github.com/grumpyhome/grumpy@v0.3.1-0.20201208125205-7b775405bdf1/grumpy-runtime-src/third_party/stdlib/UserList.py (about)

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