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sslpippycryptosage

In Sage: No module named 'Crypto' --> ssl errors with pip

I see from this answer that the solution is to run:

sage --pip install pycrypto

Yet, when I try this, I get the following error:

WARNING: pip is configured with locations that require TLS/SSL, however the ssl module in Python is not available.
WARNING: 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/pycrypto/
WARNING: 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/pycrypto/
WARNING: 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/pycrypto/
WARNING: 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/pycrypto/
WARNING: 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/pycrypto/
Could not fetch URL https://pypi.org/simple/pycrypto/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host='pypi.org', port=443): Max retries exceeded with url: /simple/pycrypto/ (Caused by SSLError("Can't connect to HTTPS URL because the SSL module is not available.")) - skipping
ERROR: Could not find a version that satisfies the requirement pycrypto (from versions: none)
ERROR: No matching distribution found for pycrypto
WARNING: 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
Solution

  • Since you have Sage 9.2, I would suggest upgrading.

    The best way to do so depends on

    • whether you intend to develop Sage or only use it
    • what extra packages you need to install with Sage

    If you

    • only intend to use Sage
    • only need pip-installable packages

    then consider installing the latest Sage-macOS from

    Then launch Sage and, at the Sage prompt, run

    %pip install pycrypto

    and similarly for any pip-installable packages you need.

    Then quit Sage and launch it again.