如何使用BeautifulSoup解决此命名空间冲突？

Question

I'm having some trouble with Python namespaces.

With import bs4

>>> import bs4
>>> print type(x)
>>> <class 'bs4.element.NavigableString'>
>>> isinstance(x,bs4.element.NavigableString)
>>> True

But I want to use from bs4 import BeautifulSoup and then I get an error

>>> from bs4 import BeautifulSoup
>>> print type(x)
>>> <class 'bs4.element.NavigableString'>
>>> isinstance(x,bs4.element.NavigableString)
>>> ...
NameError: name 'bs4' is not defined


isinstance(x,bs4.element.NavigableString)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
             What should go here? 

Checked also isinstance not working correctly with beautifulsoup(NameError) but it didn't help me.

Answer 1

正如@jonrsharpe所说，用from bs4 import BeautifulSoup, element替换import语句from bs4 import BeautifulSoup, element并用element.NavigableString替换有问题的行。