rqalpha mod扩展命名问题导致找不到包

ccliuyang commented 4 years ago

1 环境

rqalpha 4.1.3 python 3.7.4 windows

2 问题

rqalpha支持mod方式扩展，但是在mod命名上有个小问题，有一个这样的模块rqalpha_mod_rqfactor, 和rqfactor包，如果我采用rqalpha run -f xxx.py 方式运行，则在rqalpha_mod_rqfactor包中能够找到rqfactor 模块，如果我用python xxx.py方式运行，则在rqalpha_mod_rqfactor代码中找不到rqfactor模块，但是如果我把rqfactor包名称改为rqfactor2，则在rqalpha_mod_rqfactor中能够找到rqfactor2。所以在rqalpha mod包命令的时候，后边的部分不能与已有的包名重复，这样会导致采用python xx.py 方式运行的时候，找不到这个包。这个可能是rqalpha处理mod的时候，没处理好？或者是怎么回事？

Cuizi7 commented 4 years ago

不好意思，没明白“在rqalpha_mod_rqfactor代码中找不到rqfactor模块”是什么意思，麻烦详细描述或附上测试代码。

ccliuyang commented 4 years ago

其出错信息是这样的：

[2020-06-20 17:15:01.293154] ERROR: user_system_log: 策略运行产生异常
Traceback (most recent call last):
  File "D:\Miniconda3\lib\site-packages\rqalpha\main.py", line 140, in run
    mod_handler.set_env(env)
  File "D:\Miniconda3\lib\site-packages\rqalpha\mod\__init__.py", line 56, in set_env
    mod = mod_module.load_mod()
  File "D:\Miniconda3\lib\site-packages\rqalpha_mod_rqfactor\__init__.py", line 8, in load_mod
    from .mod import RQFactorMod
  File "D:\Miniconda3\lib\site-packages\rqalpha_mod_rqfactor\mod.py", line 23, in <module>
    from .indicator_board import BTIndicatorBoard, PTIndicatorBoard
  File "D:\Miniconda3\lib\site-packages\rqalpha_mod_rqfactor\indicator_board.py", line 26, in <module>
    from rqfactor.interface import AbstractFactor, UserDefinedLeafFactor
ModuleNotFoundError: No module named 'rqfactor.interface'; 'rqfactor' is not a package
[2020-06-20 17:15:01.294154] ERROR: system_log: 策略运行产生异常
Traceback (most recent call last):
  File "D:\Miniconda3\lib\site-packages\rqalpha\main.py", line 140, in run
    mod_handler.set_env(env)
  File "D:\Miniconda3\lib\site-packages\rqalpha\mod\__init__.py", line 56, in set_env
    mod = mod_module.load_mod()
  File "D:\Miniconda3\lib\site-packages\rqalpha_mod_rqfactor\__init__.py", line 8, in load_mod
    from .mod import RQFactorMod
  File "D:\Miniconda3\lib\site-packages\rqalpha_mod_rqfactor\mod.py", line 23, in <module>
    from .indicator_board import BTIndicatorBoard, PTIndicatorBoard
  File "D:\Miniconda3\lib\site-packages\rqalpha_mod_rqfactor\indicator_board.py", line 26, in <module>
    from rqfactor.interface import AbstractFactor, UserDefinedLeafFactor
ModuleNotFoundError: No module named 'rqfactor.interface'; 'rqfactor' is not a package
[2020-06-20 17:15:01.298156] ERROR: system_log: tear down fail for rqfactor
Traceback (most recent call last):
  File "D:\Miniconda3\lib\site-packages\rqalpha\main.py", line 140, in run
    mod_handler.set_env(env)
  File "D:\Miniconda3\lib\site-packages\rqalpha\mod\__init__.py", line 56, in set_env
    mod = mod_module.load_mod()
  File "D:\Miniconda3\lib\site-packages\rqalpha_mod_rqfactor\__init__.py", line 8, in load_mod
    from .mod import RQFactorMod
  File "D:\Miniconda3\lib\site-packages\rqalpha_mod_rqfactor\mod.py", line 23, in <module>
    from .indicator_board import BTIndicatorBoard, PTIndicatorBoard
  File "D:\Miniconda3\lib\site-packages\rqalpha_mod_rqfactor\indicator_board.py", line 26, in <module>
    from rqfactor.interface import AbstractFactor, UserDefinedLeafFactor
ModuleNotFoundError: No module named 'rqfactor.interface'; 'rqfactor' is not a package

发生的原因是直接执行 python xxx.py 如果是rqalpha-plus run -f xxx.py 则不会报此错误。然后我调试之后原因是rqalpha_mod_rqfactor 和rqfactor包重名了。

ccliuyang commented 4 years ago

如果将python下的rqfactor包改为rqfactor2,然后在扩展的mod rqalpha_mod_rqfactor中调用rqfactor2包，则无问题。无论是采用rqalpha-plus run -f xxx.py 还是python xxx.py

ccliuyang commented 4 years ago

奇怪，我又试了下，不是这个命名的问题，改成别的，不会出现这个问题。

ccliuyang commented 4 years ago

终于知道到底是什么原因了，原来是我在我策略的目录下有一个rqfactor.py的策略文件，然后策略在执行的时候，找rqfactor这个包找的是这个文件，不怪说出错误！

ricequant / rqalpha

rqalpha mod扩展命名问题导致找不到包 #523

1 环境

2 问题