python3でMeCabがinstallできない！

Mecabはこのコマンドを入力すればインストールできると書いてあったので実行

pip install mecab-python3

結果

Collecting mecab-python3
  Using cached https://files.pythonhosted.org/packages/25/e9/bbf5fc790a2bedd96fbaf47a84afa060bfb0b3e0217e5f64b32bd4bbad69/mecab-python3-0.7.tar.gz
    Complete output from command python setup.py egg_info:
    /bin/sh: mecab-config: command not found
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/private/var/folders/db/zj9vr1xx11vdn8yzb3bvp6xw0000gn/T/pip-install-31zuvfh1/mecab-python3/setup.py", line 41, in <module>
        include_dirs=cmd2("mecab-config --inc-dir"),
      File "/private/var/folders/db/zj9vr1xx11vdn8yzb3bvp6xw0000gn/T/pip-install-31zuvfh1/mecab-python3/setup.py", line 21, in cmd2
        return cmd1(strings).split()
      File "/private/var/folders/db/zj9vr1xx11vdn8yzb3bvp6xw0000gn/T/pip-install-31zuvfh1/mecab-python3/setup.py", line 18, in cmd1
        return os.popen(strings).readlines()[0][:-1]
    IndexError: list index out of range

    ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /private/var/folders/db/zj9vr1xx11vdn8yzb3bvp6xw0000gn/T/pip-install-31zuvfh1/mecab-python3/

すると最後に、次のエラーが出てインストールができない！！！

Command "python setup.py egg_info" failed with error code 1 in /private/var/folders/db/zj9vr1xx11vdn8yzb3bvp6xw0000gn/T/pip-install-31zuvfh1/mecab-python3/

setup.pyを書き換えればよいみたいな記事もあったのですが、自分は以下のコマンドを実行した後に、再び実行したらエラーが発生せず、無事にインストールすることができました。

brew install mecab-ipadic

==> Installing dependencies for mecab-ipadic: mecab
==> Installing mecab-ipadic dependency: mecab
==> Downloading https://homebrew.bintray.com/bottles/mecab-0.996.el_capitan.bottle.3.tar.gz
######################################################################## 100.0%
==> Pouring mecab-0.996.el_capitan.bottle.3.tar.gz
🍺  /usr/local/Cellar/mecab/0.996: 20 files, 4.2MB
==> Installing mecab-ipadic
==> Downloading https://homebrew.bintray.com/bottles/mecab-ipadic-2.7.0-20070801.el_capitan.bottle.tar.gz
######################################################################## 100.0%
==> Pouring mecab-ipadic-2.7.0-20070801.el_capitan.bottle.tar.gz
==> Caveats
To enable mecab-ipadic dictionary, add to /usr/local/etc/mecabrc:
  dicdir = /usr/local/lib/mecab/dic/ipadic
==> Summary
🍺  /usr/local/Cellar/mecab-ipadic/2.7.0-20070801: 15 files, 50.6MB


pip install mecab-python3

Collecting mecab-python3
  Using cached https://files.pythonhosted.org/packages/25/e9/bbf5fc790a2bedd96fbaf47a84afa060bfb0b3e0217e5f64b32bd4bbad69/mecab-python3-0.7.tar.gz
Building wheels for collected packages: mecab-python3
  Running setup.py bdist_wheel for mecab-python3 ... done
  Stored in directory: /Users/admin/Library/Caches/pip/wheels/4c/07/3a/5f22ccc9f381f3bc01fa023202061cd1e0e9af855292f005dd
Successfully built mecab-python3
Installing collected packages: mecab-python3
Successfully installed mecab-python3-0.7

解決👍