Merge pull request #52 from wangxiao1021/api

fix install

paddlepalm/__init__.py

-import downloader
+from . import downloader
 # from mtl_controller import Controller 
-import controller
-import optimizer
-import lr_sched
-import backbone
-import reader
-import head
+#import controller
+from . import optimizer
+from . import lr_sched
+from . import backbone
+from . import reader
+from . import head
 
 
-from trainer import Trainer
-from multihead_trainer import MultiHeadTrainer
+from .trainer import Trainer
+from .multihead_trainer import MultiHeadTrainer
 
-del interface
-del task_instance
-del default_settings
-del utils
+#del interface
+#del task_instance
+#del default_settings
+#del utils

paddlepalm/backbone/__init__.py

 
-from ernie import ERNIE
-from bert import BERT
+from .ernie import ERNIE
+from .bert import BERT
 

paddlepalm/distribute/__init__.py

@@ -5,5 +5,5 @@ import multiprocessing
 gpu_dev_count = int(fluid.core.get_cuda_device_count())
 cpu_dev_count = int(os.environ.get('CPU_NUM', multiprocessing.cpu_count()))
 
-from reader import yield_pieces, data_feeder, decode_fake
+from .reader import yield_pieces, data_feeder, decode_fake
 

paddlepalm/distribute/reader.py

 
 from . import gpu_dev_count, cpu_dev_count
-import Queue
+try:
+    import queue
+except ImportError:
+    import Queue as queue
 from threading import Thread
 
 dev_count = gpu_dev_count if gpu_dev_count > 0 else cpu_dev_count

paddlepalm/downloader.py

-from _downloader import *
\ No newline at end of file
+from ._downloader import *

paddlepalm/head/__init__.py

 
-from cls import Classify
-from match import Match
-from ner import SequenceLabel
-from mrc import MRC
-from mlm import MaskLM
+from .cls import Classify
+from .match import Match
+from .ner import SequenceLabel
+from .mrc import MRC
+from .mlm import MaskLM

paddlepalm/lr_sched/__init__.py

 
-from slanted_triangular_schedualer import TriangularSchedualer
-from warmup_schedualer import WarmupSchedualer
+from .slanted_triangular_schedualer import TriangularSchedualer
+from .warmup_schedualer import WarmupSchedualer
 

paddlepalm/optimizer/__init__.py

 
-from adam import Adam
+from .adam import Adam

paddlepalm/reader/__init__.py

 
-from cls import ClassifyReader
-from match import MatchReader
-from seq_label import SequenceLabelReader
-from mrc import MRCReader
-from mlm import MaskLMReader
+from .cls import ClassifyReader
+from .match import MatchReader
+from .seq_label import SequenceLabelReader
+from .mrc import MRCReader
+from .mlm import MaskLMReader

paddlepalm/utils/__init__.py

 
-import basic_helper
-import config_helper
+from . import basic_helper
+from . import config_helper
 

paddlepalm/utils/basic_helper.py

@@ -2,7 +2,7 @@
 import os
 import json
 import yaml
-from config_helper import PDConfig
+from .config_helper import PDConfig
 import logging
 from paddle import fluid