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

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

Turn off lock only after all data is cached

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

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

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

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

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

Fix error msg of pythontokenizer

From: @yao_yf
Reviewed-by: @stsuteng,@kisnwang
Signed-off-by: @stsuteng

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

From: @xulei2020
Reviewed-by: 
Signed-off-by:

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

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

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

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

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

From: @lichen666
Reviewed-by: @kisnwang,@zhunaipan
Signed-off-by: @zhunaipan

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

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

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

From: @luoyang42
Reviewed-by: 
Signed-off-by: