From: @laiyongqiang
Reviewed-by: @kisnwang,@jjfeing
Signed-off-by: @jjfeing

From: @cathwong
Reviewed-by: @pandoublefeng,@tom__chen
Signed-off-by: @pandoublefeng

From: @lixiachen
Reviewed-by: @pandoublefeng,@robingrosman
Signed-off-by: @robingrosman

From: @hfarahat
Reviewed-by: @pandoublefeng,@robingrosman
Signed-off-by: @pandoublefeng

From: @cathwong
Reviewed-by: 
Signed-off-by:

From: @lianliguang
Reviewed-by: @ginfung
Signed-off-by:

From: @lizhenglong1992
Reviewed-by: 
Signed-off-by:

From: @jonyguo
Reviewed-by: @liucunwei,@heleiwang
Signed-off-by: @liucunwei

From: @hfarahat
Reviewed-by: @robingrosman,@mikef
Signed-off-by: @robingrosman

From: @lixiachen
Reviewed-by: @robingrosman,@mikef
Signed-off-by: @robingrosman

1- access out of bound memory in toFlatIndex
2- CreateFromNPArray function is 50>
3- duplicate variable init

Turn off lock only after all data is cached

From: @alexyuyue
Reviewed-by: 
Signed-off-by:

From: @luoyang42
Reviewed-by: @heleiwang,@liucunwei
Signed-off-by: @liucunwei

Signed-off-by: alex-yuyue <yue.yu1@huawei.com>

From: @huangbingjian
Reviewed-by: 
Signed-off-by:

From: @luoyang42
Reviewed-by: @heleiwang,@liucunwei
Signed-off-by: @liucunwei

From: @anancds
Reviewed-by: @limingqi107
Signed-off-by:

From: @hfarahat
Reviewed-by: @pandoublefeng,@robingrosman
Signed-off-by: @pandoublefeng

From: @huangbingjian
Reviewed-by: @ginfung,@zh_qh
Signed-off-by: @zh_qh

From: @alexyuyue
Reviewed-by: 
Signed-off-by:

From: @hfarahat
Reviewed-by: 
Signed-off-by:

From: @yao_yf
Reviewed-by: 
Signed-off-by:

From: @lianliguang
Reviewed-by: @ginfung,@chujinjin
Signed-off-by: @chujinjin

From: @zhangbuxue
Reviewed-by: @zh_qh,@ginfung
Signed-off-by: @zh_qh

From: @luoyang42
Reviewed-by: @liucunwei,@heleiwang
Signed-off-by: @liucunwei

From: @changzherui
Reviewed-by: @xsmq,@zhoufeng54
Signed-off-by: @zhoufeng54

Fix error msg of pythontokenizer