Refine python inference api

[jiweibo]

PR types

New features

PR changes

APIS

Describe

Add 2.0 inference python API according to 2.0 C++ inference API #26774

from paddle.fluid.inference import Config, create_predictor, get_version, PredictorPool
# init config
...
# init predictor
predictor = create_predictor(config)

# get input handle
input_names = predictor.get_input_names()
input_handle = predictor.get_input_handle(input_names[0])

# set input data
...

# run
predictor.run()

# get output handle
output_names = predictor.get_output_names()
output_hanlde = predictor.get_output_handle(output_names[0])

[paddle-bot-old]

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[Superjomn]

LGTM