python-3.6.zip added from Github

README.cosmo contains the necessary links.

third_party/python/Tools/scripts/lfcr.py

@@ -0,0 +1,24 @@
+#! /usr/bin/env python3
+
+"Replace LF with CRLF in argument files.  Print names of changed files."
+
+import sys, re, os
+
+def main():
+    for filename in sys.argv[1:]:
+        if os.path.isdir(filename):
+            print(filename, "Directory!")
+            continue
+        with open(filename, "rb") as f:
+            data = f.read()
+        if b'\0' in data:
+            print(filename, "Binary!")
+            continue
+        newdata = re.sub(b"\r?\n", b"\r\n", data)
+        if newdata != data:
+            print(filename)
+            with open(filename, "wb") as f:
+                f.write(newdata)
+
+if __name__ == '__main__':
+    main()