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I am on Kubuntu 18.10 with python 2.7.15 and 3.6.7 installed and output of lsb_release -a is

LSB Version:    core-9.20170808ubuntu1-noarch:security-9.20170808ubuntu1-noarch

Distributor ID: Ubuntu

Description:    Ubuntu 18.10

Release:        18.10

Codename:       cosmic

pip works on my machine since its for python 2.7 and output of pip -V is

pip 9.0.1 from /usr/lib/python2.7/dist-packages (python 2.7)

But typing pip3 gives segfault. The output is just Segmentation fault. Same output for pipenv. I have tried removing and installing python3-pip several times, deleted pip cache in /home/<username>/.cache. When i try to add any PPA using apt-add, i get this output

  File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 380, in get_ppa_info

    ret = get_ppa_info_from_lp(user, ppa)

  File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 110, in get_ppa_info_from_lp

    return get_info_from_lp(lp_url)

  File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 104, in get_info_from_lp

    return get_info_from_https(lp_url, True)

  File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 96, in get_info_from_https

    data = func(lp_url=url, accept_json=accept_json, retry_delays=retry_delays)

  File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 139, in _get_https_content_py3

    cafile=LAUNCHPAD_PPA_CERT)

  File "/usr/lib/python3.6/urllib/request.py", line 210, in urlopen

    raise ValueError('SSL support not available')

ValueError: SSL support not available



During handling of the above exception, another exception occurred:



Traceback (most recent call last):

  File "/usr/bin/add-apt-repository", line 136, in <module>

    shortcut = shortcut_handler(line)

  File "/usr/lib/python3/dist-packages/softwareproperties/SoftwareProperties.py", line 1020, in shortcut_handler

    ret = factory(shortcut)

  File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 469, in shortcut_handler

    return PPAShortcutHandler(shortcut)

  File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 426, in __init__

    info = get_ppa_info(self.shortcut)

  File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 392, in get_ppa_info

    _get_suggested_ppa_message(user, ppa))

  File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 349, in _get_suggested_ppa_message

    lp_user = get_info_from_lp(LAUNCHPAD_USER_API % user)

  File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 104, in get_info_from_lp

    return get_info_from_https(lp_url, True)

  File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 96, in get_info_from_https

    data = func(lp_url=url, accept_json=accept_json, retry_delays=retry_delays)

  File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 139, in _get_https_content_py3

    cafile=LAUNCHPAD_PPA_CERT)

  File "/usr/lib/python3.6/urllib/request.py", line 210, in urlopen

    raise ValueError('SSL support not available')

ValueError: SSL support not available

Another symptom why i think there is an issue with ssl is that when i import ssl in python2 terminal, it works. But importing ssl in python 3.6 gives segfault

Python 3.6.7 (default, Oct 22 2018, 11:32:17) 

[GCC 8.2.0] on linux

Type "help", "copyright", "credits" or "license" for more information.

>>> import ssl

Segmentation fault (core dumped)

UPDATE

When i import any other module before ssl, say hashlib, i get a different error

Python 3.6.7 (default, Oct 22 2018, 11:32:17) 

[GCC 8.2.0] on linux

Type "help", "copyright", "credits" or "license" for more information.

>>> import hashlib

>>> import ssl

Traceback (most recent call last):

  File "<stdin>", line 1, in <module>

  File "/usr/lib/python3.6/ssl.py", line 101, in <module>

    import _ssl             # if we can't import it, let the error propagate

ImportError: /usr/local/lib/libssl.so.1.1: version `OPENSSL_1_1_1' not found (required by /usr/lib/python3.6/lib-dynload/_ssl.cpython-36m-x86_64-linux-gnu.so)

Removing existing openssl from /usr/bin/openssl and /usr/local/bin/openssl and reinstalling openssl using this answer fixed the issue. Before that i also tried the following as @ByteCommander suggested

sudo apt install --reinstall openssl

sudo apt install --reinstall code 

sudo apt install --reinstall python3-update-manager