学习一门热门语言
计算机语言都是从helloworld开始
Mac或Linux下自带Python，windows需要安装，具体安装步骤问度娘。
建立python脚本如下，vim helloword.py
#!/usr/bin/python
#coding=utf-8
#剽悍的代码不需要解析
#解析也没用就那么几行没人看
print'Hello Python!'
print'在这个世界小小python'
print'You can\'t imagine how powerful you are!'
然后运行pythonhelloworld.py
注意：
在Mac下安装pylint可能遇到点问题，
luntekiMBP:pythonapple$ /usr/bin/python -m pip install pylint
/usr/bin/python: Nomodule named pip
解决方法是安装pip,
sudo easy_install pip
这样就可以安装pylint了
安装过程又出现
AluntekiMBP:pythonapple$ /usr/bin/python -m pip install pylint Collecting pylint Using cachedpylint-1.7.1-py2.py3-none-any.whl Collecting astroid>=1.5.1 (from pylint) Using cachedastroid-1.5.3-py2.py3-none-any.whl Collecting singledispatch; python_version <"3.4" (from pylint) Using cachedsingledispatch-3.4.0.3-py2.py3-none-any.whl Collecting mccabe (from pylint) Using cachedmccabe-0.6.1-py2.py3-none-any.whl Collecting backports.functools-lru-cache;python_version == "2.7" (from pylint) Using cachedbackports.functools_lru_cache-1.4-py2.py3-none-any.whl
Requirement alreadysatisfied: six in/System/Library/Frameworks/Python.framework/Versions/2.7/Extra
s/lib/python(from pylint) Collecting isort>=4.2.5 (from pylint) Using cached isort-4.2.15-py2.py3-none-any.whl Collecting configparser; python_version =="2.7" (from pylint) Using cached configparser-3.5.0.tar.gz Collecting enum34>=1.1.3; python_version <"3.4" (from astroid>=1.5.1->pylint) Using cachedenum34-1.1.6-py2-none-any.whl Collecting lazy-object-proxy (fromastroid>=1.5.1->pylint) Using cachedlazy-object-proxy-1.3.1.tar.gz Collecting wrapt (fromastroid>=1.5.1->pylint) Using cached wrapt-1.10.10.tar.gz Installing collected packages: enum34,singledispatch, lazy-object-proxy, backports.functools-lru-ca che, wrapt, astroid, mccabe, isort,configparser, pylint
Exception:
raceback(most recent call last): File"/Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg/pip/basecommand.py",line 215, in main status = self.run(options, args) File"/Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg/pip/commands/install.py",line 342, in run prefix=options.prefix_path, File"/Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg/pip/req/req_set.py",line 784, in inst all **kwargs File"/Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg/pip/req/req_install.py",line 851, in install
self.move_wheel_files(self.source_dir, root=root, prefix=prefix)
File"/Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg/pip/req/req_install.py",line 1064, in
move_wheel_files isolated=self.isolated, File"/Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg/pip/wheel.py",line 345, in move_wheel _files clobber(source, lib_dir, True) File "/Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg/pip/wheel.py",line 316, in clobber ensure_dir(destdir) File"/Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg/pip/utils/__init__.py",line 83, in en sure_dir os.makedirs(path) File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/os.py",line 157, in makedirs mkdir(name, mode) OSError: [Errno 13] Permission denied: '/Library/Python/2.7/site-packages/enum'
这个应该是权限错误。
没办法一个个创建文件夹，比如在/Library/Python/2.7/site-packages/下执行
sudo mkdir enum
后面的权限报错一样的处理方法，一步步试验，直到安装成功
其实不用这么麻烦
sudo /usr/bin/python -mpip install pylint
就可以了
