This changes the main documentation, doc strings, source code comments, and a
couple error messages in the test suite. In some cases the word was removed
or edited some other way to fix the grammar.

robust at shutdown. If needs to release multiple resources, they are released
even if errors are occured.

Patch by Donald Stufft.

Patch by Matt Chaput.

indication for TLS/SSL connections.

create SSLContext objects in Python's stdlib module. It provides a single
configuration point and makes use of SSLContext.load_default_certs().

limiting the call to readline().  Original patch by Michał
Jastrzębski and Giampaolo Rodola.

limiting the call to readline().  Original patch by Michał
Jastrzębski and Giampaolo Rodola.

ModuleNotFoundError.

as reported by Serhiy Storchaka and Matthew Barnett.

as reported by Serhiy Storchaka and Matthew Barnett.

Refactor ftplib by getting rid of 4 methods (retr*() and stor*()) which were duplicated in TLS_FTP class.

Fix issue #16646: ftplib.FTP.makeport() might lose socket error details.  (patch by Serhiy Storchaka)

Fix issue #16646: ftplib.FTP.makeport() might lose socket error details.  (patch by Serhiy Storchaka)

* ftpwrapper now uses reference counting to ensure that the underlying socket
  is closed when the ftpwrapper object is no longer in use
* ftplib.FTP.ntransfercmd() now closes the socket if an error occurs

Initial patch by Victor Stinner.

Issue 12139: add CCC command support to FTP_TLS class to revert the SSL connection back to clear-text.

* ftpwrapper now uses reference counting to ensure that the underlying socket
  is closed when the ftpwrapper object is no longer in use
* ftplib.FTP.ntransfercmd() now closes the socket if an error occurs

Initial patch by Victor Stinner.

Fix closes issue1067702  The problem with close multiple ftp transfers were due cases where sockets/file were not closed immediately. Tightned those cases and failure is no longer observed.

'latin-1' and 'utf-8'.

These are optimized in the Python Unicode implementation
to result in more direct processing, bypassing the codec
registry.

Also see issue11303.