Replace session parameter with Python run function

In hint and test functions, we don't need any session data except the
Python runner.

1 files changed, 3 insertions, 3 deletions

diff --git a/python/problems/introduction/fahrenheit_to_celsius/common.py b/python/problems/introduction/fahrenheit_to_celsius/common.py
index 5c8e0cd..34f2832 100644
--- a/python/problems/introduction/fahrenheit_to_celsius/common.py
+++ b/python/problems/introduction/fahrenheit_to_celsius/common.py
@@ -19,7 +19,7 @@ hint_type = {
     'no_input_call': Hint('no_input_call'),
 }
 
-def test(session, code):
+def test(python, code):
     # List of inputs: (expression to eval, stdin).
     test_in = [
         (None, '0\n'),
@@ -31,7 +31,7 @@ def test(session, code):
     ]
 
     # List of outputs: (expression result, stdout, stderr, exception).
-    answers = session.get_python().run(code=code, inputs=test_in, timeout=1.0)
+    answers = python(code=code, inputs=test_in, timeout=1.0)
     outputs = [ans[1] for ans in answers]
 
     n_correct = 0
@@ -40,7 +40,7 @@ def test(session, code):
             n_correct += 1
     return n_correct, len(test_in)
 
-def hint(session, code):
+def hint(python, code):
     if not code:
         return [{'id': 'plan'}]
     if not has_token_sequence(code, ['input']):