vnpy/trader/gateway/__init__.py

# encoding: UTF-8

'''
动态载入所有的Gateway
'''

import os
import importlib
import traceback

# 用来保存Gateway类的字典
GATEWAY_DICT = {}

# modified by Incense Lee
# 只加载指定的gateway清单

# 需要加载的gateway清单
load_gateways = ['ctpGateway']

# 逐一加载
for load_gateway in load_gateways:
    # 模块名称需要上前缀
    moduleName = 'gateway.' + load_gateway
    print u'load Module:{0}'.format(moduleName)
    try:
        # 使用importlib动态载入模块，并保存到字典中
        module = importlib.import_module(moduleName)
        GATEWAY_DICT[module.gatewayName] = module
    except Exception as ex:
        print u'Load {0} exception:{1}'.format(moduleName, ex)
        traceback.print_exc()

"""
# 获取目录路径
path = os.path.abspath(os.path.dirname(__file__))

# 遍历strategy目录下的文件
for root, subdirs, files in os.walk(path):
    if path != root:
        continue
    
    for foldername in subdirs:
        # 接口目录名中必须含有Gateway
        if 'Gateway' in foldername:

            # 排除不要加载的gateway模块
            if foldername not in load_gateways:
                continue

            # 模块名称需要上前缀
            moduleName = 'gateway.' + foldername
            print u'load Module:{0}'.format(moduleName)
            try:
                # 使用importlib动态载入模块，并保存到字典中
                module = importlib.import_module(moduleName)
                GATEWAY_DICT[module.gatewayName] = module
            except Exception as ex:
                print u'Load {0} exception:{1}'.format(moduleName, ex)
                traceback.print_exc()

"""