我创建了一个python-packages/MyLibPackage,我将在我的项目中导入它.
MyLibPackage.____init____.py包括mymodiciation.py.此外,MyLibPackage文件夹包含另一个文件:base_classes.py(= external project)
mymodiciation.py导入" from base_classes import *".
目标:我可以导入MyLibPackage,其中包含base_classes(= external project)中的所有类.如果我需要修改一些类或函数,我可以在mymodiciation.py中覆盖它.它有效,但我遇到了问题.例如:
我在mymodiciation.py中覆盖了这些类:
class Bookcollection(Bookcollection):
new_member = "lalala"
class user(user):
def get_books(self):
return Bookcollection()
如果我做:
from MyLibPackage import *
x = user()
books = x.get_books()
然后对象Bookcollection具有属性"new_member".好!但如果我这样做:
from MyLibPackage import *
x = shelf() #this class is not overwritten and used also the object "Bookcolelction"
books = x.get_books()
然后对象Bookcollection没有属性"new_member",因为他使用MyLibPackage.base_classes.Bookcollection实例化而不是我的覆盖类MyLibPackage.mymodiciation.Bookcollection
我怎么说:如果我在mymodiciation中覆盖一个类,那么MyLibPackage必须使用它,尽管当调用来自MyLibPackage.base_classes.shelf(get_books)时.
I have a python script that works with threads, processes, and connections to a database. When I run my script, python crashes.
I cannot explicitly detect the case in which this happens.
Now I am looking for tools to get more information when python crashes, or a viewer to see all my created processes/connections.
我知道这很有效:
def locations(city, *other_cities):
print(city, other_cities)
现在我需要两个变量参数列表,比如
def myfunction(type, id, *arg1, *arg2):
# do somethong
other_function(arg1)
#do something
other_function2(*arg2)
但是Python不允许两次使用它
我正在使用wxPython并获得了一些带有一些项目的树.现在我需要一个函数,它按名称给我树项目对象.
例如:item = self.GetItemByName("MyStories")
我在文档中找不到这样的功能.
有没有人有任何想法？