Remove unsused code in platform.py

Lib/platform.py

@@ -943,139 +943,6 @@ def processor():
     """
     return uname().processor
 
-### Various APIs for extracting information from sys.version
-
-_sys_version_parser = re.compile(
-    r'([\w.+]+)\s*'  # "version<space>"
-    r'\(#?([^,]+)'  # "(#buildno"
-    r'(?:,\s*([\w ]*)'  # ", builddate"
-    r'(?:,\s*([\w :]*))?)?\)\s*'  # ", buildtime)<space>"
-    r'\[([^\]]+)\]?', re.ASCII)  # "[compiler]"
-
-_ironpython_sys_version_parser = re.compile(
-    r'IronPython\s*'
-    r'([\d\.]+)'
-    r'(?: \(([\d\.]+)\))?'
-    r' on (.NET [\d\.]+)', re.ASCII)
-
-# IronPython covering 2.6 and 2.7
-_ironpython26_sys_version_parser = re.compile(
-    r'([\d.]+)\s*'
-    r'\(IronPython\s*'
-    r'[\d.]+\s*'
-    r'\(([\d.]+)\) on ([\w.]+ [\d.]+(?: \(\d+-bit\))?)\)'
-)
-
-_pypy_sys_version_parser = re.compile(
-    r'([\w.+]+)\s*'
-    r'\(#?([^,]+),\s*([\w ]+),\s*([\w :]+)\)\s*'
-    r'\[PyPy [^\]]+\]?')
-
-_sys_version_cache = {}
-
-def _sys_version(sys_version=None):
-
-    """ Returns a parsed version of Python's sys.version as tuple
-        (name, version, branch, revision, buildno, builddate, compiler)
-        referring to the Python implementation name, version, branch,
-        revision, build number, build date/time as string and the compiler
-        identification string.
-
-        Note that unlike the Python sys.version, the returned value
-        for the Python version will always include the patchlevel (it
-        defaults to '.0').
-
-        The function returns empty strings for tuple entries that
-        cannot be determined.
-
-        sys_version may be given to parse an alternative version
-        string, e.g. if the version was read from a different Python
-        interpreter.
-
-    """
-    # Get the Python version
-    if sys_version is None:
-        sys_version = sys.version
-
-    # Try the cache first
-    result = _sys_version_cache.get(sys_version, None)
-    if result is not None:
-        return result
-
-    # Parse it
-    if 'IronPython' in sys_version:
-        # IronPython
-        name = 'IronPython'
-        if sys_version.startswith('IronPython'):
-            match = _ironpython_sys_version_parser.match(sys_version)
-        else:
-            match = _ironpython26_sys_version_parser.match(sys_version)
-
-        if match is None:
-            raise ValueError(
-                'failed to parse IronPython sys.version: %s' %
-                repr(sys_version))
-
-        version, alt_version, compiler = match.groups()
-        buildno = ''
-        builddate = ''
-
-    elif sys.platform.startswith('java'):
-        # Jython
-        name = 'Jython'
-        match = _sys_version_parser.match(sys_version)
-        if match is None:
-            raise ValueError(
-                'failed to parse Jython sys.version: %s' %
-                repr(sys_version))
-        version, buildno, builddate, buildtime, _ = match.groups()
-        if builddate is None:
-            builddate = ''
-        compiler = sys.platform
-
-    elif "PyPy" in sys_version:
-        # PyPy
-        name = "PyPy"
-        match = _pypy_sys_version_parser.match(sys_version)
-        if match is None:
-            raise ValueError("failed to parse PyPy sys.version: %s" %
-                             repr(sys_version))
-        version, buildno, builddate, buildtime = match.groups()
-        compiler = ""
-
-    else:
-        # CPython
-        match = _sys_version_parser.match(sys_version)
-        if match is None:
-            raise ValueError(
-                'failed to parse CPython sys.version: %s' %
-                repr(sys_version))
-        version, buildno, builddate, buildtime, compiler = \
-              match.groups()
-        name = 'CPython'
-        if builddate is None:
-            builddate = ''
-        elif buildtime:
-            builddate = builddate + ' ' + buildtime
-
-    if hasattr(sys, '_git'):
-        _, branch, revision = sys._git
-    elif hasattr(sys, '_mercurial'):
-        _, branch, revision = sys._mercurial
-    else:
-        branch = ''
-        revision = ''
-
-    # Add the patchlevel version if missing
-    l = version.split('.')
-    if len(l) == 2:
-        l.append('0')
-        version = '.'.join(l)
-
-    # Build and cache the result
-    result = (name, version, branch, revision, buildno, builddate, compiler)
-    _sys_version_cache[sys_version] = result
-    return result
 
 # RustPython specific
 from _platform import *