python - 如何在 Mac 上使用 PyPy？

Question

PyPy 的速度 promise 让我想尝试一下。不幸的是，我阅读的有关该主题的教程都没有真正帮助我理解最基础的知识，即如何(通过简单的步骤):

• 在 Mac 上安装 PyPy
• 运行 .py 脚本

我读到从 bin/ 下载、解压并运行 pypy myscript.py 应该可以解决问题，但到目前为止我运气不好。这是我得到的:

MyMacbook:bin User$ pypy myscript.py
-bash: pypy: command not found

谁能帮我了解一下 PyPy 的基本用法？

Answer 1

您是否尝试过使用自制软件 (http://brew.sh/)？

~ $ brew search pypy
pypy

看起来“brew install pypy”应该可以帮助您。

~ $ brew versions pypy
Warning: brew-versions is unsupported and may be removed soon.
Please use the homebrew-versions tap instead:
https://github.com/Homebrew/homebrew-versions
2.2.0    git checkout 4d471b1 /usr/local/Library/Formula/pypy.rb
2.1.0    git checkout ff5dd19 /usr/local/Library/Formula/pypy.rb
2.0.2    git checkout 58b36e9 /usr/local/Library/Formula/pypy.rb
2.0.1    git checkout 82b72d3 /usr/local/Library/Formula/pypy.rb
2.0      git checkout 280581d /usr/local/Library/Formula/pypy.rb
1.9      git checkout 28557b8 /usr/local/Library/Formula/pypy.rb
1.8      git checkout 93bda7d /usr/local/Library/Formula/pypy.rb
1.7      git checkout eee60ad /usr/local/Library/Formula/pypy.rb
1.6.0    git checkout b9b1f35 /usr/local/Library/Formula/pypy.rb
1.5.0    git checkout d0c75a9 /usr/local/Library/Formula/pypy.rb
1.4.1    git checkout 46c553a /usr/local/Library/Formula/pypy.rb
1.4      git checkout 61dd587 /usr/local/Library/Formula/pypy.rb
1.3      git checkout a546a1f /usr/local/Library/Formula/pypy.rb
1.2      git checkout 89de8bb /usr/local/Library/Formula/pypy.rb

编辑:或者，您是否检查过您是否已将安装放在您的路径上？例如，我将其抓取并放入我的主目录中。

~ $ ll ~/ | grep pypy
drwxr-xr-x@  9 squiddly  staff    306 Nov 27 07:42 pypy-2.2.1-osx64

然后在我的 .bash_profile 中放入以下行:

# Put pypy on my path
PATH=$PATH:$HOME/pypy-2.2.1-osx64/bin
export PATH

现在我可以从任何地方运行 pypy ~/scripts/test.py。

---- 编辑 2 ----回答关于丢失包裹的最后一个问题:

“如果你想安装 3rd 方库，最方便的方法是安装 distribute 和 pip:”

$ curl -O http://python-distribute.org/distribute_setup.py
$ curl -O https://raw.github.com/pypa/pip/master/contrib/get-pip.py
$ ./pypy-2.1/bin/pypy distribute_setup.py
$ ./pypy-2.1/bin/pypy get-pip.py
$ ./pypy-2.1/bin/pip install pygments  # for example

“第 3 方库将安装在 pypy-2.1/site-packages 中，脚本安装在 pypy-2.1/bin 中”

-- 从这里开始:http://doc.pypy.org/en/latest/getting-started.html#installing-pypy