The deprecation include manual creation of SSLSocket and certfile/keyfile
(or similar) in ftplib, httplib, imaplib, smtplib, poplib and urllib.

ssl.wrap_socket() is not marked as deprecated yet.

The options OP_NO_COMPRESSION, OP_CIPHER_SERVER_PREFERENCE, OP_SINGLE_DH_USE, OP_SINGLE_ECDH_USE, OP_NO_SSLv2 (except for PROTOCOL_SSLv2), and OP_NO_SSLv3 (except for PROTOCOL_SSLv3) are set by default. The initial cipher suite list contains only HIGH ciphers, no NULL ciphers and MD5 ciphers (except for PROTOCOL_SSLv2).

Issue #25221: Fix corrupted result from PyLong_FromLong(0) when Python is compiled with NSMALLPOSINTS = 0.

appropriate types. Improved some error messages and debugging output.

This change didn't have the intended effect.

json.loads (and hence json.load) now support binary input
encoded as UTF-8, UTF-16 or UTF-32.

Patch by Serhiy Storchaka.

The pure Python fallback implementation of functools.partial
now matches the behaviour of its accelerated C counterpart for
subclassing, pickling and text representation purposes.

Patch by Emanuel Barry and Serhiy Storchaka.

Issue #27829: don't pass --quiet option to regrtest to see
"Warning -- xxx was modified by ..." warnings.

between 1.0 and 2.0 to 1.

between 1.0 and 2.0 to 1.

* Use "with Popen" to cleanup properly the process
* Use support.temp_cwd() to properly change the working directory
* Use environ.pop() to cleanup the code