url lib error python

Question

I am trying to download a dataset file via a URL,but the problem is I am receiving this message.

 File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/urllib/request.py", line 1320, in do_open
    raise URLError(err)
urllib.error.URLError: <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:749)>

Process finished with exit code 1

I am not sure what is it that I am doing wrong, since I am following a tutorial online. Here is the file I am running, everything is okay but the problem is when it comes the time to run the url for downloading.

print("download will complete at about 423 MB")


import sys

if sys.version_info[0] >= 3:
    from urllib.request import urlretrieve
else:
    from urllib import urlretrieve

url = "https://www.cs.cmu.edu/~./enron/enron_mail_20150507.tgz"
urlretrieve(url, filename="../enron_mail_20150507.tgz")
print("download complete!")


print()
print("unzipping Enron dataset (this may take a while)")
import tarfile
import os
os.chdir("..")
tfile = tarfile.open("enron_mail_20150507.tgz", "r:gz")
tfile.extractall(".")

Check this question: http://stackoverflow.com/questions/27835619/ssl-certificate-verify-failed-error — zwer, Feb 19 '17 at 19:43
@zwer I checked that, but I wasnt sure how import ssl can work here, can you help? — Masnad Nihit, Feb 19 '17 at 19:44

score 1 · Answer 1 · answered Feb 19 '17 at 20:36

Simplest solution to the problem you're trying to solve: use HTTP instead of HTTPS.

url = "http://www.cs.cmu.edu/~./enron/enron_mail_20150507.tgz"

If you're more concerned about making a secure connection, then the post mentioned by @zwer is all you need. Just keep in mind that urlretrieve accepts a keyword argument context just the same way as urlopen

url lib error python

1 Answers1