UserWarning: [Errno 13] Permission denied. joblib will operate in serial mode warnings.warn('%s. joblib will operate in serial mode' % (e,))

Question

I am running a code in the Python 3 kernel in the Jupyter Notebook. My first cell looks like this

import numpy as np
import pandas as pd
import scipy as sp
import emcee 

from sklearn.pipeline import Pipeline
from sklearn.compose import TransformedTargetRegressor
from sklearn.neural_network import MLPRegressor
from sklearn.preprocessing import RobustScaler
from sklearn.ensemble import RandomForestRegressor
from sklearn.linear_model import LinearRegression
from sklearn.model_selection import cross_val_score, ShuffleSplit, KFold

from scipy import stats

from math import *
import sys
import re
import os
from itertools import chain

%matplotlib inline
import matplotlib
import matplotlib.pyplot as plt

from tqdm import tqdm_notebook as tqdm

When I run this single cell in the kernel, I get this error:

/home/nick/snap/jupyter/common/lib/python3.7/site-packages/joblib/_multiprocessing_helpers.py:45: UserWarning: [Errno 13] Permission denied.  joblib will operate in serial mode
  warnings.warn('%s.  joblib will operate in serial mode' % (e,))

I am pretty new to JN, so I was wondering what this error means? My code runs fine regardless.

Thanks in advance!

Answer 1

please take a look at to this thread :

Python multiprocessing: Permission denied

it is said to be a permission error on linux systems for the /dev/shm directory..