Source Code for Module UserList

 1  """A more or less complete user-defined wrapper around list objects.""" 
 2   
 3 -class UserList: 
 4 -    def __init__(self, initlist=None): 
 5          self.data = [] 
 6          if initlist is not None: 
 7              # XXX should this accept an arbitrary sequence? 
 8              if type(initlist) == type(self.data): 
 9                  self.data[:] = initlist 
10              elif isinstance(initlist, UserList): 
11                  self.data[:] = initlist.data[:] 
12              else: 
13                  self.data = list(initlist) 
14 -    def __repr__(self): return repr(self.data) 
15 -    def __lt__(self, other): return self.data <  self.__cast(other) 
16 -    def __le__(self, other): return self.data <= self.__cast(other) 
17 -    def __eq__(self, other): return self.data == self.__cast(other) 
18 -    def __ne__(self, other): return self.data != self.__cast(other) 
19 -    def __gt__(self, other): return self.data >  self.__cast(other) 
20 -    def __ge__(self, other): return self.data >= self.__cast(other) 
21 -    def __cast(self, other): 
22          if isinstance(other, UserList): return other.data 
23          else: return other 
24 -    def __cmp__(self, other): 
25          return cmp(self.data, self.__cast(other)) 
26 -    def __contains__(self, item): return item in self.data 
27 -    def __len__(self): return len(self.data) 
28 -    def __getitem__(self, i): return self.data[i] 
29 -    def __setitem__(self, i, item): self.data[i] = item 
30 -    def __delitem__(self, i): del self.data[i] 
31 -    def __getslice__(self, i, j): 
32          i = max(i, 0); j = max(j, 0) 
33          return self.__class__(self.data[i:j]) 
34 -    def __setslice__(self, i, j, other): 
35          i = max(i, 0); j = max(j, 0) 
36          if isinstance(other, UserList): 
37              self.data[i:j] = other.data 
38          elif isinstance(other, type(self.data)): 
39              self.data[i:j] = other 
40          else: 
41              self.data[i:j] = list(other) 
42 -    def __delslice__(self, i, j): 
43          i = max(i, 0); j = max(j, 0) 
44          del self.data[i:j] 
45 -    def __add__(self, other): 
46          if isinstance(other, UserList): 
47              return self.__class__(self.data + other.data) 
48          elif isinstance(other, type(self.data)): 
49              return self.__class__(self.data + other) 
50          else: 
51              return self.__class__(self.data + list(other)) 
52 -    def __radd__(self, other): 
53          if isinstance(other, UserList): 
54              return self.__class__(other.data + self.data) 
55          elif isinstance(other, type(self.data)): 
56              return self.__class__(other + self.data) 
57          else: 
58              return self.__class__(list(other) + self.data) 
59 -    def __iadd__(self, other): 
60          if isinstance(other, UserList): 
61              self.data += other.data 
62          elif isinstance(other, type(self.data)): 
63              self.data += other 
64          else: 
65              self.data += list(other) 
66          return self 
67 -    def __mul__(self, n): 
68          return self.__class__(self.data*n) 
69      __rmul__ = __mul__ 
70 -    def __imul__(self, n): 
71          self.data *= n 
72          return self 
73 -    def append(self, item): self.data.append(item) 
74 -    def insert(self, i, item): self.data.insert(i, item) 
75 -    def pop(self, i=-1): return self.data.pop(i) 
76 -    def remove(self, item): self.data.remove(item) 
77 -    def count(self, item): return self.data.count(item) 
78 -    def index(self, item, *args): return self.data.index(item, *args) 
79 -    def reverse(self): self.data.reverse() 
80 -    def sort(self, *args, **kwds): self.data.sort(*args, **kwds) 
81 -    def extend(self, other): 
82          if isinstance(other, UserList): 
83              self.data.extend(other.data) 
84          else: 
85              self.data.extend(other) 
86