python3を使いたくなったので最初のところのメモ。
python3を入れる
localhost:~ yoichan$ python3
-bash: python3: command not found
localhost:~ yoichan$ brew install python3
...
localhost:~ yoichan$ python3 -V
Python 3.6.2
virtualenvを入れる
localhost:~ yoichan$ pip3 install virtualenv
Collecting virtualenv
Downloading virtualenv-15.1.0-py2.py3-none-any.whl (1.8MB)
100% |████████████████████████████████| 1.8MB 397kB/s
Installing collected packages: virtualenv
Successfully installed virtualenv-15.1.0
localhost:work yoichan$ virtualenv Komachin
Using base prefix '/usr/local/Cellar/python3/3.6.2/Frameworks/Python.framework/Versions/3.6'
New python executable in /Users/yoichan/work/Komachin/bin/python3.6
Also creating executable in /Users/yoichan/work/Komachin/bin/python
Installing setuptools, pip, wheel...done.
環境を作る
localhost:work yoichan$ mkdir Komachin
localhost:work yoichan$ cd Komachin/
localhost:Komachin yoichan$ mkdir env
localhost:Komachin yoichan$ virtualenv env
Using base prefix '/usr/local/Cellar/python3/3.6.2/Frameworks/Python.framework/Versions/3.6'
New python executable in /Users/yoichan/work/Komachin/env/bin/python3.6
Also creating executable in /Users/yoichan/work/Komachin/env/bin/python
Installing setuptools, pip, wheel...done.
activateするとつくった環境のコマンドが使われる
localhost:Komachin yoichan$ source env/bin/activate
(env) localhost:Komachin yoichan$ which python
/Users/yoichan/work/Komachin/env/bin/python
(env) localhost:Komachin yoichan$ which pip
/Users/yoichan/work/Komachin/env/bin/pip
(env) localhost:Komachin yoichan$ ls -l env/bin/
total 136
-rw-r--r-- 1 yoichan staff 2089 8 26 17:46 activate
-rw-r--r-- 1 yoichan staff 1031 8 26 17:46 activate.csh
-rw-r--r-- 1 yoichan staff 2185 8 26 17:46 activate.fish
-rw-r--r-- 1 yoichan staff 1137 8 26 17:46 activate_this.py
-rwxr-xr-x 1 yoichan staff 262 8 26 17:46 easy_install
-rwxr-xr-x 1 yoichan staff 262 8 26 17:46 easy_install-3.6
-rwxr-xr-x 1 yoichan staff 234 8 26 17:46 pip
-rwxr-xr-x 1 yoichan staff 234 8 26 17:46 pip3
-rwxr-xr-x 1 yoichan staff 234 8 26 17:46 pip3.6
lrwxr-xr-x 1 yoichan staff 9 8 26 17:46 python -> python3.6
-rwxr-xr-x 1 yoichan staff 2348 8 26 17:46 python-config
lrwxr-xr-x 1 yoichan staff 9 8 26 17:46 python3 -> python3.6
-rwxr-xr-x 1 yoichan staff 13068 8 26 17:46 python3.6
-rwxr-xr-x 1 yoichan staff 241 8 26 17:46 wheel
hello worldしてみる
(env) localhost:scripts yoichan$ vi hello.py
# hello.py
print("Hello world!")
(env) localhost:scripts yoichan$ python hello.py
Hello world!
よさそう。