Python3でCtrl+Lで画面をクリアしたい

Question

前提・実現したいこと

Python3でCtrl+Lで画面をクリアしたい

発生している問題・エラーメッセージ

現状、Ctrl+L入力で、前の行をコピーするような動きになる。

>>> a = 3 # Ctrl+L 押下
>>> a = 3 # Ctrl+L 押下
>>> a = 3 # Ctrl+L 押下
>>> a = 3 # Ctrl+L 押下

試したこと

gnureadlineを入れてみました。
pip install gnureadline
入れて、Ctrl+方向キーが[[A[[B[[C[[Dになっていた問題が解決したが、
Ctrl+Lが思った動きをしてくれない。

補足情報（FW/ツールのバージョンなど）

os.system('clear')は動く

>>> import os
>>> os.system('clear') # 実行後、画面が更新され、先頭行が0になる
0
>>>

libreadline-devは入っていた。

apt show libreadline-dev
Package: libreadline-dev
Version: 6.3-8ubuntu2
Priority: optional
Section: libdevel
Source: readline6
Origin: Ubuntu

readlineのインストールに失敗する

(sqlalchemy-tutorial) cloud@dev-ubu ~/w/p/sqlalchemy-tutorial> pip install readline
Collecting readline
  Using cached https://files.pythonhosted.org/packages/f4/01/2cf081af8d880b44939a5f1b446551a7f8d59eae414277fd0c303757ff1b/readline-6.2.4.1.tar.gz
Installing collected packages: readline
  Running setup.py install for readline ... error
    Complete output from command /home/cloud/work/python3.6.0/sqlalchemy-tutorial/bin/python3.6.0 -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-a0t6v7b1/readline/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-9mlhc520-record/install-record.txt --single-version-externally-managed --compile --install-headers /home/cloud/work/python3.6.0/sqlalchemy-tutorial/include/site/python3.6/readline:

    ============ Building the readline library ============

    readline-6.2/
    readline-6.2/doc/
    readline-6.2/doc/Makefile.in
    readline-6.2/doc/texinfo.tex
    readline-6.2/doc/version.texi
    readline-6.2/doc/fdl.texi
    (略)
    patching file support/shobj-conf
    patching file patchlevel
    patching file input.c
    patching file patchlevel
    patching file vi_mode.c
    patching file patchlevel
    checking build system type... x86_64-unknown-linux-gnu
    checking host system type... x86_64-unknown-linux-gnu

