Merge pull request !405 from Chong/str-gen

Merge pull request !499 from JoyLvliang/pynative-support-topk-and-print

Merge pull request !390 from gukecai/master

Merge pull request !496 from SanjayChan/cross_entropy

Merge pull request !483 from jiangzhiwen/dataset/skip_opt

Merge pull request !517 from xulei/filter_master

Merge pull request !522 from vlne-v1/I1F21H-pass-adjust_all_reduce_mul_add-repkace-op-is-not-has-a-infer

Merge pull request !316 from VectorSL/edit

Merge pull request !519 from limingqi107/fix_visit_kernel

Merge pull request !394 from Chong/parser

Merge pull request !313 from VectorSL/float_status

Merge pull request !481 from leonwanghui/rm-code

Merge pull request !514 from liyong126/mindrecord_pk_sampler_lee

Merge pull request !498 from wangnan39/fix_bug_in_model_eval_and_model_predict

Merge pull request !456 from candanzg/not_equal_auto_cast

Merge pull request !467 from candanzg/bug_for_makedirs

Merge pull request !464 from candanzg/summary_event_notes

Merge pull request !509 from cathwong/ckw_dataset_py_ut2

Merge pull request !406 from Peilin/first-row-crc-check

Merge pull request !460 from xulei/filter_master

Merge pull request !404 from JunhanHu/python_sampler_for_cpp_dataset

addressed code review comments. added check in python layer to exclude directories and to raise an error if a pattern does not match any file

fixed clang format

fixed cppcheck

fixed cppcheck (used std::accumulate and std::copy_if). regenerated tfrecord file to contain correct header, it was a dummy header before

fixed cppcheck: added const reference for string parameter for lambdas, fixed clang format: whitespace adjustments

more clang whitespace fixes...

changed print to logger.info

Merge pull request !425 from yanghaitao/yht_textfiledatasetv2

Merge pull request !489 from yanghaoran/master

Merge pull request !472 from YuJianfeng/master

Merge pull request !497 from ms_yan/take_log