MeCab の Python バインディングをインストールしようとしてIndexError on linux

22 Feb 2015

手短に．

ちょっと書捨てたいものがあって MeCab の Python(-3) binding をインストールしよう

python3対応 Mecabの紹介 - Python, web, Algorithm 技術的なメモ

さて

$ pip3 install mecab-python3
Downloading/unpacking mecab-python3
  Downloading mecab-python3-0.7.tar.gz (41kB): 41kB downloaded
  Running setup.py (path:/tmp/pip_build_lesguillemets/mecab-python3/setup.py) egg_info for package mecab-python3
    /bin/sh: 1: mecab-config: not found
    Traceback (most recent call last):
      File "<string>", line 17, in <module>
      File "/tmp/pip_build_lesguillemets/mecab-python3/setup.py", line 41, in <module>
        include_dirs=cmd2("mecab-config --inc-dir"),
      File "/tmp/pip_build_lesguillemets/mecab-python3/setup.py", line 21, in cmd2
        return cmd1(strings).split()
      File "/tmp/pip_build_lesguillemets/mecab-python3/setup.py", line 18, in cmd1
        return os.popen(strings).readlines()[0][:-1]
    IndexError: list index out of range
    Complete output from command python setup.py egg_info:
    /bin/sh: 1: mecab-config: not found

Traceback (most recent call last):

  File "<string>", line 17, in <module>

  File "/tmp/pip_build_lesguillemets/mecab-python3/setup.py", line 41, in <module>

    include_dirs=cmd2("mecab-config --inc-dir"),

  File "/tmp/pip_build_lesguillemets/mecab-python3/setup.py", line 21, in cmd2

    return cmd1(strings).split()

  File "/tmp/pip_build_lesguillemets/mecab-python3/setup.py", line 18, in cmd1

    return os.popen(strings).readlines()[0][:-1]

IndexError: list index out of range

なんや，と思うと

/bin/sh: 1: mecab-config: not found

mecab-config が実行したいのにないで，という感じらしい．

setup.py を書き換えることで回避もできるらしいが

terminal で

$ mecab-config
  The program 'mecab-config' is currently not installed. You can install it by typing:
  sudo apt-get install libmecab-dev

とありがたいお言葉を頂いたのでそれを行い

$ sudo apt-get install libmecab-dev

改めて

$ pip3 install mecab-python3

で成功します．