From 4b26edfa09d4f8a94e5b130c8be608da41cbc9b4 Mon Sep 17 00:00:00 2001
From: Guanqun Lu <guanqun.lu@gmail.com>
Date: Wed, 27 Dec 2017 18:35:49 +0800
Subject: [PATCH] display the required version and current version in error
 message

---
 build.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/build.rs b/build.rs
index a4a29a6c..2ffe199a 100644
--- a/build.rs
+++ b/build.rs
@@ -357,7 +357,7 @@ fn configure_from_path(expected_version: &PythonVersion) -> Result<(String, Stri
         }
         if let Some(minor) = some_minor {
             if minor < PY3_MIN_MINOR {
-                return Err(format!("Python 3 min version is 3.{}", minor))
+                return Err(format!("Python 3 required version is 3.{}, current version is 3.{}", PY3_MIN_MINOR, minor))
             }
             for i in 5..(minor+1) {
                 println!("cargo:rustc-cfg=Py_3_{}", i);