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ydl_opts = { 'format' : 'bestaudio/best' , 'postprocessors' : [{ 'key' : 'FFmpegExtractAudio' , 'preferredcodec' : 'mp3' , 'preferredquality' : '192' ,
    }],
} with youtube_dl.YoutubeDL(ydl_opts) as ydl:
    ydl.download(['YOUTUBE URL' ])   I was hoping it would convert the Youtube video to a URL file. I got a really long error which basically repeated this: [0;31mERROR:[0m Unable to download webpage:  (caused by URLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1108)')))  I have searched online but a unsure on how to solve this problem?  (https://stackoverflow.com/questions/tagged/python) (show questions tagged 'python') python  (https://stackoverflow.com/questions/tagged/youtube-dl) (show questions tagged 'youtube-dl') youtube-dl      (https://stackoverflow.com/q/60158087) (Short permalink to this question) Share   (https://stackoverflow.com/posts/60158087/edit) Improve this question  Follow  Follow this question to receive notifications      asked (2020-02-10 20:40:09Z) Feb 10, 2020 at 20:40     user12867493user12867493        4 (number of 'useful comment' votes received) 1   Means exactly what it said -- the list of CA certificates backing your Python interpreter's SSL implementation doesn't include a CA signing the certificate used by the server for the site purporting to be YouTube (this could mean your local CA certs are out-of-date, or it could mean that your Internet connection is having connections to YouTube intercepted and replaced with some other site, possibly something that pretends to be YouTube but injects hostile javascript). Charles Duffy – (https://stackoverflow.com/users/14122/charles-duffy) (298,994 reputation) Charles Duffy  2020-02-10 20:47:07 +00:00 Commented (2020-02-10 20:47:07Z, License: CC BY-SA 4.0) Feb 10, 2020 at 20:47   (this comment was edited 1 time)        (number of 'useful comment' votes received) 1   ...it's not a problem with your code, so I don't know what you expect us to do here. Talk to your friendly local sysadmin; how to update the CA cert list varies by operating system / Linux distro / etc. Charles Duffy – (https://stackoverflow.com/users/14122/charles-duffy) (298,994 reputation) Charles Duffy  2020-02-10 20:47:43 +00:00 Commented (2020-02-10 20:47:43Z, License: CC BY-SA 4.0) Feb 10, 2020 at 20:47   (this comment was edited 1 time)          @CharlesDuffy how can I fix this? user12867493 – user12867493  2020-02-10 20:47:58 +00:00 Commented (2020-02-10 20:47:58Z, License: CC BY-SA 4.0) Feb 10, 2020 at 20:47        I take it by that question that you don't have a friendly local sysadmin? First question: Which operating system are you running? Charles Duffy – (https://stackoverflow.com/users/14122/charles-duffy) (298,994 reputation) Charles Duffy  2020-02-10 20:49:28 +00:00 Commented (2020-02-10 20:49:28Z, License: CC BY-SA 4.0) Feb 10, 2020 at 20:49        (Use comments to ask for more information or suggest improvements. Avoid answering questions in comments.) Add a comment  |  (Expand to show all comments on this post)        1 Answer 1   Sorted by:  (https://stackoverflow.com/questions/60158087/youtubedl-certificate-verify-failed?answertab=scoredesc#tab-top) Reset to default   (scoredesc) Highest score (default)  (trending) Trending (recent votes count more)  (modifieddesc) Date modified (newest first)  (createdasc) Date created (oldest first)            This answer is useful 100  (This answer is not useful)         Save this answer. (Loading when this answer was accepted…)     (https://stackoverflow.com/posts/60158194/timeline)    Show activity on this post.   Add the no-check-certificate parameter to the command: youtube-dl --no-check-certificate   This option was renamed to --no-check-certificates starting with version 2021.10.09 (inclusive).   (https://stackoverflow.com/a/60158194) (Short permalink to this answer) Share   (https://stackoverflow.com/posts/60158194/edit) Improve this answer  Follow  Follow this answer to receive notifications      (https://stackoverflow.com/posts/60158194/revisions) (show all edits to this post) edited (2022-09-01 21:35:15Z) Sep 1, 2022 at 21:35    (https://stackoverflow.com/users/1155000/daniel-kamil-kozar) (Daniel Kamil Kozar's user avatar)    (https://stackoverflow.com/users/1155000/daniel-kamil-kozar) Daniel Kamil Kozar (reputation score 19,534) 19.5k (5 gold badges)  5  5 gold badges (53 silver badges)  53  53 silver badges (70 bronze badges)  70  70 bronze badges     answered (2020-02-10 20:49:16Z) Feb 10, 2020 at 20:49   (https://stackoverflow.com/users/12874549/nt4) (nt4's user avatar)    (https://stackoverflow.com/users/12874549/nt4) nt4 nt4 (reputation score) 1,034 (1 gold badge)  1  1 gold badge (8 silver badges)  8  8 silver badges (4 bronze badges)  4  4 bronze badges          Sign up to request clarification or add additional context in comments.      9 Comments    Add a comment    (https://stackoverflow.com/users/14122/charles-duffy)   Charles Duffy (https://stackoverflow.com/users/14122/charles-duffy) Charles Duffy (2020-02-10T20:49:50.9Z) Over a year ago          ...if you don't care about whether the site you're connecting to claiming to be YouTube is in fact the real thing. 