无法在python中获取当前网址 [英] can't able to get current url in python

问题描述

我已经创建了一个类和方法，如下所示。我需要获取当前页面的网址。但是调用get_full_path（）时出错。

I have created a class and method as like below. I need to get current page url. But am getting error while calling get_full_path().

class A(object):
   def get_user(request):
       current_url = request.get_full_path()
   return current_url


class B(A):
    b = A()
    b.get_user()
    print b.current_url


Traceback Error:
    AttributeError: 'A' object has no attribute 'get_full_path'

我犯了什么错误？

推荐答案

此代码由于某些误解而无法正常工作：

This code cannot work because has some misconceptions:

1. 您应该将请求传递给 get_user


2. 首先 get_user 的参数应该是 self ，它指向 A 实例。


3. 对象无法返回值（您在 A class 返回current_url >）。


4. 在此示例中不必使用类继承。

1. You should pass request to get_user
2. First argument of get_user should be self which points to A instance.
3. Object cannot return value (you have return current_url in A class).
4. It is not necessary to use class inheritance in this example.

您的代码应如下所示：

class A(object):
    current_url = None
    def get_user(self, request):
        self.current_url = request.get_full_path()

b = A()
b.get_user(request)
print b.current_url

或者如果您要将完整路径传递给 class A ，并且出于任何原因在继承的类B中使用它：

Or if you want to pass full path to constructor of class A, and for whatever reason use it in inherited class B:

class A(object):
    def __init__(self, current_url):
        self.url = current_url

    def get_path(self):
        return self.current_url

class B(A):
    # whatever you need here
    pass

b = B(request.get_full_path())
print b.get_path() # prints current path

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