43 lines
1.2 KiB
Python
43 lines
1.2 KiB
Python
# encoding: UTF-8
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'''
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动态载入所有的策略类
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'''
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import os
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import importlib
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# 用来保存策略类的字典
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STRATEGY_CLASS = {}
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# 获取目录路径
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path = os.path.abspath(os.path.dirname(__file__))
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print 'init {0}'.format(path)
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# 遍历strategy目录下的文件
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for root, subdirs, files in os.walk(path):
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for name in files:
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# 只有文件名中包含strategy且非.pyc的文件，才是策略文件
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if 'strategy' in name and '.pyc' not in name:
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# 模块名称需要上前缀
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moduleName = 'ctaStrategy.strategy.' + name.replace('.py', '')
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print 'loading {0}'.format(moduleName)
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try:
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# 使用importlib动态载入模块
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module = importlib.import_module(moduleName)
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except:
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print 'load fail'
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continue
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# 遍历模块下的对象，只有名称中包含'Strategy'的才是策略类
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for k in dir(module):
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if 'Strategy' in k:
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print 'adding {0} into STRATEGY_CLASS'.format(k)
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v = module.__getattribute__(k)
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STRATEGY_CLASS[k] = v
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print 'finished load modules' |