Permission Denied Error?!

[silverstone1903]

I got this error. Any idea?
ps: ubuntu 14.04 with python 2.7

[EBazarov]

Not sure, but maybe you don't have rights to write files on hard drive. Try to change your permissions or try to launch everything in Saudi.

[EBazarov]

in sudo.

Sorry

[silverstone1903]

@EBazarov I logged as a root user in ubuntu and now I checked the permissions of folder. everything looks normal. Also I launched jupyter notebook with sudo but I got the same error.

[EBazarov]

You have Windows ? If so try to add ".exe" to the end of exec path.

[silverstone1903]

@EBazarov nope. Still permission denied. Btw thanks for your help.

[ArdalanM]

@silverstone1903 have you been able to solve your problem ?
Forgot to mention, but this wrapper has never been tested under python 2, only python 3+

[silverstone1903]

@ArdalanM I guess I've tested under Python 2 and it doesn't work 😄

[martinkersner]

It works under Python 2, but you have to replace following line (occurs 3 times)

line = process.stdout.readline()

with

line = process.communicate()[0]

in models.py. I guess it should work even for Python 3.

[ArdalanM]

@martinkersner thanks for your feedback.

Updated master branch with 63d5a48, hope this solve your problem.

Let me know,
Thanks

[silverstone1903]

Thanks for your solution advice! @martinkersner

I'll try as soon as possible then I'll give you a feedback. @ArdalanM

[silverstone1903]

@ArdalanM still same, permission denied. I re-installed LightGBM and pyLightGBM but nothing changed. Something related about my PC but I don't have any idea 😞

[ternaus]

I get "permission denied" in OS X, but everything is fine in Ubuntu 16.04

[nareshshah139]

I get permission denied in Windows as well. Could someone help. Here's the exact error:

---

PermissionError Traceback (most recent call last)
in ()
21 )
22
---> 23 gbmr.fit(X_train, y_train, test_data=[(X_valid, y_valid)])
24 print("Mean Square Error:", metrics.mean_absolute_error(y_true=(np.exp(y_valid)-1), y_pred=(np.exp(gbmr.predict(X_valid))-1)))

C:\Program Files\Anaconda3\lib\site-packages\pylightgbm\models.py in fit(self, X, y, test_data, init_scores)
129
130 process = subprocess.Popen([self.exec_path, "config={}".format(conf_filepath)],
--> 131 stdout=subprocess.PIPE, bufsize=1)
132
133 else:

C:\Program Files\Anaconda3\lib\subprocess.py in init(self, args, bufsize, executable, stdin, stdout, stderr, preexec_fn, close_fds, shell, cwd, env, universal_newlines, startupinfo, creationflags, restore_signals, start_new_session, pass_fds)
945 c2pread, c2pwrite,
946 errread, errwrite,
--> 947 restore_signals, start_new_session)
948 except:
949 # Cleanup if the child failed starting.

C:\Program Files\Anaconda3\lib\subprocess.py in _execute_child(self, args, executable, preexec_fn, close_fds, pass_fds, cwd, env, startupinfo, creationflags, shell, p2cread, p2cwrite, c2pread, c2pwrite, errread, errwrite, unused_restore_signals, unused_start_new_session)
1222 env,
1223 cwd,
-> 1224 startupinfo)
1225 finally:
1226 # Child is launched. Close the parent's copy of those pipe

PermissionError: [WinError 5] Access is denied

[silverstone1903]

@nareshshah139 welcome to the club 😆

[ArdalanM]

I need to find a Windows/MacOS environment to reproduce this error.

Any help would be much appreciated. The problem has to do with this part
👍

[martinkersner]

I checked how you integrated my suggestion and it turned it you didn't do it at all. For those who are still having difficulties, you can try out my fork (https://github.com/martinkersner/pyLightGBM). It is 14 days old version, but it could help you to solve your problem.

[nareshshah139]

@martinkersner I tried your repo. It still gives the same permission error.

[gugatr0n1c]

I have same issue both on Win10 and LinuxMint...
On mint, I needed to set correctly path for lib:
exec_path = '/home/myUsername/LightGBM/lightgbm'

not
exec_path = '/home/myUsername/LightGBM'
or
exec_path = '/home/myUsername/LightGBM/lib_lightgbm.so'

On win10 server I need to run script as admin for some reason and also setting correct exec_path.
'c:/your_path/LightGBM-master/windows/x64/Release/lightgbm'