Factor out constant

Author: myint

download_lt.py

@@ -28,6 +28,9 @@
 PACKAGE_PATH = 'language_check'
 JAVA_6_COMPATIBLE_VERSION = '2.2'
 LATEST_VERSION = '2.7'
+JAVA_VERSION_REGEX = re.compile(
+    r'^(?:java|openjdk) version "(?P<major1>\d+)\.(?P<major2>\d+)\.[^"]+"$',
+    re.MULTILINE)
 
 
 def parse_java_version(version_text):
@@ -47,10 +50,7 @@ def parse_java_version(version_text):
     (1, 8)
 
     """
-    match = re.search(
-        r'^(?:java|openjdk) version "(?P<major1>\d+)\.(?P<major2>\d+)\.[^"]+"$',
-        version_text,
-        re.MULTILINE)
+    match = re.search(JAVA_VERSION_REGEX, version_text)
     if not match:
         raise SystemExit(
             'Could not parse Java version from """{}""".'.format(version_text))