Add type-hints to adaptive/tests/test_learners.py

Author: basnijholt

adaptive/tests/test_learners.py

@@ -12,6 +12,7 @@
 
 import flaky
 import numpy as np
+import pandas
 import pytest
 import scipy.spatial
 
@@ -27,7 +28,6 @@
     LearnerND,
     SequenceLearner,
 )
-from adaptive.learner.learner1D import with_pandas
 from adaptive.runner import simple
 
 try:
@@ -708,7 +708,6 @@ def wrapper(*args, **kwargs):
     return wrapper
 
 
-@pytest.mark.skipif(not with_pandas, reason="pandas is not installed")
 @run_with(
     Learner1D,
     Learner2D,
@@ -720,8 +719,6 @@ def wrapper(*args, **kwargs):
     with_all_loss_functions=False,
 )
 def test_to_dataframe(learner_type, f, learner_kwargs):
-    import pandas
-
     if learner_type is LearnerND:
         kw = {"point_names": tuple("xyz")[: len(learner_kwargs["bounds"])]}
     else: