Make tuple unpacking more explicit

Author: alok

reptile/main.py

@@ -129,6 +129,7 @@ def REPTILE(
  epochs: int = EPOCHS,
 ) -> Weights:
  """Run one iteration of REPTILE."""
+
  weights = [sgd(meta_weights, epochs) for _ in range(meta_batch_size)]
 
  # TODO Implement custom optimizer that makes this work with builtin
@@ -187,7 +188,7 @@ def REPTILE(
  if PLOT:
 
  ax.set_title(f'REPTILE after {iteration:n} iterations')
- curve, = ax.plot(
+ (curve, ) = ax.plot(
  x_all.numpy(),
  model(Variable(x_all)).data.numpy(),
  label=f'Pred after {TEST_GRAD_STEPS} gradient steps.',