Clone/Copy

[martynsmith]

It would be nice if there was an inline method clone that returned a copy of the object. It would mean you could do things like:

base_url.clone().set({path: '/method/1'})

Without affecting the original base_url object

[gruns]

A copy() method would be useful. I'll add it. copy() is Python's nomenclature for a shallow copy (dict, set, deque, etc), over clone().

In the mean time, you can create an inline copy with furl() and base_url's URL string

>>> copy = furl(base_url.url).set(path='/method/1')

In testing for the above I found a bug - the furl() constructor should accept another furl object, not just a URL string.

>>> f = furl('http://www.google.com/')
>>> copy = furl(f)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python2.7/dist-packages/furl/furl.py", line 659, in __init__
    self.load(url) # Raises ValueError on invalid url.
  File "/usr/local/lib/python2.7/dist-packages/furl/furl.py", line 668, in load
    tokens = urlsplit(url) # Raises ValueError on malformed IPv6 address.
  File "/usr/local/lib/python2.7/dist-packages/furl/furl.py", line 1022, in urlsplit
    toks = urlparse.urlsplit(url)
  File "/usr/lib/python2.7/urlparse.py", line 173, in urlsplit
    i = url.find(':')
AttributeError: 'furl' object has no attribute 'find'

I am consolidating both copy() and the furl() constructor bug in this issue, issue #11.

Thanks for your suggestion martynsmith.

[gruns]

copy() has been added to furl.

>>> f = furl('http://www.google.com/')
>>> f.copy().set(path='/pumps').url
http://www.google.com/pumps
>>> f.url
http://www.google.com/

The furl init() bug has also been fixed.

>>> f = furl('http://www.google.com/')
>>> copy = furl(f)

Thanks for bringing this issue to my attention martynsmith.