[issue23857] Make default HTTPS certificate verification setting configurable

[Robert Kuska]

Robert Kuska added the comment:

If test fail it will print out non-telling message which make debugging a little bit hard:

 FAIL: test__https_verify_envvar (test.test_ssl.ContextTests)                                        
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 Traceback (most recent call last):                                                                  
   File "/builddir/build/BUILD/Python-2.7.5/Lib/test/test_ssl.py", line 1143, in test__https_verify_envvar
     assert_python_ok("-c", https_is_verified, **extra_env)                                          
   File "/builddir/build/BUILD/Python-2.7.5/Lib/test/script_helper.py", line 55, in assert_python_ok
     return _assert_python(True, *args, **env_vars)                                                  
   File "/builddir/build/BUILD/Python-2.7.5/Lib/test/script_helper.py", line 47, in _assert_python  
     "stderr follows:\n%s" % (rc, err.decode('ascii', 'ignore')))                                    
 AssertionError: Process return code is 1, stderr follows:

Would be possible to change following code which is being executed:

+        https_is_verified = """import ssl, sys;\
+            sys.exit(ssl._create_default_https_context is not
+                     ssl.create_default_context)"""

into something like

https_is_verified = """import ssl, sys;\
value = ssl._create_default_https_context is not ssl.create_default_context;\
sys.exit('ssl._create_default_https_context should be set to verified' if value else value)"""

So traceback will look like this:
...
    "stderr follows:\n%s" % (rc, err.decode('ascii', 'ignore')))
AssertionError: Process return code is 1, stderr follows:
ssl._create_default_https_context should be set to verified

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue23857>
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