PyCaret 的 OSError Traceback（最近一次调用最后一次）

Posted 2023-03-29

【中文标题】PyCaret 的 OSError Traceback（最近一次调用最后一次）

【英文标题】：OSError Traceback (most recent call last) for PyCaret

【发布时间】：2022-01-22 04:53:31

【问题描述】：

第一次使用 PyCaret。 使用命令行安装 Anacoda，然后在 Jupyter Notebook 中安装 PyCaret。

PyCaret 安装成功，因为以下代码有效：

from pycaret.datasets import get_data
jewellery = get_data('jewellery') 

但是当使用以下代码时：

from pycaret.clustering import *

出现以下错误：

---

-
OSError                                   Traceback (most recent call last)
/var/folders/2s/mwp2zlp50sb75l3zpcq67szw0000gp/T/ipykernel_16163/1576494110.py in <module>
----> 1 from pycaret.clustering import *
      2 exp_name = setup(data = jewellery)

~/anaconda3/lib/python3.9/site-packages/pycaret/clustering.py in <module>
     14 import ipywidgets as ipw
     15 from typing import List, Tuple, Any, Union, Optional, Dict
---> 16 import pycaret.internal.tabular
     17 
     18 from pycaret.internal.tabular import MLUsecase

~/anaconda3/lib/python3.9/site-packages/pycaret/internal/tabular.py in <module>
     46 import pycaret.containers.models.clustering
     47 import pycaret.containers.models.anomaly
---> 48 import pycaret.internal.preprocess
     49 import pandas as pd
     50 import numpy as np

~/anaconda3/lib/python3.9/site-packages/pycaret/internal/preprocess.py in <module>
     32 from sklearn.ensemble import RandomForestClassifier as rfc
     33 from sklearn.ensemble import RandomForestRegressor as rfr
---> 34 from lightgbm import LGBMClassifier as lgbmc
     35 from lightgbm import LGBMRegressor as lgbmr
     36 import sys

~/anaconda3/lib/python3.9/site-packages/lightgbm/__init__.py in <module>
      6 from pathlib import Path
      7 
----> 8 from .basic import Booster, Dataset, Sequence, register_logger
      9 from .callback import early_stopping, log_evaluation, print_evaluation, record_evaluation, reset_parameter
     10 from .engine import CVBooster, cv, train

~/anaconda3/lib/python3.9/site-packages/lightgbm/basic.py in <module>
    108 
    109 
--> 110 _LIB = _load_lib()
    111 
    112 

~/anaconda3/lib/python3.9/site-packages/lightgbm/basic.py in _load_lib()
     99     if len(lib_path) == 0:
    100         return None
--> 101     lib = ctypes.cdll.LoadLibrary(lib_path[0])
    102     lib.LGBM_GetLastError.restype = ctypes.c_char_p
    103     callback = ctypes.CFUNCTYPE(None, ctypes.c_char_p)

~/anaconda3/lib/python3.9/ctypes/__init__.py in LoadLibrary(self, name)
    458 
    459     def LoadLibrary(self, name):
--> 460         return self._dlltype(name)
    461 
    462     __class_getitem__ = classmethod(_types.GenericAlias)

~/anaconda3/lib/python3.9/ctypes/__init__.py in __init__(self, name, mode, handle, use_errno, use_last_error, winmode)
    380 
    381         if handle is None:
--> 382             self._handle = _dlopen(self._name, mode)
    383         else:
    384             self._handle = handle

OSError: dlopen(/Users/sparsh/anaconda3/lib/python3.9/site-packages/lightgbm/lib_lightgbm.so, 0x0006): Library not loaded: /usr/local/opt/libomp/lib/libomp.dylib
  Referenced from: /Users/sparsh/anaconda3/lib/python3.9/site-packages/lightgbm/lib_lightgbm.so
  Reason: tried: '/usr/local/opt/libomp/lib/libomp.dylib' (no such file), '/usr/local/lib/libomp.dylib' (no such file), '/usr/lib/libomp.dylib' (no such file)

任何帮助将不胜感激？

【参考方案1】：

如果你的操作系统是 Mac。

brew install libomp 

解决问题。

【讨论】：

是的。我在这里也看到了这个解决方案：pycaret.org/install2 你能解释一下我在哪里运行这个命令吗？在终端或 Jupyter 笔记本中？

Ofcoure 在终端。看看这个brew.sh

完成所有步骤。问题依旧

你在pycaret中使用virtualenv吗？

让我检查一下。我遇到了和你一样的问题。首先是我没有 brew install libomp。其次是我没有使用虚拟环境。您似乎在使用 anaconda3 而没有 virtualenv。看一下这个 ！你需要为你的 PyCaret 使用 virtualenv 因为 PyCaret 有很多依赖项。 docs.conda.io/projects/conda/en/latest/user-guide/tasks/… 设置好 virtualenv 后，首先安装 PyCaret。