问题
Is there a better way to resolve the problem of hardcoding compatiable code when a library i use uses a different name of the function?
Also, I cannot change the library code. (because that function i'm using is EVERYWHERE in the old version of the code). The library is BeautifulSoup 3 and 4. see Method Name section in http://www.crummy.com/software/BeautifulSoup/bs4/doc/
Originally, i have bs4 code, but my users have bs3, so i have to put the following code everywhere:
try:
from bs4 import BeautifulSoup as bs
except:
from BeautifulSoup import BeautifulSoup as bs
page = '''<html>foo bar<p>blah blah black sheep</p> bar</html>'''
try:
p = bs(page).find_all('p')
except: # Imagine i have to do this all over my code that uses `find_all` or `findAll`
p = bs(page).findAll('p')
回答1:
May be you should just monkey-patch the bs:
try:
from bs4 import BeautifulSoup as bs
except:
from BeautifulSoup import BeautifulSoup as bs
bs.find_all = getattr(bs, 'find_all', False) or getattr(bs, 'findAll')
来源：https://stackoverflow.com/questions/20218788/how-to-resolve-the-hardcoding-when-a-newer-version-of-the-library-i-use-uses-a-d