* [CodeStyle] use built-in `open` instead of `io.open`

* revert flake8 config changes

* Update README.md

* Update README.md

* Fix E713: convert 'not ... in' to 'not in'

* Update README.md

* Update README.md

* Fix F541 by converting f-string to normal strings

* test

* test

* refine check pr is_comment chanege

* test

* check change of unittest before checking coverage rate,test=coverage

* modify paddle_build.sh

* adding test_list.py

* [CodeStyle] remove all future import

* revert test_error.py

* restore future import in example code

* it is a test for my idea,test=coverage

* it is a test,test=coverage

* it is a test,test=coverage

* optimizing coverage ci for build develop twice

* it is a test to delete a unnitest,test=coverage

* optimizing pr ci coverage

* update cpplint hook script

* update pre-commit config

* try trigger cpplint on ci

* Revert "try trigger cpplint on ci"

This reverts commit 895853453c5f68b587914713e313c92abb69fc45.

* empty commit, test=document_fix

* [CodeStyle] trim trailing whitespace in yaml and hook

* python incremental whitespace and yml files

* support int64 non-broadcast

* support broadcast case for int64 index

* fix bug

* support more Arity

* remove some codes

* upgrade patchelf to v0.15.0 to pass CI build

* fix bug

* fix patchelf installation

* add debug flags

* remove useless codes

* fix viterbi_decode and set_value op uts

* remove always enable int64

* this pr is for optimizing precise test

* modify get_pr_ut.py

* modify get_pr_ut.py

* unify  core_avx and core_noavx

* fix except error

* revert mac compile logic

* revert dylib to so

* add core_noavx branch

* remove core_noavx

* replace paddle_core by lib paddle

* polish var name

* replace paddle_core by libpaddle

* update custom device commit

* polish code by comments

* trim trailing whitespace

* fix `.cmake-format.py`

* revert npu ut changes, avoid npu ci error

* [CodeStyle] trim trailing whitespace in .md and .rst

* empty commit, test=document_fix

* add ci rule for blocking legacy kernel registration, test=document_fix

* add a test case, test=document_fix

* Revert "add a test case, test=document_fix"

This reverts commit 239e08678b791aabb8fae48c4b74f2a8861e222d.

* polish desc, test=document_fix

* normalize yaml op label

* revert op_compat yaml change

* fix prelu and rnn compat problem

* replace api by op

* add audio feature dataset

* fix coding style

* fix coding style2

* rm librosa

* rm voxceleb

* rm librosa in test

* add scipy fftpack

* add functional

* fix setup

* fix setup2

* rm colorlog

* refactor dataset __init__.py

* fix converage

* fix librosa import error

* fix windows test

* fix windows ci

* rm datasets

* fix setup

* remove testdata

* add librosa in requirement

* add librosa in requirement2

* change librosa to 0.8.1

* update ci docker

* fix ci error

* fix ci error2

* fix ci coverage

* fix converage

* fix coverage

* rm audio_base in test, notest,test=coverage

* fix copyright

* rm backend

* rm compliance&&add function test

* fix setup

* fix windows

* fix windows2

* fix test timeout

* fix ci time issue

* rm test_audio_feature

* avoid windows isssue, tmp

* note windows isssue

* skip windows issue

* fix dtype in layers.mfcc && fix ci-static-check

* add relative accuracy

* modity API.spec

* skip cuda11.2 test

* skip cuda11.2 test2

* skip cuda11.2

* update op change approve list, test=document_fix

* update recommend member, test=document_fix

* add weibo into approve list, test=document_fix

* update op change approve list, test=document_fix

* update recommend member, test=document_fix