curl -k "https://192.168.2.1/api/login?username=admin&password=admin"

buffer = BytesIO()
c = pycurl.Curl()
c.setopt(c.URL, 'https://192.168.2.1/api/login?username=admin&password=admin')
c.setopt(c.WRITEDATA, buffer)
c.perform()
c.close()

body = buffer.getvalue()
# Body is a byte string.
# We have to know the encoding in order to print it to a text file
# such as standard output.
print(body.decode("iso-8859-1"))

pycurl.error, (60, 'server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none')

urllib.error.URLError, <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:600)>

import urllib2
f = urllib2.urlopen("https://ya.ru")
print f.read()

import urllib.request
f = urllib.request.urlopen('https://192.168.2.1/api/login?username=admin&password=admin')
print (f.read())

import pycurl

c = pycurl.Curl()
c.setopt(c.URL, 'https://ya.ru')
c.perform()

$ openssl s_client -prexit -servername $host -connect $host:443 </dev/null | openssl x509 >server.crt

$ curl --cacert server.crt https://$host/path?query

import pycurl

c = pycurl.Curl()
c.setopt(c.URL, url)
c.setopt(c.CAINFO, 'server.crt')
c.perform()

import requests

r = requests.get(url, verify='server.crt')
print(r.text)

import ssl
import urllib.request

context = ssl.create_default_context(cafile='server.crt')
with urllib.request.urlopen(url, context=context) as r:
    print(r.read().decode(r.headers.get_content_charset('utf-8')))

c.setopt(c.SSL_VERIFYPEER, 0)  # default 1
c.setopt(c.SSL_VERIFYHOST, 0)  # default 2