Python3 - "NameError: ... " when importing from Experta
Python3 - "NameError: ... " when importing from Experta
你好,
我使用 Python 3.8.3 在 Conda 环境中安装了 Experta,我的所有程序都运行良好,但是当我尝试 运行 此代码导入 Experta 库时,出现以下错误:"NameError: name 'Fact' is not defined" .
from random import choice
from experta import *
class Light(Fact):
"""Info about the traffic light."""
pass
class RobotCrossStreet(KnowledgeEngine):
@Rule(Light(color='green'))
def green_light(self):
print("Walk")
@Rule(Light(color='red'))
def red_light(self):
print("Don't walk")
@Rule(AS.light << Light(color=L('yellow') | L('blinking-yellow')))
def cautious(self, light):
print("Be cautious because light is", light["color"])
engine = RobotCrossStreet()
engine.reset()
engine.declare(Light(color=choice(['green', 'yellow', 'blinking-yellow', 'red'])))
engine.run()
错误:
Traceback (most recent call last):
File "experta.py", line 2, in <module>
from experta import *
File "/home/karuro/Documents/Magierin/UPN/IntelligentSystems/Experta/experta.py", line 5, in <module>
class Light(Fact):
NameError: name 'Fact' is not defined
谁能帮我解决这个问题?
检查是否安装了 experta,如果没有安装,请尝试使用 --user(root)
pip install experta --user
使用名称 "experta.py" 执行时出现问题。
解决方案:
使用不同的名称克隆文件并重新运行程序。
你好,
我使用 Python 3.8.3 在 Conda 环境中安装了 Experta,我的所有程序都运行良好,但是当我尝试 运行 此代码导入 Experta 库时,出现以下错误:"NameError: name 'Fact' is not defined" .
from random import choice
from experta import *
class Light(Fact):
"""Info about the traffic light."""
pass
class RobotCrossStreet(KnowledgeEngine):
@Rule(Light(color='green'))
def green_light(self):
print("Walk")
@Rule(Light(color='red'))
def red_light(self):
print("Don't walk")
@Rule(AS.light << Light(color=L('yellow') | L('blinking-yellow')))
def cautious(self, light):
print("Be cautious because light is", light["color"])
engine = RobotCrossStreet()
engine.reset()
engine.declare(Light(color=choice(['green', 'yellow', 'blinking-yellow', 'red'])))
engine.run()
错误:
Traceback (most recent call last):
File "experta.py", line 2, in <module>
from experta import *
File "/home/karuro/Documents/Magierin/UPN/IntelligentSystems/Experta/experta.py", line 5, in <module>
class Light(Fact):
NameError: name 'Fact' is not defined
谁能帮我解决这个问题?
检查是否安装了 experta,如果没有安装,请尝试使用 --user(root)
pip install experta --user
使用名称 "experta.py" 执行时出现问题。
解决方案:
使用不同的名称克隆文件并重新运行程序。