CID 1128792: Dereference null return value (NULL_RETURNS)

CID 1128793: Missing varargs init or cleanup (VARARGS)

PyLong_FromLong() failure

error handling

The following code didn't handle correctly the failure of
PyUnicode_InternFromString("__name__").

if (newobj_str == NULL) {
    newobj_str = PyUnicode_InternFromString("__newobj__");
    name_str = PyUnicode_InternFromString("__name__");
    if (newobj_str == NULL || name_str == NULL)
        return -1;
}

the exception when PyList_Append() fails

- output type errors now redirect users to the type-neutral
  convenience functions in the codecs module
- stateless errors that occur during encoding and decoding
  will now be automatically wrapped in exceptions that give
  the name of the codec involved

Replace it with PyUnicode_GET_LENGTH() or PyUnicode_AsUnicodeAndSize()

failures

failure

PyUnicode_Substring() failure (ex: MemoryError)

test.support: considering the module is a mix of utilities unrelated with each other divide __all__ in sub-sections so that it can be used as a quick-reference doc

Patch written by Andrei Dorian Duma.

shutdown to call objects destructors. So "unclosed file" resource warnings are
now corretly emitted for daemon threads.

The SMTP server advertises four different authentication methods, and
the code will try CRAM-MD5 first, which will fail, but LOGIN succeeds.