old_contents: import numpy as np
  import scipy.sparse
  from abc import ABCMeta, abstractmethod
  
  from ..base import BaseLibSVM
  
  
  class SparseBaseLibSVM(BaseLibSVM):
      __metaclass__ = ABCMeta
  
      @abstractmethod
      def __init__(self, impl, kernel, degree, gamma, coef0,
                   tol, C, nu, epsilon, shrinking, probability, cache_size,
                   class_weight, verbose):
  
          assert kernel in self._sparse_kernels, \
                 "kernel should be one of %s, "\
                 "%s was given." % (self._kernel_types, kernel)
  
          super(SparseBaseLibSVM, self).__init__(impl, kernel, degree, gamma,
                  coef0, tol, C, nu, epsilon, shrinking, probability, cache_size,
                  True, class_weight, verbose)
  
      def fit(self, X, y, sample_weight=None):
          X = scipy.sparse.csr_matrix(X, dtype=np.float64)
          return super(SparseBaseLibSVM, self).fit(X, y, sample_weight)
  
new_contents: import numpy as np
  import scipy.sparse
  from abc import ABCMeta, abstractmethod
  
  from ..base import BaseLibSVM
  
  
  class SparseBaseLibSVM(BaseLibSVM):
      __metaclass__ = ABCMeta
  
      @abstractmethod
      def __init__(self, impl, kernel, degree, gamma, coef0,
                   tol, C, nu, epsilon, shrinking, probability, cache_size,
                   class_weight, verbose):
  
          assert kernel in self._sparse_kernels, \
                 "kernel should be one of %s, "\
                 "%s was given." % (self._kernel_types, kernel)
  
          super(SparseBaseLibSVM, self).__init__(impl, kernel, degree, gamma,
                  coef0, tol, C, nu, epsilon, shrinking, probability, cache_size,
                  True, class_weight, verbose)
  
      def fit(self, X, y, sample_weight=None):
          X = scipy.sparse.csr_matrix(X, dtype=np.float64)
          return super(SparseBaseLibSVM, self).fit(X, y,
                                                   sample_weight=sample_weight)
  
subject: FIX sparse OneClassSVM was using the wrong parameter