# HG changeset patch
# Parent  0b15b5371c0712a78002035eb27249ed04cd7b57
Issue #21313: Tolerate truncated buildinfo in sys.version

diff -r 0b15b5371c07 Lib/platform.py
--- a/Lib/platform.py	Wed May 25 18:17:25 2011 +0200
+++ b/Lib/platform.py	Fri May 13 05:48:05 2016 +0000
@@ -1315,7 +1315,7 @@
 
 _sys_version_parser = re.compile(
     r'([\w.+]+)\s*'
-    '\(#?([^,]+),\s*([\w ]+),\s*([\w :]+)\)\s*'
+    '\(#?([^,]+)(?:,\s*([\w ]*)(?:,\s*([\w :]*))?)?\)\s*'
     '\[([^\]]+)\]?')
 
 _ironpython_sys_version_parser = re.compile(
@@ -1395,6 +1395,10 @@
                 'failed to parse Jython sys.version: %s' %
                 repr(sys_version))
         version, buildno, builddate, buildtime, _ = match.groups()
+        if builddate is None:
+            builddate = ''
+            if buildtime is None:
+                buildtime = ''
         compiler = sys.platform
 
     elif "PyPy" in sys_version:
@@ -1417,7 +1421,12 @@
         version, buildno, builddate, buildtime, compiler = \
               match.groups()
         name = 'CPython'
-        builddate = builddate + ' ' + buildtime
+        if builddate is None:
+            builddate = ''
+        if buildtime:
+            builddate = builddate + ' ' + buildtime
+        elif buildtime is None:
+            buildtime = ''
 
     if hasattr(sys, 'subversion'):
         # sys.subversion was added in Python 2.5
diff -r 0b15b5371c07 Lib/test/test_platform.py
--- a/Lib/test/test_platform.py	Wed May 25 18:17:25 2011 +0200
+++ b/Lib/test/test_platform.py	Fri May 13 05:48:05 2016 +0000
@@ -67,6 +67,22 @@
              ('IronPython', '1.0.60816', '', '', '', '', '.NET 2.0.50727.42')),
             ('IronPython 1.0 (1.0.61005.1977) on .NET 2.0.50727.42',
              ('IronPython', '1.0.0', '', '', '', '', '.NET 2.0.50727.42')),
+            ('2.4.3 (truncation, date, t) \n[GCC]',
+             ('CPython', '2.4.3', '', '', 'truncation', 'date t', 'GCC')),
+            ('2.4.3 (truncation, date, ) \n[GCC]',
+             ('CPython', '2.4.3', '', '', 'truncation', 'date', 'GCC')),
+            ('2.4.3 (truncation, date,) \n[GCC]',
+             ('CPython', '2.4.3', '', '', 'truncation', 'date', 'GCC')),
+            ('2.4.3 (truncation, date) \n[GCC]',
+             ('CPython', '2.4.3', '', '', 'truncation', 'date', 'GCC')),
+            ('2.4.3 (truncation, d) \n[GCC]',
+             ('CPython', '2.4.3', '', '', 'truncation', 'd', 'GCC')),
+            ('2.4.3 (truncation, ) \n[GCC]',
+             ('CPython', '2.4.3', '', '', 'truncation', '', 'GCC')),
+            ('2.4.3 (truncation,) \n[GCC]',
+             ('CPython', '2.4.3', '', '', 'truncation', '', 'GCC')),
+            ('2.4.3 (truncation) \n[GCC]',
+             ('CPython', '2.4.3', '', '', 'truncation', '', 'GCC')),
             ):
             # branch and revision are not "parsed", but fetched
             # from sys.subversion.  Ignore them
diff -r 0b15b5371c07 Misc/NEWS
--- a/Misc/NEWS	Wed May 25 18:17:25 2011 +0200
+++ b/Misc/NEWS	Fri May 13 05:48:05 2016 +0000
@@ -77,6 +77,9 @@
 Library
 -------
 
+- Issue #21313: Fix the "platform" module to tolerate when sys.version
+  contains truncated build information.
+
 - Issue #12045: Avoid duplicate execution of command in ctypes.util._get_soname().
   Patch by Sijin Joseph.