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[英]How do I setup a node_modules directory in a Heroku:Python application?
[英]How do I setup python paths for selfmade modules?
我在設置我得到的框架時遇到了麻煩。 您可以在下圖中看到框架的文件夾層次結構:
問題在於您可以在最后一張圖片中看到的tug_resource_monitor_node.py的導入。 進口看起來像:
import rospy
from tug_resource_monitor.srv import *
import rosnode
import os
import psutil
from tug_resource_monitor.msg import NodeInfo, NodeInfoArray
from std_msgs.msg import Header
from tug_python_utils import YamlHelper as Config
我收到以下錯誤消息:No module named tug_resource_monitor.srv
我已經嘗試通過以下方式添加 python 模塊: sys.path.insert(0, "/home/username/catkin_ws/model_based_diagnosis/")
(在tug_resource_monitor_node.py文件的開頭)我也嘗試將路徑添加到.profile通過添加以下行:
export PYTHONPATH=$PYTHONPATH:/home/username/catkin_ws/model_based_diagnosis
不幸的是,以上都沒有奏效。 有人可以幫我嗎?
1 嘗試export PYTHONPATH=$PYTHONPATH:/home/username/catkin_ws/model_based_diagnosis/scripts
2 嘗試from tug_resource_monitor import *
將導入更改為from model_based_diagnosis.tug_resource_monitor.srv import *
將起作用。
catkin_ws/
└── model_based_diagnosis
├── __init__.py
└── tug_resource_monitor
├── scripts
│ └── tug_resource_monitor_node.py
└── srv
├── __init__.py
└── test_import.py
~$ pwd
/Users/username/catkin_ws/model_based_diagnosis/tug_resource_monitor/scripts
~$ python tug_resource_monitor_node.py
import module from srv
Import form /Users/username/catkin_ws/model_based_diagnosis/tug_resource_monitor/srv/test_import.py
和我用來測試的代碼
~$ cat tug_resource_monitor_node.py
import sys
sys.path.insert(0, "/Users/username/catkin_ws")
from model_based_diagnosis.tug_resource_monitor.srv import test_import
print("import module from srv")
test_import.import_test()
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