Pycharm 错误:ModuleNotFoundError:没有名为“pymoo.algorithms”的模块; “pymoo”不是一个包

问题描述 投票:0回答:2

我尝试在 PyCharm 中运行 pymoo for NSGA2 的示例代码。

from pymoo.algorithms.moo.nsga2 import NSGA2
from pymoo.factory import get_problem
from pymoo.optimize import minimize
from pymoo.visualization.scatter import Scatter

problem = get_problem("zdt1")

algorithm = NSGA2(pop_size=100)

res = minimize(problem,
               algorithm,
               ('n_gen', 200),
               seed=1,
               verbose=False)
plot = Scatter()
plot.add(problem.pareto_front(), plot_type="line", color="black", alpha=0.7)
plot.add(res.F, facecolor="none", edgecolor="red")
plot.show()

它总是给我这个错误:

/Users/myname/opt/miniconda3/envs/namename/bin/python /Users/myname/PycharmProjects/name/namename/pymoo.py
Traceback (most recent call last):
  File "/Users/myname/PycharmProjects/name/namename/pymoo.py", line 1, in <module>
    from pymoo.algorithms.moo.nsga2 import NSGA2
  File "/Users/mynae/PycharmProjects/name/namename/pymoo.py", line 1, in <module>
    from pymoo.algorithms.moo.nsga2 import NSGA2
ModuleNotFoundError: No module named 'pymoo.algorithms'; 'pymoo' is not a package

我已经在首选项下下载了 pymoo,当我再次尝试在终端中下载 pymoo 时,它说所有软件包都已安装。

有人可以帮忙吗?

python pycharm pymoo
2个回答
0
投票

重命名您的文件,例如重命名为

pymoo_test.py
(或完全其他名称),它应该可以工作。

您的堆栈跟踪告诉我您的文件名为

pymoo.py
:

File "/Users/mynae/PycharmProjects/name/namename/pymoo.py", line 1, in <module>

文件名是导致您出现问题的原因。发生的情况是,由于名称的原因,正在尝试从您的

pymoo.py
文件导入导入,并且您尝试从同一文件中的
pymoo.<...>
导入。


0
投票

我尝试在 Jupyter 笔记本中运行相同的代码:

from pymoo.algorithms.moo.nsga2 import NSGA2
from pymoo.factory import get_problem
from pymoo.optimize import minimize
from pymoo.visualization.scatter import Scatter

problem = get_problem("zdt1")

algorithm = NSGA2(pop_size=100)

res = minimize(problem,
               algorithm,
               ('n_gen', 200),
               seed=1,
               verbose=False)
plot = Scatter()
plot.add(problem.pareto_front(), plot_type="line", color="black", alpha=0.7)
plot.add(res.F, facecolor="none", edgecolor="red")
plot.show()

但出现以下错误:

---------------------------------------------------------------------------
ModuleNotFoundError                       Traceback (most recent call last)
~\AppData\Local\Temp/ipykernel_10604/691024984.py in <module>
----> 1 from pymoo.algorithms.moo.nsga2 import NSGA2
      2 from pymoo.factory import get_problem
      3 from pymoo.optimize import minimize
      4 from pymoo.visualization.scatter import Scatter
      5 

ModuleNotFoundError: No module named 'pymoo.algorithms.moo'

我已经下载了 pymoo,当我再次尝试在终端中下载 pymoo 时,它说所有软件包都已安装。

有人可以帮忙吗?

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