copy interval error

[ozzzp]

I need to copy/deepcopy a interval with the module copy, but it's always error:

k = interval([-3, -2], [0, 1])
A=copy.copy(k)
Traceback (most recent call last):
File "", line 1, in
File "/usr/local/Cellar/python/2.7.12/Frameworks/Python.framework/Versions/2.7/lib/python2.7/copy.py", line 96, in copy
return _reconstruct(x, rv, 0)
File "/usr/local/Cellar/python/2.7.12/Frameworks/Python.framework/Versions/2.7/lib/python2.7/copy.py", line 329, in _reconstruct
y = callable(*args)
File "/usr/local/Cellar/python/2.7.12/Frameworks/Python.framework/Versions/2.7/lib/python2.7/copy_reg.py", line 93, in newobj
return cls.new(cls, *args)
File "/usr/local/lib/python2.7/site-packages/interval/init.py", line 101, in new
return cls.union(process(x) for x in args)
File "/usr/local/lib/python2.7/site-packages/interval/init.py", line 181, in union
return cls._canonical(c for i in intervals for c in i)
File "/usr/local/lib/python2.7/site-packages/interval/init.py", line 158, in _canonical
components = [c for c in components if c.inf <= c.sup]
File "/usr/local/lib/python2.7/site-packages/interval/init.py", line 181, in
return cls._canonical(c for i in intervals for c in i)
File "/usr/local/lib/python2.7/site-packages/interval/init.py", line 101, in
return cls.union(process(x) for x in args)
File "/usr/local/lib/python2.7/site-packages/interval/init.py", line 100, in process
raise cls.ComponentError("Invalid interval component: " + repr(x))
ComponentError: Invalid interval component: ((-3.0, -2.0), (0.0, 1.0))

for deepcopy:

k = interval([-3, -2], [0, 1])
A=copy.copy(k)
Traceback (most recent call last):
File "", line 1, in
File "/usr/local/Cellar/python/2.7.12/Frameworks/Python.framework/Versions/2.7/lib/python2.7/copy.py", line 96, in copy
return _reconstruct(x, rv, 0)
File "/usr/local/Cellar/python/2.7.12/Frameworks/Python.framework/Versions/2.7/lib/python2.7/copy.py", line 329, in _reconstruct
y = callable(*args)
File "/usr/local/Cellar/python/2.7.12/Frameworks/Python.framework/Versions/2.7/lib/python2.7/copy_reg.py", line 93, in newobj
return cls.new(cls, _args)
File "/usr/local/lib/python2.7/site-packages/interval/init.py", line 101, in new
return cls.union(process(x) for x in args)
File "/usr/local/lib/python2.7/site-packages/interval/init.py", line 181, in union
return cls._canonical(c for i in intervals for c in i)
File "/usr/local/lib/python2.7/site-packages/interval/init.py", line 158, in _canonical
components = [c for c in components if c.inf <= c.sup]
File "/usr/local/lib/python2.7/site-packages/interval/init.py", line 181, in
return cls._canonical(c for i in intervals for c in i)
File "/usr/local/lib/python2.7/site-packages/interval/init.py", line 101, in
return cls.union(process(x) for x in args)
File "/usr/local/lib/python2.7/site-packages/interval/init.py", line 100, in process
raise cls.ComponentError("Invalid interval component: " + repr(x))
ComponentError: Invalid interval component: ((-3.0, -2.0), (0.0, 1.0))
k = interval([-3, -2], [0, 1])
A=copy.deepcopy(k)
Traceback (most recent call last):
File "", line 1, in
File "/usr/local/Cellar/python/2.7.12/Frameworks/Python.framework/Versions/2.7/lib/python2.7/copy.py", line 190, in deepcopy
y = _reconstruct(x, rv, 1, memo)
File "/usr/local/Cellar/python/2.7.12/Frameworks/Python.framework/Versions/2.7/lib/python2.7/copy.py", line 328, in _reconstruct
args = deepcopy(args, memo)
File "/usr/local/Cellar/python/2.7.12/Frameworks/Python.framework/Versions/2.7/lib/python2.7/copy.py", line 163, in deepcopy
y = copier(x, memo)
File "/usr/local/Cellar/python/2.7.12/Frameworks/Python.framework/Versions/2.7/lib/python2.7/copy.py", line 237, in _deepcopy_tuple
y.append(deepcopy(a, memo))
File "/usr/local/Cellar/python/2.7.12/Frameworks/Python.framework/Versions/2.7/lib/python2.7/copy.py", line 163, in deepcopy
y = copier(x, memo)
File "/usr/local/Cellar/python/2.7.12/Frameworks/Python.framework/Versions/2.7/lib/python2.7/copy.py", line 237, in _deepcopy_tuple
y.append(deepcopy(a, memo))
File "/usr/local/Cellar/python/2.7.12/Frameworks/Python.framework/Versions/2.7/lib/python2.7/copy.py", line 190, in deepcopy
y = _reconstruct(x, rv, 1, memo)
File "/usr/local/Cellar/python/2.7.12/Frameworks/Python.framework/Versions/2.7/lib/python2.7/copy.py", line 329, in _reconstruct
y = callable(_args)
File "/usr/local/Cellar/python/2.7.12/Frameworks/Python.framework/Versions/2.7/lib/python2.7/copy_reg.py", line 93, in newobj
return cls.new(cls, *args)
TypeError: new() takes exactly 3 arguments (2 given)

also it cannot be copied by module pickle. Any ideas?

[taschini]

I'll have a look.

[taschini]

I just released version 1.1.1 that fixes this issues. Now pickling, shallow copy and deep copy all work.

[ozzzp]

Interesting, the cause is just lack of the getnewargs method which I've never met before.
Learning!

[taschini]

Can you confirm that it is now working for you?

[ozzzp]

Yes, I have tested. Now it works