    Beginning configuration for readline-6.2 for x86_64-unknown-linux-gnu

    checking whether make sets $(MAKE)... yes
    checking for gcc... gcc
    checking for C compiler default output file name... a.out
    checking whether the C compiler works... yes
    checking whether we are cross compiling... no
    checking for suffix of executables...
    checking for suffix of object files... o
    checking whether we are using the GNU C compiler... yes
    checking whether gcc accepts -g... yes
    checking for gcc option to accept ISO C89... none needed
    checking how to run the C preprocessor... gcc -E
    checking for grep that handles long lines and -e... /bin/grep
    checking for egrep... /bin/grep -E
    checking for ANSI C header files... yes
    (略)
    configure: creating ./config.status
    config.status: creating Makefile
    config.status: creating doc/Makefile
    config.status: creating examples/Makefile
    config.status: creating shlib/Makefile
    config.status: creating config.h
    config.status: executing default commands
    rm -f readline.o
    gcc -c -DHAVE_CONFIG_H   -DNEED_EXTERN_PC -fPIC -I. -I. -DRL_LIBRARY_VERSION='"6.2"' -g -O readline.c
    rm -f vi_mode.o
    gcc -c -DHAVE_CONFIG_H   -DNEED_EXTERN_PC -fPIC -I. -I. -DRL_LIBRARY_VERSION='"6.2"' -g -O vi_mode.c
    rm -f funmap.o
    gcc -c -DHAVE_CONFIG_H   -DNEED_EXTERN_PC -fPIC -I. -I. -DRL_LIBRARY_VERSION='"6.2"' -g -O funmap.c
    rm -f keymaps.o
    gcc -c -DHAVE_CONFIG_H   -DNEED_EXTERN_PC -fPIC -I. -I. -DRL_LIBRARY_VERSION='"6.2"' -g -O keymaps.c
    rm -f parens.o
    gcc -c -DHAVE_CONFIG_H   -DNEED_EXTERN_PC -fPIC -I. -I. -DRL_LIBRARY_VERSION='"6.2"' -g -O parens.c
    rm -f search.o
    gcc -c -DHAVE_CONFIG_H   -DNEED_EXTERN_PC -fPIC -I. -I. -DRL_LIBRARY_VERSION='"6.2"' -g -O search.c
    search.c: In function ‘_rl_nsearch_init’:
    search.c:213:15: warning: too many arguments for format [-Wformat-extra-args]
       rl_message ("%s", p, 0);
                   ^
    rm -f rltty.o
    gcc -c -DHAVE_CONFIG_H   -DNEED_EXTERN_PC -fPIC -I. -I. -DRL_LIBRARY_VERSION='"6.2"' -g -O rltty.c
    rm -f complete.o
    gcc -c -DHAVE_CONFIG_H   -DNEED_EXTERN_PC -fPIC -I. -I. -DRL_LIBRARY_VERSION='"6.2"' -g -O complete.c
    complete.c: In function ‘fnwidth’:
    complete.c:682:12: warning: implicit declaration of function ‘wcwidth’ [-Wimplicit-function-declaration]
            w = wcwidth (wc);
                ^
    rm -f bind.o
    gcc -c -DHAVE_CONFIG_H   -DNEED_EXTERN_PC -fPIC -I. -I. -DRL_LIBRARY_VERSION='"6.2"' -g -O bind.c
    rm -f isearch.o
    gcc -c -DHAVE_CONFIG_H   -DNEED_EXTERN_PC -fPIC -I. -I. -DRL_LIBRARY_VERSION='"6.2"' -g -O isearch.c
    rm -f display.o
    gcc -c -DHAVE_CONFIG_H   -DNEED_EXTERN_PC -fPIC -I. -I. -DRL_LIBRARY_VERSION='"6.2"' -g -O display.c
    display.c: In function ‘rl_redisplay’:
    display.c:764:15: warning: implicit declaration of function ‘wcwidth’ [-Wimplicit-function-declaration]
            temp = wcwidth (wc);
                   ^
    rm -f signals.o
    gcc -c -DHAVE_CONFIG_H   -DNEED_EXTERN_PC -fPIC -I. -I. -DRL_LIBRARY_VERSION='"6.2"' -g -O signals.c
    rm -f util.o
    gcc -c -DHAVE_CONFIG_H   -DNEED_EXTERN_PC -fPIC -I. -I. -DRL_LIBRARY_VERSION='"6.2"' -g -O util.c
    util.c: In function ‘_rl_tropen’:
    util.c:510:19: warning: format ‘%ld’ expects argument of type ‘long int’, but argument 3 has type ‘__pid_t {aka int}’ [-Wformat=]
       sprintf (fnbuf, "/var/tmp/rltrace.%ld", getpid());
                       ^
    (略)
    rm -f tilde.so
    gcc -c -DHAVE_CONFIG_H   -DNEED_EXTERN_PC -fPIC -I. -I.. -I.. -DRL_LIBRARY_VERSION='"6.2"' -g -O -fPIC -DREADLINE_LIBRARY -c -o tilde.o ../tilde.c
    mv tilde.o tilde.so
    rm -f compat.so
    gcc -c -DHAVE_CONFIG_H   -DNEED_EXTERN_PC -fPIC -I. -I.. -I.. -DRL_LIBRARY_VERSION='"6.2"' -g -O -fPIC -o compat.o ../compat.c
    mv compat.o compat.so
    rm -f libreadline.so.6.2
    gcc -shared -Wl,-soname,libreadline.so.6.2 -L./lib/termcap -Wl,-rpath,/usr/local/lib -Wl,-soname,`basename libreadline.so.6.2 .2` -o libreadline.so.6.2 readline.so vi_mode.so funmap.so keymaps.so parens.so search.so rltty.so complete.so bind.so isearch.so display.so signals.so util.so kill.so undo.so macro.so input.so callback.so terminal.so text.so nls.so misc.so xmalloc.so xfree.so history.so histexpand.so histfile.so histsearch.so shell.so mbutil.so tilde.so compat.so
    rm -f libhistory.so.6.2
    gcc -shared -Wl,-soname,libhistory.so.6.2 -L./lib/termcap -Wl,-rpath,/usr/local/lib -Wl,-soname,`basename libhistory.so.6.2 .2` -o libhistory.so.6.2 history.so histexpand.so histfile.so histsearch.so shell.so mbutil.so xmalloc.so xfree.so
    make[1]: Leaving directory '/tmp/pip-build-a0t6v7b1/readline/rl/readline-lib/shlib'

    ============ Building the readline extension module ============

    running install
    running build
    running build_ext
    building 'readline' extension
    creating build
    creating build/temp.linux-x86_64-3.6
    creating build/temp.linux-x86_64-3.6/Modules
    creating build/temp.linux-x86_64-3.6/Modules/3.x
    gcc -pthread -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -fPIC -DHAVE_RL_CALLBACK -DHAVE_RL_CATCH_SIGNAL -DHAVE_RL_COMPLETION_APPEND_CHARACTER -DHAVE_RL_COMPLETION_DISPLAY_MATCHES_HOOK -DHAVE_RL_COMPLETION_MATCHES -DHAVE_RL_COMPLETION_SUPPRESS_APPEND -DHAVE_RL_PRE_INPUT_HOOK -I. -I/home/cloud/work/python3.6.0/sqlalchemy-tutorial/include -I/home/cloud/local/python3.6.0/include/python3.6m -c Modules/3.x/readline.c -o build/temp.linux-x86_64-3.6/Modules/3.x/readline.o -Wno-strict-prototypes
    Modules/3.x/readline.c: In function ‘PyInit_readline’:
    Modules/3.x/readline.c:1179:34: warning: assignment from incompatible pointer type [-Wincompatible-pointer-types]
         PyOS_ReadlineFunctionPointer = call_readline;
                                      ^
    creating build/lib.linux-x86_64-3.6
    gcc -pthread -shared build/temp.linux-x86_64-3.6/Modules/3.x/readline.o readline/libreadline.a readline/libhistory.a -lncurses -o build/lib.linux-x86_64-3.6/readline.cpython-36m-x86_64-linux-gnu.so
    /usr/bin/ld: cannot find -lncurses
    collect2: error: ld returned 1 exit status
    error: command 'gcc' failed with exit status 1

    ----------------------------------------
Command "/home/cloud/work/python3.6.0/sqlalchemy-tutorial/bin/python3.6.0 -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-a0t6v7b1/readline/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-9mlhc520-record/install-record.txt --single-version-externally-managed --compile --install-headers /home/cloud/work/python3.6.0/sqlalchemy-tutorial/include/site/python3.6/readline" failed with error code 1 in /tmp/pip-build-a0t6v7b1/readline/