"sage -i sage_numerical_backends_cplex" is working well. Thank you.
May be we should say that in the documentation of https://github.com/mkoeppe/sage-numerical-backends-cplex. Best, David. Le jeudi 27 août 2020 à 00:25:28 UTC+2, Matthias Koeppe a écrit : > This package is also prepared as an optional sage package. > "sage -i sage_numerical_backends_cplex" suffices. See > https://doc.sagemath.org/html/en/thematic_tutorials/linear_programming.html#solvers-backends > > > On Wednesday, August 26, 2020 at 9:10:33 AM UTC-7, David Coudert 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. >> 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 >> ===== >> > -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/sage-devel/8a11c78a-69fa-438b-b11a-fe3b69e4894fn%40googlegroups.com.