2020-02-10T20:49:50.9Z+00:00    6      Reply                  user12867493 user12867493 (2020-02-10T21:09:45.913Z) Over a year ago          Where do I add this since I run it in IDLE? 2020-02-10T21:09:45.913Z+00:00    0      Reply               (https://stackoverflow.com/users/14122/charles-duffy)   Charles Duffy (https://stackoverflow.com/users/14122/charles-duffy) Charles Duffy (2020-02-10T21:32:07.97Z) Over a year ago  (Edited 3 times)             Reading (https://github.com/ytdl-org/youtube-dl/blob/master/youtube_dl/__init__.py) github.com/ytdl-org/youtube-dl/blob/master/youtube_dl/… , the plain reading is that you should probably set 'no_check_certificate': True in ydl_opts if you want this workaround -- which, again, I strongly recommend against; better to fix your system's CA certificate list (if that's the problem), or find the source of whatever monkey-in-the-middle is intercepting connections to YouTube (if it's that). 2020-02-10T21:32:07.97Z+00:00    3      Reply               (https://stackoverflow.com/users/12874549/nt4)   nt4 (https://stackoverflow.com/users/12874549/nt4) nt4 (2020-02-10T23:46:15.217Z) Over a year ago          just make sure the site you are connecting to is legit. I use youtube-dl with ffmeg to download some videos from other sites, which I know are legit, so I use this switch oftem. 2020-02-10T23:46:15.217Z+00:00    0      Reply               (https://stackoverflow.com/users/3336412/matthias-burger)   Matthias Burger (https://stackoverflow.com/users/3336412/matthias-burger) Matthias Burger (2022-03-26T10:24:55.19Z) Over a year ago          to which command? this is a python script where someone does import ...  2022-03-26T10:24:55.19Z+00:00    1      Reply                Add a comment | Show 4 more comments          The Overflow Blog      (https://stackoverflow.blog/2025/10/24/your-runbooks-are-obsolete-in-the-age-of-agents/?cb=1) Your runbooks are obsolete in the age of agents   Featured on Meta  (Meta Stack Exchange)   (https://meta.stackexchange.com/questions/412992/a-first-look-stack-overflow-redesign?cb=1) A First Look: Stack Overflow Redesign   (Meta Stack Exchange)   (https://meta.stackexchange.com/questions/413210/community-asks-sprint-announcement-october-november-2025?cb=1) Community Asks Sprint Announcement - October/November 2025   (Meta Stack Overflow)   (https://meta.stackoverflow.com/questions/435293/upcoming-opinion-based-questions-alpha-experiment-on-stack-overflow?cb=1) Upcoming opinion-based questions alpha experiment on Stack Overflow            Community activity Last 1 hr  Users online activity  6636 users online   Number of questions asked  12 questions   Number of questions that received an answer  8 answers   Number of comments posted  27 comments   Number of upvotes on posts  117 upvotes     Popular tags  Popular tags  (https://stackoverflow.com/questions/tagged/java) java (https://stackoverflow.com/questions/tagged/php) php (https://stackoverflow.com/questions/tagged/c#) c# (https://stackoverflow.com/questions/tagged/c++) c++ (https://stackoverflow.com/questions/tagged/python) python (https://stackoverflow.com/questions/tagged/java.util.scanner) java.util.scanner     Popular unanswered question  Popular unanswered question  (https://stackoverflow.com/questions/79801428) In my Blazor SSR app., my service method is failing when calling an Azure HTTP trigger  (https://stackoverflow.com/questions/tagged/c#) c# (https://stackoverflow.com/questions/tagged/azure) azure (https://stackoverflow.com/questions/tagged/http) http (https://stackoverflow.com/questions/tagged/triggers) triggers (https://stackoverflow.com/questions/tagged/blazor) blazor  (https://stackoverflow.com/users/5635923) (User avatar)  (https://stackoverflow.com/users/5635923) John H 11   (Monday, October 27, 2025 at 3:16:40 AM UTC) 29 minutes ago         Linked (https://stackoverflow.com/questions/51785882/youtube-dl-gave-me-an-error-about-ssl?lq=1) (Question score (upvotes - downvotes)) 3  (https://stackoverflow.com/questions/51785882/youtube-dl-gave-me-an-error-about-ssl?noredirect=1&lq=1) youtube-dl gave me an error about ssl    Related (https://stackoverflow.com/questions/51925384/unable-to-get-local-issuer-certificate-when-using-requests?rq=1) (Question score (upvotes - downvotes)) 140  (https://stackoverflow.com/questions/51925384/unable-to-get-local-issuer-certificate-when-using-requests?rq=1) Unable to get local issuer certificate when using requests  (https://stackoverflow.com/questions/61990284/pip-install-fails-with-connection-error-ssl-problem?rq=1) (Question score (upvotes - downvotes)) 6  (https://stackoverflow.com/questions/61990284/pip-install-fails-with-connection-error-ssl-problem?rq=1) Pip install fails with “connection error" ssl problem  (https://stackoverflow.com/questions/60973425/youtube-dl-is-updated-to-latest-version-when-i-am-running-this-code-this-long-we?rq=1) (Question score (upvotes - downvotes)) 1  (https://stackoverflow.com/questions/60973425/youtube-dl-is-updated-to-latest-version-when-i-am-running-this-code-this-long-we?rq=1) YouTube-dl is updated to latest version.when I am running this code this long weird error is occurex  (https://stackoverflow.com/questions/51785882/youtube-dl-gave-me-an-error-about-ssl?rq=1) (Question score (upvotes - downvotes)) 3  (https://stackoverflow.com/questions/51785882/youtube-dl-gave-me-an-error-about-ssl?rq=1) youtube-dl gave me an error about ssl  (https://stackoverflow.com/questions/71170255/max-retries-exceeded-with-url-error-while-running-the-code?rq=1) (Question score (upvotes - downvotes)) 6  (https://stackoverflow.com/questions/71170255/max-retries-exceeded-with-url-error-while-running-the-code?rq=1) Max retries exceeded with url error while running the code?  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