SSL CERTIFICATE VERIFY FAILED with Python3

Question

I apologize if this is a silly question  but I have been trying to teach myself how to use BeautifulSoup so that I can create a few projects   I was following this link as a tutorial  https   www youtube com watch v 5GzVNi0oTxQ  After following the exact same code as him  this is the error that I get    Traceback  most recent call last     File   Library Frameworks Python framework Versions 3 5 lib python3 5 urllib request py   line 1240  in do open     h request req get method    req selector  req data  headers    File   Library Frameworks Python framework Versions 3 5 lib python3 5 http client py   line 1083  in request     self  send request method  url  body  headers    File   Library Frameworks Python framework Versions 3 5 lib python3 5 http client py   line 1128  in  send request     self endheaders body    File   Library Frameworks Python framework Versions 3 5 lib python3 5 http client py   line 1079  in endheaders self  send output message body    File   Library Frameworks Python framework Versions 3 5 lib python3 5 http client py   line 911  in  send output     self send msg    File   Library Frameworks Python framework Versions 3 5 lib python3 5 http client py   line 854  in send     self connect     File   Library Frameworks Python framework Versions 3 5 lib python3 5 http client py   line 1237  in connect server hostname server hostname    File   Library Frameworks Python framework Versions 3 5 lib python3 5 ssl py   line 376  in wrap socket  context self    File   Library Frameworks Python framework Versions 3 5 lib python3 5 ssl py   line 747  in   init   self do handshake     File   Library Frameworks Python framework Versions 3 5 lib python3 5 ssl py   line 983  in do handshake     self  sslobj do handshake     File   Library Frameworks Python framework Versions 3 5 lib python3 5 ssl py   line 628  in do handshake     self  sslobj do handshake   ssl SSLError   SSL  CERTIFICATE VERIFY FAILED  certificate verify failed   ssl c 645    During handling of the above exception  another exception occurred   Traceback  most recent call last     File  WorldCup py   line 3  in  lt module gt      x   urllib request urlopen  https   www google com     File   Library Frameworks Python framework Versions 3 5 lib python3 5 urllib request py   line 162  in urlopen     return opener open url  data  timeout    File   Library Frameworks Python framework Versions 3 5 lib python3 5 urllib request py   line 465  in open     response   self  open req  data    File   Library Frameworks Python framework Versions 3 5 lib python3 5 urllib request py   line 483  in  open   open   req    File   Library Frameworks Python framework Versions 3 5 lib python3 5 urllib request py   line 443  in  call chain     result   func  args    File   Library Frameworks Python framework Versions 3 5 lib python3 5 urllib request py   line 1283  in https open     context self  context  check hostname self  check hostname    File   Library Frameworks Python framework Versions 3 5 lib python3 5 urllib request py   line 1242  in do open raise URLError err  urllib error URLError   lt urlopen error  SSL  CERTIFICATE VERIFY FAILED      certificate verify failed   ssl c 645  gt    Can someone help me figure out how to fix this

User · Answer

Go to the folder where Python is installed, e.g., in my case (Mac OS) it is installed in the Applications folder with the folder name 'Python 3.6'. Now double click on 'Install Certificates.command'. You will no longer face this error.

For those not running a mac, or having a different setup and can't find this file, the file merely runs:

pip install --upgrade certifi

Hope that helps someone :)

User · Answer

On Debian 9 I had to     sudo update-ca-certificates --fresh   export SSL CERT DIR  etc ssl certs   I m not sure why  but this enviroment variable was never set

User · Answer

I had this problem in MacOS  and I solved it by linking the brew installed python 3 version  with   brew link python3   After that  it worked without a problem

User · Answer

In my case  I used the ssl module to  workaround  the certification like so   import ssl  ssl  create default https context   ssl  create unverified context   Then to read your link content  you can use   urllib request urlopen urllink

User · Answer

I have a lib what use https   requests readthedocs io en master  what use https   pypi org project certifi  but I have a custom CA included in my  etc ssl certs  So I solved my problem like this    Your TLS certificates directory  Debian like  export SSL CERT DIR  etc ssl certs   CA bundle PATH  Debian like again  export CA BUNDLE PATH  quot   SSL CERT DIR  ca-certificates crt quot    If you have a virtualenv       venv bin activate   Get the current certifi CA bundle CERTFI PATH  python -c  import certifi  print certifi where       test -L  CERTFI PATH    rm  CERTFI PATH test -L  CERTFI PATH    ln -s  CA BUNDLE PATH  CERTFI PATH  Et voil

User · Answer

When you are using a self signed cert urllib3 version 1 25 3 refuses to ignore the SSL cert  To fix remove urllib3-1 25 3 and install urllib3-1 24 3  pip3 uninstall urllib3  pip3 install urllib3  1 24 3  Tested on Linux MacOS and Window

[python] SSL: CERTIFICATE_VERIFY_FAILED with Python3

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