jupyter-book: PDF build: SSL errors, 'certificate verify failed'

Hi. I’m just working through the documentation. Followed all the installation instructions. Trying to build the example mini_book as a PDF on Ubuntu:

(qe-mini-example) ~/quantecon-mini-example$ jupyter-book build ./mini_book --builder pdfhtml
Running Sphinx v2.4.4
loading pickled environment... done
building [mo]: targets for 0 po files that are out of date
building [singlehtml]: all documents
updating environment: 0 added, 0 changed, 0 removed
looking for now-outdated files... none found
preparing documents... done
assembling single document... docs/about_py docs/getting_started docs/python_by_example docs/learn_more done
writing... done
writing additional files... done
copying images... [100%] _static/lecture_specific/about_py/career_vf.png                                                                      
copying static files... ... done
copying extra files... done
dumping object inventory... done
build succeeded.

The HTML page is in mini_book/_build/html.
Finished generating HTML for book...
Converting book HTML into PDF...
[W:pyppeteer.chromium_downloader] start chromium download.
Download may take a few minutes.
Traceback (most recent call last):
  File "/home/shawley/anaconda3/envs/qe-mini-example/lib/python3.7/site-packages/urllib3/contrib/pyopenssl.py", line 488, in wrap_socket
    cnx.do_handshake()
  File "/home/shawley/anaconda3/envs/qe-mini-example/lib/python3.7/site-packages/OpenSSL/SSL.py", line 1934, in do_handshake
    self._raise_ssl_error(self._ssl, result)
  File "/home/shawley/anaconda3/envs/qe-mini-example/lib/python3.7/site-packages/OpenSSL/SSL.py", line 1671, in _raise_ssl_error
    _raise_current_error()
  File "/home/shawley/anaconda3/envs/qe-mini-example/lib/python3.7/site-packages/OpenSSL/_util.py", line 54, in exception_from_error_queue
    raise exception_type(errors)
OpenSSL.SSL.Error: [('SSL routines', 'tls_process_server_certificate', 'certificate verify failed')]

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/shawley/anaconda3/envs/qe-mini-example/lib/python3.7/site-packages/urllib3/connectionpool.py", line 677, in urlopen
    chunked=chunked,
  File "/home/shawley/anaconda3/envs/qe-mini-example/lib/python3.7/site-packages/urllib3/connectionpool.py", line 381, in _make_request
    self._validate_conn(conn)
  File "/home/shawley/anaconda3/envs/qe-mini-example/lib/python3.7/site-packages/urllib3/connectionpool.py", line 976, in _validate_conn
    conn.connect()
  File "/home/shawley/anaconda3/envs/qe-mini-example/lib/python3.7/site-packages/urllib3/connection.py", line 370, in connect
    ssl_context=context,
  File "/home/shawley/anaconda3/envs/qe-mini-example/lib/python3.7/site-packages/urllib3/util/ssl_.py", line 377, in ssl_wrap_socket
    return context.wrap_socket(sock, server_hostname=server_hostname)
  File "/home/shawley/anaconda3/envs/qe-mini-example/lib/python3.7/site-packages/urllib3/contrib/pyopenssl.py", line 494, in wrap_socket
    raise ssl.SSLError("bad handshake: %r" % e)
ssl.SSLError: ("bad handshake: Error([('SSL routines', 'tls_process_server_certificate', 'certificate verify failed')])",)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/shawley/anaconda3/envs/qe-mini-example/bin/jupyter-book", line 8, in <module>
    sys.exit(main())
  File "/home/shawley/anaconda3/envs/qe-mini-example/lib/python3.7/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/home/shawley/anaconda3/envs/qe-mini-example/lib/python3.7/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/home/shawley/anaconda3/envs/qe-mini-example/lib/python3.7/site-packages/click/core.py", line 1259, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/home/shawley/anaconda3/envs/qe-mini-example/lib/python3.7/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/home/shawley/anaconda3/envs/qe-mini-example/lib/python3.7/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/home/shawley/anaconda3/envs/qe-mini-example/lib/python3.7/site-packages/jupyter_book/commands/__init__.py", line 163, in build
    html_to_pdf(OUTPUT_PATH.joinpath("index.html"), path_pdf_output)
  File "/home/shawley/anaconda3/envs/qe-mini-example/lib/python3.7/site-packages/jupyter_book/pdf.py", line 19, in html_to_pdf
    asyncio.get_event_loop().run_until_complete(_html_to_pdf(html_file, pdf_file))
  File "/home/shawley/anaconda3/envs/qe-mini-example/lib/python3.7/asyncio/base_events.py", line 583, in run_until_complete
    return future.result()
  File "/home/shawley/anaconda3/envs/qe-mini-example/lib/python3.7/site-packages/jupyter_book/pdf.py", line 31, in _html_to_pdf
    browser = await launch(args=["--no-sandbox"])
  File "/home/shawley/anaconda3/envs/qe-mini-example/lib/python3.7/site-packages/pyppeteer/launcher.py", line 305, in launch
    return await Launcher(options, **kwargs).launch()
  File "/home/shawley/anaconda3/envs/qe-mini-example/lib/python3.7/site-packages/pyppeteer/launcher.py", line 119, in __init__
    download_chromium()
  File "/home/shawley/anaconda3/envs/qe-mini-example/lib/python3.7/site-packages/pyppeteer/chromium_downloader.py", line 146, in download_chromium
    extract_zip(download_zip(get_url()), DOWNLOADS_FOLDER / REVISION)
  File "/home/shawley/anaconda3/envs/qe-mini-example/lib/python3.7/site-packages/pyppeteer/chromium_downloader.py", line 85, in download_zip
    data = http.request('GET', url, preload_content=False)
  File "/home/shawley/anaconda3/envs/qe-mini-example/lib/python3.7/site-packages/urllib3/request.py", line 76, in request
    method, url, fields=fields, headers=headers, **urlopen_kw
  File "/home/shawley/anaconda3/envs/qe-mini-example/lib/python3.7/site-packages/urllib3/request.py", line 97, in request_encode_url
    return self.urlopen(method, url, **extra_kw)
  File "/home/shawley/anaconda3/envs/qe-mini-example/lib/python3.7/site-packages/urllib3/poolmanager.py", line 336, in urlopen
    response = conn.urlopen(method, u.request_uri, **kw)
  File "/home/shawley/anaconda3/envs/qe-mini-example/lib/python3.7/site-packages/urllib3/connectionpool.py", line 765, in urlopen
    **response_kw
  File "/home/shawley/anaconda3/envs/qe-mini-example/lib/python3.7/site-packages/urllib3/connectionpool.py", line 765, in urlopen
    **response_kw
  File "/home/shawley/anaconda3/envs/qe-mini-example/lib/python3.7/site-packages/urllib3/connectionpool.py", line 765, in urlopen
    **response_kw
  File "/home/shawley/anaconda3/envs/qe-mini-example/lib/python3.7/site-packages/urllib3/connectionpool.py", line 725, in urlopen
    method, url, error=e, _pool=self, _stacktrace=sys.exc_info()[2]
  File "/home/shawley/anaconda3/envs/qe-mini-example/lib/python3.7/site-packages/urllib3/util/retry.py", line 439, in increment
    raise MaxRetryError(_pool, url, error or ResponseError(cause))
urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='storage.googleapis.com', port=443): Max retries exceeded with url: /chromium-browser-snapshots/Linux_x64/588429/chrome-linux.zip (Caused by SSLError(SSLError("bad handshake: Error([('SSL routines', 'tls_process_server_certificate', 'certificate verify failed')])")))

