pyLightGBM is looking for LIGHTGBM_EXEC environment Variable
Opened this issue · 1 comments
Hello,
I have been trying to run the code of pylightgbm but it raises the exception that
" pyLightGBM is looking for 'LIGHTGBM_EXEC' environment variable, cannot be found.
exec_path will be deprecated in favor of environment variable "
I have also tried specifying the path to the lightgbm package installed in the library as well as pointed the path towards the lightgbm or pylightgbm package files which were downloaded from their respective github sources, but none of the files seem to provide the 'LIGHTGBM_EXEC' file/folder.
That is why i think the exception is getting raised again and again, ?? Is there a workaround this Issue.
Also, please see that I have tried using the following link which i think could probably provide a work around, but the last two lines while using conda prompt are NOT clear. That is, pip install requirements points to which source, they are certainly not present in pep8 package that was downloaded. Why are we using setup.py at the end ?? What package does this try install considering pip was already used to install packages
https://github.com/ArdalanM/pyLightGBM/blob/master/.travis.yml
- conda create -q -n test-environment python=$TRAVIS_PYTHON_VERSION
- source activate test-environment
- pip install pytest pytest-cov python-coveralls pytest-xdist coverage #we need this version of coverage for coveralls.io to work
- pip install pep8 pytest-pep8
_- pip install -r requirements.txt - python setup.py install_
Any suggestion, feedback is welcome
Update: Earlier I had forgot to mention the .exe with ~LightGBM/lightgbm as it was recommended in the documents page, but even after fixing that now, additional errors seem to have appeared as well. Note that I am using Windows 10
exec_path='C:\Users\hp\LightGBM\lightgbm.exe'
and Here is the full list of error information
Initialization
-----------------------------------------------------------------------------------------------------------
Step | Time | Value | bagging_fraction | feature_fraction | min_data_in_leaf | num_leaves |
pyLightGBM is looking for 'LIGHTGBM_EXEC' environment variable, cannot be found.
exec_path will be deprecated in favor of environment variable
pyLightGBM is looking for 'LIGHTGBM_EXEC' environment variable, cannot be found.
exec_path will be deprecated in favor of environment variable
---------------------------------------------------------------------------
FileNotFoundError Traceback (most recent call last)
<ipython-input-36-4c00f17520bd> in <module>()
11 )
12
---> 13 gbmrBO.maximize(init_points=init_points, n_iter=num_iter)
14
15 print('Final Results')
C:\Anaconda3\lib\site-packages\bayes_opt\bayesian_optimization.py in maximize(self, init_points, n_iter, acq, kappa, xi, **gp_params)
247 if self.verbose:
248 self.plog.print_header()
--> 249 self.init(init_points)
250
251 y_max = self.Y.max()
C:\Anaconda3\lib\site-packages\bayes_opt\bayesian_optimization.py in init(self, init_points)
102 for x in self.init_points:
103
--> 104 y_init.append(self.f(**dict(zip(self.keys, x))))
105
106 if self.verbose:
<ipython-input-35-89b948a81f4e> in gbmr_eval(num_leaves, min_data_in_leaf, feature_fraction, bagging_fraction, seed)
29 )
30
---> 31 score = cross_val_score(gbmr, X=X, y=y, scoring=make_scorer(score_func=mae, greater_is_better=False), cv=5, verbose=0, pre_dispatch=1)
32 return np.array(score).mean()
C:\Anaconda3\lib\site-packages\sklearn\model_selection\_validation.py in cross_val_score(estimator, X, y, groups, scoring, cv, n_jobs, verbose, fit_params, pre_dispatch)
138 train, test, verbose, None,
139 fit_params)
--> 140 for train, test in cv_iter)
141 return np.array(scores)[:, 0]
142
C:\Anaconda3\lib\site-packages\sklearn\externals\joblib\parallel.py in __call__(self, iterable)
756 # was dispatched. In particular this covers the edge
757 # case of Parallel used with an exhausted iterator.
--> 758 while self.dispatch_one_batch(iterator):
759 self._iterating = True
760 else:
C:\Anaconda3\lib\site-packages\sklearn\externals\joblib\parallel.py in dispatch_one_batch(self, iterator)
606 return False
607 else:
--> 608 self._dispatch(tasks)
609 return True
610
C:\Anaconda3\lib\site-packages\sklearn\externals\joblib\parallel.py in _dispatch(self, batch)
569 dispatch_timestamp = time.time()
570 cb = BatchCompletionCallBack(dispatch_timestamp, len(batch), self)
--> 571 job = self._backend.apply_async(batch, callback=cb)
572 self._jobs.append(job)
573
C:\Anaconda3\lib\site-packages\sklearn\externals\joblib\_parallel_backends.py in apply_async(self, func, callback)
107 def apply_async(self, func, callback=None):
108 """Schedule a func to be run"""
--> 109 result = ImmediateResult(func)
110 if callback:
111 callback(result)
C:\Anaconda3\lib\site-packages\sklearn\externals\joblib\_parallel_backends.py in __init__(self, batch)
324 # Don't delay the application, to avoid keeping the input
325 # arguments in memory
--> 326 self.results = batch()
327
328 def get(self):
C:\Anaconda3\lib\site-packages\sklearn\externals\joblib\parallel.py in __call__(self)
129
130 def __call__(self):
--> 131 return [func(*args, **kwargs) for func, args, kwargs in self.items]
132
133 def __len__(self):
C:\Anaconda3\lib\site-packages\sklearn\externals\joblib\parallel.py in <listcomp>(.0)
129
130 def __call__(self):
--> 131 return [func(*args, **kwargs) for func, args, kwargs in self.items]
132
133 def __len__(self):
C:\Anaconda3\lib\site-packages\sklearn\model_selection\_validation.py in _fit_and_score(estimator, X, y, scorer, train, test, verbose, parameters, fit_params, return_train_score, return_parameters, return_n_test_samples, return_times, error_score)
236 estimator.fit(X_train, **fit_params)
237 else:
--> 238 estimator.fit(X_train, y_train, **fit_params)
239
240 except Exception as e:
C:\Anaconda3\lib\site-packages\pylightgbm\models.py in fit(self, X, y, test_data, init_scores)
141 process.wait()
142
--> 143 with open(self.param['output_model'], mode='r') as file:
144 self.model = file.read()
145 shutil.rmtree(tmp_dir)
FileNotFoundError: [Errno 2] No such file or directory: 'C:\\Users\\hp\\AppData\\Local\\Temp\\tmp5g151j0c\\LightGBM_model.txt'