How to run MeCab on Ubuntu 18.04 LTS Python

Here is a summary of how to run MeCab in Python on Ubuntu 18.04 LTS.

Install MeCab

1. Execute the sudo apt install mecab libmecab-dev mecab-ipadic-utf8 command to install MeCab.
2. (If none of the following applies, skip it)

• When using mecab-ipadic-NEologd as a morphological analysis dictionary

1. Run the sudo apt install git make curl xz-utils file command to install the required packages.
2. Run the cd / tmp command and change to the tmp directory.
3. Execute the git clone --depth 1 https://github.com/neologd/mecab-ipadic-neologd.git command to clone mecab-ipadic-NEologd.
4. Execute the cd mecab-ipadic-neologd command and change to the cloned directory.
5. Run the ./bin/install-mecab-ipadic-neologd -n command to install mecab-ipadic-NEologd.

• You will be asked if you want to install it on the way, so enter yes.
• It will be quite heavy on the way.
• As a morphological analysis dictionary, UniDic and mecab-unidic-NEologd When using /README.ja.md)

1. Install UniDic.

• When installing UniDic using APT (usually here)

1. Run the sudo apt install unidic-mecab command to install UniDic.
2. Run the sudo update-alternatives --config mecab-dictionary command to change the default dictionary to UniDic.

• If you want to use the latest version of UniDic

4. From "UniDic" National Institute for Japanese Language and Language Short Unit Automatic Analysis Dictionary | Latest Version Download to the latest version [UniDic](http://unidic.ninjal. Download ac.jp/).
5. Unzip UniDic in the / usr / lib / mecab / dic directory.
6. [Only when using mecab-unidic-NEologd as a morphological analysis dictionary]
7. Run the sudo apt install git make curl xz-utils file command to install the required packages.
8. Run the cd / tmp command and change to the tmp directory.
9. Execute the git clone --depth 1 https://github.com/neologd/mecab-unidic-neologd command to clone mecab-unidic-NEologd.
10. Execute the cd mecab-unidic-neologd command to change to the cloned directory.
11. Run the ./bin/install-mecab-unidic-neologd -n command to install mecab-unidic-NEologd.

• You will be asked if you want to install it on the way, so enter yes.
• It will be quite heavy on the way.

• When using MeCab official Python binding
• For Python2 Run the pip install mecab-python command to install the official MeCab Python bindings.
• For Python3 Run the pip install mecab-python3 command to install the official MeCab Python bindings.
• When using natto-py Run the pip install natto-py command to install natto-py.

Regarding mecab-ipadic-NEeologd and mecab-unidic-NEologd

update

It seems that the update will be done twice a week (Monday, Thursday).

2. Run the cd / tmp command and change to the tmp directory.

• For mecab-ipadic-NEologd

3. Execute the git clone --depth 1 https://github.com/neologd/mecab-ipadic-neologd.git command to clone mecab-ipadic-NEologd.
4. Execute the cd mecab-ipadic-neologd command and change to the cloned directory.
5. Run the ./bin/install-mecab-ipadic-neologd -n command to install mecab-ipadic-NEologd.

• For mecab-unidic-NEologd

3. Execute the git clone --depth 1 https://github.com/neologd/mecab-unidic-neologd.git command to clone mecab-unidic-NEologd.
4. Execute the cd mecab-unidic-neologd command to change to the cloned directory.
5. Run the ./bin/install-mecab-unidic-neologd -n command to install mecab-unidic-NEologd.

How to use the dictionary

For IPAdic and UniDic

Give -d / var / lib / mecab / dic / {dictionary name} to the argument of MeCab.

For mecab-ipadic-NEeologd and mecab-unidic-NEologd

Give -d / usr / lib / mecab / dic / {dictionary name} to the argument of MeCab.

Related article

• How to specify the output format of MeCab --Qiita