Parent class inside __name__ like this property still in the subclass inherits
the variable name in front of such a variable name only underlined this variable can not be imported at the time of other import file
xx : In order to avoid conflicts can define a variable behind underscore, such as class _ this can be used normally
why you want to privatize the whole of it?
Because a file in a variable in this file in normal use, but there are other files will be a conflict. So make a privatization
import as
import a as AA
The above process is to first define and then introduced into a variable named an A, and thereafter the module to the introduced point A
when introduced into the module must appear unsuccessful authentication sys.path
import time unsuccessful
import sys
sys.path
value path 'is a list of print are listed below
so when the program first began to import the call import.path
search the name you want to import the path of the path
and you can specify that the first search
sys.path.append
sys.path.insert
If the insert (0) then it means is inserted into the first
Re-import module
import has a feature to prevent the re-import program
when aa program running in another window to modify the program so aa aa in the original program will not be changed in time to re-import import nor the following code to re-import code
from imp import reload
reload(aa)
Import Scenario
whole a server, the server can not be stopped. But it takes place in this process I need to modify some code, then you can
modify reload. But only import can not be used with other
Multi-module development knowledge
However, import common have to write common.xxxx
from common import HANDLE_FLAG
# 让这个变量指向了common里的变量
# 代码中直接写HANDLE_FLAG
HANDLE_FLAG =Ture
Before HANDLE_FLAG point to point to the True Flase now HANDLE_FLAGA
but can not make changes to local variables common file changes
if you want to modify, then have to change from a local variable to be global variables
