mysqlerror : (2019, "Can't initialize character set utf8mb4 (path: /usr/share/mysql/charsets/)")

my.confで文字コード設定確認

[client]
default-character-set = utf8mb4
[mysql]
default-character-set = utf8mb4
[mysqld]
character-set-client-handshake = FALSE
character-set-server = utf8mb4
collation-server = utf8mb4_unicode_ci

alter文でdatabase,tableの文字コード変更

settingsで文字コード指定

  'OPTIONS': {'charset':'utf8mb4'}

/usr/share/mysql/charsets/Index.xml の <charset name="utf8">　を　<charset name="utf8mb4"> に書き換え。