title: UserWarning: [Errno 13] Permission denied. joblib will operate in serial mode warnings.warn('%s. joblib will operate in serial mode' % (e,))
body: <p>I am running a code in the Python 3 kernel in the Jupyter Notebook. My first cell looks like this</p>
  <pre><code>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
  </code></pre>
  <p>When I run this single cell in the kernel, I get this error:</p>
  <pre><code>/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,))
  
  </code></pre>
  <p>I am pretty new to JN, so I was wondering what this error means? My code runs fine regardless.</p>
  <p>Thanks in advance!</p>