module and package

qiwsir · qiwsir · commit 7edf24b3e09f · 2015-11-03T19:02:05.000+08:00
diff --git a/219.md b/219.md
@@ -191,7 +191,52 @@ Python不是一个封闭的体系，是一个开放系统。开放系统的最
 ##模块中的'__all__'
 
 上面的模块虽然比较简单，但是已经显示了编写模块和在程序中导入模块的基本方式。在实践中，所编写的模块也许更复杂一点，比如，我写了这么一个模块，并把其文件命名为21901.py
-http://python.jobbole.com/81187/
+http://python.jobbole.com/81187/mZ
+>>> import sys
+>>> sys.path.append("~/Documents/StarterLearningPython/2code/pp.py")
+>>> import pp
+>>> pp.public_variable
+'Hello, I am a public variable.'
+>>> pp._private_variable
+'Hi, I am a private variable.'
+>>> from pp import *
+>>> _private_variable
+Traceback (most recent call last):
+      File "<stdin>", line 1, in <module>
+      NameError: name '_private_variable' is not defined
+      >>> public_variable
+      'Hello, I am a public variable.'
+      >>> public_teacher()
+      I am a public teacher, I am from JP.
+      >>> _private_teacher()
+      Traceback (most recent call last):
+            File "<stdin>", line 1, in <module>
+            NameError: name '_private_teacher' is not defined
+            >>> import pp
+            >>> pp.public_teacher()
+            I am a public teacher, I am from JP.
+            >>> pp._private_teacher()
+            I am a private teacher, I am from CN.
+
+>>> import sys
+>>> sys.path.append("~/Documents/StarterLearningPython/2code/pp.py")
+>>> from pp import *
+>>> dir(pp)
+Traceback (most recent call last):
+      File "<stdin>", line 1, in <module>
+      NameError: name 'pp' is not defined
+      >>> public_variable
+      Traceback (most recent call last):
+            File "<stdin>", line 1, in <module>
+            NameError: name 'public_variable' is not defined
+            >>> _private_variable
+            'Hi, I am a private variable.'
+            >>> public_teacher()
+            I am a public teacher, I am from JP.
+            >>> _private_teacher()
+            Traceback (most recent call last):
+                  File "<stdin>", line 1, in <module>
+                  NameError: name '_private_teacher' is not defined
 
 
 ##`__init__.py`方法
@@ -202,4 +247,4 @@ http://python.jobbole.com/81187/
 
 [总目录](./index.md)&nbsp;&nbsp;&nbsp;|&nbsp;&nbsp;&nbsp;[上节：错误和异常(3)](./218.md)&nbsp;&nbsp;&nbsp;|&nbsp;&nbsp;&nbsp;[下节：标准库(1)](./220.md)
 
-如果你认为有必要打赏我，请通过支付宝：**qiwsir@126.com**,不胜感激。
+如果你认为有必要打赏我，请通过支付宝：**qiwsir@126.com**,不胜感激。
diff --git a/2code/pp.py b/2code/pp.py
@@ -1,6 +1,8 @@
 # /usr/bin/env python
 # coding:utf-8
 
+__all__ = ['_private_variable', 'public_teacher']
+
 public_variable = "Hello, I am a public variable."
 _private_variable = "Hi, I am a private variable."
 
diff --git a/2code/pp.pyc b/2code/pp.pyc
