python-3.6.zip added from Github

README.cosmo contains the necessary links.

third_party/python/Include/graminit.h

@@ -0,0 +1,88 @@
+/* Generated by Parser/pgen */
+
+#define single_input 256
+#define file_input 257
+#define eval_input 258
+#define decorator 259
+#define decorators 260
+#define decorated 261
+#define async_funcdef 262
+#define funcdef 263
+#define parameters 264
+#define typedargslist 265
+#define tfpdef 266
+#define varargslist 267
+#define vfpdef 268
+#define stmt 269
+#define simple_stmt 270
+#define small_stmt 271
+#define expr_stmt 272
+#define annassign 273
+#define testlist_star_expr 274
+#define augassign 275
+#define del_stmt 276
+#define pass_stmt 277
+#define flow_stmt 278
+#define break_stmt 279
+#define continue_stmt 280
+#define return_stmt 281
+#define yield_stmt 282
+#define raise_stmt 283
+#define import_stmt 284
+#define import_name 285
+#define import_from 286
+#define import_as_name 287
+#define dotted_as_name 288
+#define import_as_names 289
+#define dotted_as_names 290
+#define dotted_name 291
+#define global_stmt 292
+#define nonlocal_stmt 293
+#define assert_stmt 294
+#define compound_stmt 295
+#define async_stmt 296
+#define if_stmt 297
+#define while_stmt 298
+#define for_stmt 299
+#define try_stmt 300
+#define with_stmt 301
+#define with_item 302
+#define except_clause 303
+#define suite 304
+#define test 305
+#define test_nocond 306
+#define lambdef 307
+#define lambdef_nocond 308
+#define or_test 309
+#define and_test 310
+#define not_test 311
+#define comparison 312
+#define comp_op 313
+#define star_expr 314
+#define expr 315
+#define xor_expr 316
+#define and_expr 317
+#define shift_expr 318
+#define arith_expr 319
+#define term 320
+#define factor 321
+#define power 322
+#define atom_expr 323
+#define atom 324
+#define testlist_comp 325
+#define trailer 326
+#define subscriptlist 327
+#define subscript 328
+#define sliceop 329
+#define exprlist 330
+#define testlist 331
+#define dictorsetmaker 332
+#define classdef 333
+#define arglist 334
+#define argument 335
+#define comp_iter 336
+#define comp_for 337
+#define comp_if 338
+#define encoding_decl 339
+#define yield_expr 340
+#define yield_arg 341