On Wed, Aug 26, 2020 at 5:10 PM David Coudert <david.coud...@gmail.com> wrote:
>
> Hello,
>
> I'm posting this here as it may help improving the documentation of sage math
> and the install guide of Cplex.
>
> A colleague (with very little system knowledge) just installed sagemath on
> his new macOS laptop using the precompiled binary
> sage-9.1-OSX_10.15.4-x86_64.app.dmg.
> He also installed Cplex Studio 12.10.
> Then he followed the install guide of Cplex from
> https://github.com/mkoeppe/sage-numerical-backends-cplex and got the
> following error.
> I don't know how to solve this issue.
>
> Any help is more than welcome :))
>
> Best,
> David.
>
> =====
> aioli:~ nnisse$ sage -python -m pip install sage-numerical-backends-cplex
> pip is configured with locations that require TLS/SSL, however the ssl module
> in Python is not available.
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
this is the 1st problem to fix, by doing
"sage -i openssl pyopenssl"
and crossing your fingers...
> Collecting sage-numerical-backends-cplex
> Retrying (Retry(total=4, connect=None, read=None, redirect=None,
> status=None)) after connection broken by 'SSLError("Can't connect to HTTPS
> URL because the SSL module is not available.")':
> /simple/sage-numerical-backends-cplex/
> Retrying (Retry(total=3, connect=None, read=None, redirect=None,
> status=None)) after connection broken by 'SSLError("Can't connect to HTTPS
> URL because the SSL module is not available.")':
> /simple/sage-numerical-backends-cplex/
> Retrying (Retry(total=2, connect=None, read=None, redirect=None,
> status=None)) after connection broken by 'SSLError("Can't connect to HTTPS
> URL because the SSL module is not available.")':
> /simple/sage-numerical-backends-cplex/
> Retrying (Retry(total=1, connect=None, read=None, redirect=None,
> status=None)) after connection broken by 'SSLError("Can't connect to HTTPS
> URL because the SSL module is not available.")':
> /simple/sage-numerical-backends-cplex/
> Retrying (Retry(total=0, connect=None, read=None, redirect=None,
> status=None)) after connection broken by 'SSLError("Can't connect to HTTPS
> URL because the SSL module is not available.")':
> /simple/sage-numerical-backends-cplex/
> Could not fetch URL https://pypi.org/simple/sage-numerical-backends-cplex/:
> There was a problem confirming the ssl certificate:
> HTTPSConnectionPool(host='pypi.org', port=443): Max retries exceeded with
> url: /simple/sage-numerical-backends-cplex/ (Caused by SSLError("Can't
> connect to HTTPS URL because the SSL module is not available.")) - skipping
> Could not find a version that satisfies the requirement
> sage-numerical-backends-cplex (from versions: )
> No matching distribution found for sage-numerical-backends-cplex
> pip is configured with locations that require TLS/SSL, however the ssl module
> in Python is not available.
> Could not fetch URL https://pypi.org/simple/pip/: There was a problem
> confirming the ssl certificate: HTTPSConnectionPool(host='pypi.org',
> port=443): Max retries exceeded with url: /simple/pip/ (Caused by
> SSLError("Can't connect to HTTPS URL because the SSL module is not
> available.")) - skipping
> =====
>
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