vars(builtins).items():
     if type(t) is type and issubclass(t, BaseException):
diff --git a/docs/source/changelog.rst b/docs/source/changelog.rst
index 4196f69..5626314 100644
--- a/docs/source/changelog.rst
+++ b/docs/source/changelog.rst
@@ -5,6 +5,8 @@ Change Log
 **Pyro 5.8**
 
 - cython compatibility fix
+- removed explicit version checks of dependencies such as serpent.
+  This fixes crash error when dealing with prerelease versions that didn't match the pattern.
 
 
 **Pyro 5.7**