Failed to import Flows due to incorrect lightgbm installation (macOS)

[atselikov]

Incorrect lightgbm installation

To Reproduce

1. Create venv
2. Install packages from requirements.txt
3. install ML navigator
4. import Flows

Proposed solution
brew install lightgbm

Desktop env

• OS: macOS Mojave
• "ML-Navigator", version="0.0.3",
• python 3.7

Error message

----> 3 from flows.flows import Flows
      4 

~/work/ML-Navigator/flows/flows.py in <module>
     30 from preprocessing.utils import check_if_target_columns_are_imbalanced
     31 from preprocessing.utils import read_data
---> 32 from training.training import model_training
     33 from visualization.visualization import compare_statistics
     34 

~/work/ML-Navigator/training/training.py in <module>
      5 warnings.filterwarnings('ignore')
      6 
----> 7 import lightgbm as lgb
      8 import pandas as pd
      9 import numpy as np

~/work/ML-Navigator/mlnav/lib/python3.7/site-packages/lightgbm/__init__.py in <module>
      6 from __future__ import absolute_import
      7 
----> 8 from .basic import Booster, Dataset
      9 from .callback import (early_stopping, print_evaluation, record_evaluation,
     10                        reset_parameter)

~/work/ML-Navigator/mlnav/lib/python3.7/site-packages/lightgbm/basic.py in <module>
     32 
     33 
---> 34 _LIB = _load_lib()
     35 
     36 

~/work/ML-Navigator/mlnav/lib/python3.7/site-packages/lightgbm/basic.py in _load_lib()
     27     if len(lib_path) == 0:
     28         return None
---> 29     lib = ctypes.cdll.LoadLibrary(lib_path[0])
     30     lib.LGBM_GetLastError.restype = ctypes.c_char_p
     31     return lib

/usr/local/Cellar/python/3.7.4_1/Frameworks/Python.framework/Versions/3.7/lib/python3.7/ctypes/__init__.py in LoadLibrary(self, name)
    440 
    441     def LoadLibrary(self, name):
--> 442         return self._dlltype(name)
    443 
    444 cdll = LibraryLoader(CDLL)

/usr/local/Cellar/python/3.7.4_1/Frameworks/Python.framework/Versions/3.7/lib/python3.7/ctypes/__init__.py in __init__(self, name, mode, handle, use_errno, use_last_error)
    362 
    363         if handle is None:
--> 364             self._handle = _dlopen(self._name, mode)
    365         else:
    366             self._handle = handle

OSError: dlopen(/Users/alex/work/ML-Navigator/mlnav/lib/python3.7/site-packages/lightgbm/lib_lightgbm.so, 6): Library not loaded: /usr/local/opt/libomp/lib/libomp.dylib
  Referenced from: /Users/alex/work/ML-Navigator/mlnav/lib/python3.7/site-packages/lightgbm/lib_lightgbm.so
  Reason: image not found