bpo-13631: Fix the order of initialization for readline libedit on macOS. (GH-6915)
The editline emulation needs to be initialized *after* the name is defined. This fixes the long open issue.
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@ -17,11 +17,18 @@ made using this module affect the behaviour of both the interpreter's
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interactive prompt and the prompts offered by the built-in :func:`input`
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function.
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Readline keybindings may be configured via an initialization file, typically
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``.inputrc`` in your home directory. See `Readline Init File
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<https://cnswww.cns.cwru.edu/php/chet/readline/rluserman.html#SEC9>`_
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in the GNU Readline manual for information about the format and
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allowable constructs of that file, and the capabilities of the
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Readline library in general.
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.. note::
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The underlying Readline library API may be implemented by
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the ``libedit`` library instead of GNU readline.
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On MacOS X the :mod:`readline` module detects which library is being used
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On macOS the :mod:`readline` module detects which library is being used
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at run time.
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The configuration file for ``libedit`` is different from that
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@ -29,12 +36,13 @@ function.
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you can check for the text "libedit" in :const:`readline.__doc__`
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to differentiate between GNU readline and libedit.
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Readline keybindings may be configured via an initialization file, typically
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``.inputrc`` in your home directory. See `Readline Init File
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<https://cnswww.cns.cwru.edu/php/chet/readline/rluserman.html#SEC9>`_
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in the GNU Readline manual for information about the format and
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allowable constructs of that file, and the capabilities of the
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Readline library in general.
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If you use *editline*/``libedit`` readline emulation on macOS, the
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initialization file located in your home directory is named
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``.editrc``. For example, the following content in ``~/.editrc`` will
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turn ON *vi* keybindings and TAB completion::
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python:bind -v
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python:bind ^I rl_complete
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Init file
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@ -187,6 +187,8 @@ library/profile,,:lineno,filename:lineno(function)
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library/pyexpat,,:elem1,<py:elem1 />
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library/pyexpat,,:py,"xmlns:py = ""http://www.python.org/ns/"">"
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library/random,,:len,new_diff = mean(combined[:len(drug)]) - mean(combined[len(drug):])
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library/readline,,:bind,"python:bind -v"
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library/readline,,:bind,"python:bind ^I rl_complete"
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library/smtplib,,:port,method must support that as well as a regular host:port
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library/socket,,::,'5aef:2b::8'
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library/socket,,:can,"return (can_id, can_dlc, data[:can_dlc])"
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@ -1229,6 +1229,7 @@ Gabriel de Perthuis
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Tim Peters
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Benjamin Peterson
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Joe Peterson
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Zvezdan Petkovic
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Ulrich Petri
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Chris Petrilli
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Roumen Petrov
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@ -0,0 +1,2 @@
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The .editrc file in user's home directory is now processed correctly during
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the readline initialization through editline emulation on macOS.
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@ -1078,6 +1078,9 @@ setup_readline(readlinestate *mod_state)
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Py_FatalError("not enough memory to save locale");
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#endif
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/* The name must be defined before initialization */
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rl_readline_name = "python";
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#ifdef __APPLE__
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/* the libedit readline emulation resets key bindings etc
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* when calling rl_initialize. So call it upfront
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@ -1099,7 +1102,6 @@ setup_readline(readlinestate *mod_state)
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using_history();
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rl_readline_name = "python";
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/* Force rebind of TAB to insert-tab */
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rl_bind_key('\t', rl_insert);
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/* Bind both ESC-TAB and ESC-ESC to the completion function */
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