Fixed bug in assert statement

pyc2py.py

@@ -106,7 +106,7 @@ def delete_statements(self, match, rec = False):
  def write(self, indent = ''):
  self.replace_statements(
  match = lambda s: isinstance(s, If) and len(s.statements) == 1 and isinstance(s.statements[0], Raise) and s.statements[0].exception == Variable('AssertionError'),
- new = lambda s: Assert(s.expr if isinstance(s.expr, UnaryOp) and s.expr.op == 'not ' else UnaryOp('not ', s.expr), s.statements[0].param)
+ new = lambda s: Assert(s.expr.expr if isinstance(s.expr, UnaryOp) and s.expr.op == 'not ' else UnaryOp('not ', s.expr), s.statements[0].param)
  )
  if len(self.statements) == 0:
  self.append_statement(Pass())