From d4d1bf4a564d6d4be99fee5d9098910b520f6e30 Mon Sep 17 00:00:00 2001
From: henrykironde <henrykironde@gmail.com>
Date: Wed, 7 Nov 2018 18:09:31 -0500
Subject: [PATCH] Refactor class StepwisePlugin.

Initialize class properties.
Check attributes before accessing them, LBYL.
---
 AUTHORS                   |  1 +
 changelog/4304.bugfix.rst |  1 +
 src/_pytest/stepwise.py   | 21 ++++++++++++---------
 3 files changed, 14 insertions(+), 9 deletions(-)
 create mode 100644 changelog/4304.bugfix.rst

diff --git a/AUTHORS b/AUTHORS
index dabeb1c061c..879381e44bd 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -195,6 +195,7 @@ Samuel Dion-Girardeau
 Samuele Pedroni
 Sankt Petersbug
 Segev Finer
+Senyondo Henry
 Serhii Mozghovyi
 Simon Gomizelj
 Skylar Downes
diff --git a/changelog/4304.bugfix.rst b/changelog/4304.bugfix.rst
new file mode 100644
index 00000000000..6228c7b0a6f
--- /dev/null
+++ b/changelog/4304.bugfix.rst
@@ -0,0 +1 @@
+Possible bug with the 3.10.0 release
diff --git a/src/_pytest/stepwise.py b/src/_pytest/stepwise.py
index 1efa2e7ca74..d075e65e533 100644
--- a/src/_pytest/stepwise.py
+++ b/src/_pytest/stepwise.py
@@ -28,10 +28,12 @@ def __init__(self, config):
         self.config = config
         self.active = config.getvalue("stepwise")
         self.session = None
-
-        if self.active:
-            self.lastfailed = config.cache.get("cache/stepwise", None)
-            self.skip = config.getvalue("stepwise_skip")
+        self.lastfailed = None
+        self.skip = None
+        if hasattr(self.config, "cache"):
+            if self.active:
+                self.lastfailed = config.cache.get("cache/stepwise", None)
+                self.skip = config.getvalue("stepwise_skip")
 
     def pytest_sessionstart(self, session):
         self.session = session
@@ -95,8 +97,9 @@ def pytest_runtest_logreport(self, report):
                     self.lastfailed = None
 
     def pytest_sessionfinish(self, session):
-        if self.active:
-            self.config.cache.set("cache/stepwise", self.lastfailed)
-        else:
-            # Clear the list of failing tests if the plugin is not active.
-            self.config.cache.set("cache/stepwise", [])
+        if hasattr(self.config, "cache"):
+            if self.active:
+                self.config.cache.set("cache/stepwise", self.lastfailed)
+            else:
+                # Clear the list of failing tests if the plugin is not active.
+                self.config.cache.set("cache/stepwise", [])