About this issue

  • Original URL
  • State: open
  • Created 4 years ago
  • Reactions: 2
  • Comments: 17 (6 by maintainers)

Most upvoted comments

@dafriedman97 Maybe try this:

https://github.com/palmoreck/dockerfiles-for-binder/tree/jupyterlab_optimizacion#changes-for-palmoreckjupyterlab_optimizacion_binder_test_for_pdf214

I solved sth related to that one manually changing pyppeteer/page.py where is 30000 #milliseconds to self._defaultNavigationTimeout = 30000000000 # milliseconds

+6
palmoreck on Sep 2, 2020

@dafriedman97 Maybe try this:

https://github.com/palmoreck/dockerfiles-for-binder/tree/jupyterlab_optimizacion#changes-for-palmoreckjupyterlab_optimizacion_binder_test_for_pdf214

I solved sth related to that one manually changing pyppeteer/page.py where is 30000 #milliseconds to self._defaultNavigationTimeout = 30000000000 # milliseconds

My book is very long in PDF form and this increasing the timeout did the trick. Anyone wanting to do this in an automated build could do the following before building the PDF

sed -i "s/self._defaultNavigationTimeout = 30000/\
self._defaultNavigationTimeout = 30000000000/" $(python -c \
"import pip; print(pip.__path__[0].rstrip('/pip'))")/pyppeteer/page.py
+4
paddyroddy on Dec 3, 2020

@drscotthawley thank you for your messages. I built a docker image with some instructions I found here and in other sites:

https://github.com/palmoreck/dockerfiles-for-binder/tree/jupyterlab_optimizacion

And here’s an example of a book that I’ve been writing with this amazing project of executablebooks/jupyter-book 😃

https://github.com/ITAM-DS/analisis-numerico-computo-cientifico#para-convertir-notas-a-pdf

Instructions are in spanish … but basically I’m using binder to build the book because I just have the first chapter and it’s size is approx 6.5 MB (the book will have 4 chapters approx). After clicking the binder Binder button I execute in a terminal:

bash
cd analisis-numerico-computo-cientifico/libro_optimizacion/temas/
jb build . --builder pdfhtml

After some time in directory: analisis-numerico-computo-cientifico/libro_optimizacion/temas/_build/pdf will be the pdf.

Hope this will be useful to someone.

Cheers 👋

+1
palmoreck on Aug 11, 2020

I have experienced this same error, with jupyter-book 0.7.0b2, under windows subsystem for linux. Since the problem seems to be related to the installation of chrome, I tried running the command pyppeteer-install, which seemed to run fine.

Now I no longer see the certificate error. Instead I see the output now freezes at Converting book HTML into PDF..., apparently indefinitely.

+1
DavidPowell on Jun 1, 2020

I just now inserted it near the top of anaconda3/envs/qe-mini-example/lib/python3.7/site-packages/jupyter_book/commands/__init__.py, re-ran the build, and everything worked!

(probably not where you want to put it, but I’m brand-new to this project.)

+1
drscotthawley on May 16, 2020
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