python-3.6.zip added from Github

README.cosmo contains the necessary links.

third_party/python/Tools/scripts/findnocoding.py

@@ -0,0 +1,107 @@
+#!/usr/bin/env python3
+
+"""List all those Python files that require a coding directive
+
+Usage: findnocoding.py dir1 [dir2...]
+"""
+
+__author__ = "Oleg Broytmann, Georg Brandl"
+
+import sys, os, re, getopt
+
+# our pysource module finds Python source files
+try:
+    import pysource
+except ImportError:
+    # emulate the module with a simple os.walk
+    class pysource:
+        has_python_ext = looks_like_python = can_be_compiled = None
+        def walk_python_files(self, paths, *args, **kwargs):
+            for path in paths:
+                if os.path.isfile(path):
+                    yield path.endswith(".py")
+                elif os.path.isdir(path):
+                    for root, dirs, files in os.walk(path):
+                        for filename in files:
+                            if filename.endswith(".py"):
+                                yield os.path.join(root, filename)
+    pysource = pysource()
+
+
+    print("The pysource module is not available; "
+                         "no sophisticated Python source file search will be done.", file=sys.stderr)
+
+
+decl_re = re.compile(rb'^[ \t\f]*#.*?coding[:=][ \t]*([-\w.]+)')
+blank_re = re.compile(rb'^[ \t\f]*(?:[#\r\n]|$)')
+
+def get_declaration(line):
+    match = decl_re.match(line)
+    if match:
+        return match.group(1)
+    return b''
+
+def has_correct_encoding(text, codec):
+    try:
+        str(text, codec)
+    except UnicodeDecodeError:
+        return False
+    else:
+        return True
+
+def needs_declaration(fullpath):
+    try:
+        infile = open(fullpath, 'rb')
+    except IOError: # Oops, the file was removed - ignore it
+        return None
+
+    with infile:
+        line1 = infile.readline()
+        line2 = infile.readline()
+
+        if (get_declaration(line1) or
+            blank_re.match(line1) and get_declaration(line2)):
+            # the file does have an encoding declaration, so trust it
+            return False
+
+        # check the whole file for non utf-8 characters
+        rest = infile.read()
+
+    if has_correct_encoding(line1+line2+rest, "utf-8"):
+        return False
+
+    return True
+
+
+usage = """Usage: %s [-cd] paths...
+    -c: recognize Python source files trying to compile them
+    -d: debug output""" % sys.argv[0]
+
+if __name__ == '__main__':
+
+    try:
+        opts, args = getopt.getopt(sys.argv[1:], 'cd')
+    except getopt.error as msg:
+        print(msg, file=sys.stderr)
+        print(usage, file=sys.stderr)
+        sys.exit(1)
+
+    is_python = pysource.looks_like_python
+    debug = False
+
+    for o, a in opts:
+        if o == '-c':
+            is_python = pysource.can_be_compiled
+        elif o == '-d':
+            debug = True
+
+    if not args:
+        print(usage, file=sys.stderr)
+        sys.exit(1)
+
+    for fullpath in pysource.walk_python_files(args, is_python):
+        if debug:
+            print("Testing for coding: %s" % fullpath)
+        result = needs_declaration(fullpath)
+        if result:
+            print(fullpath)