change type() check to isinstance()

pynestml/symbols/variable_symbol.py

@@ -160,7 +160,7 @@ def has_delay_parameter(self):
  Returns whether this variable has a delay value associated with it.
  :return: bool
  """
- return self.delay_parameter is not None and type(self.delay_parameter) == str
+ return self.delay_parameter is not None and isinstance(self.delay_parameter, str)
 
  def get_block_type(self):
  """
@@ -425,7 +425,7 @@ def equals(self, other):
  :return: True if equal, otherwise False.
  :rtype: bool
  """
- return (type(self) != type(other)
+ return (isinstance(other, type(self))
  and self.get_referenced_object() == other.get_referenced_object()
  and self.get_symbol_name() == other.get_symbol_name()
  and self.get_corresponding_scope() == other.get_corresponding_scope()

pynestml/utils/ast_utils.py

@@ -1197,7 +1197,7 @@ def get_expr_from_kernel_var(cls, kernel: ASTKernel, var_name: str) -> Union[AST
  """
  Get the expression using the kernel variable
  """
- assert type(var_name) == str
+ assert instanceof(var_name, str)
  for var, expr in zip(kernel.get_variables(), kernel.get_expressions()):
  if var.get_complete_name() == var_name:
  return expr