Fix comparison against installed PyTest version

AUTHORS.rst

@@ -36,3 +36,4 @@ Authors
 * Albert Tugushev - https://github.com./atugushev
 * Martín Gaitán - https://github.com./mgaitan
 * Hugo van Kemenade - https://github.com./hugovk
+* Michael Manganiello - https://github.com./adamantike

CHANGELOG.rst

@@ -1,6 +1,12 @@
 Changelog
 =========
 
+2.8.2 (unreleased)
+------------------
+
+* Fixed ``RemovedInPytest4Warning`` when using Pytest 3.10.
+  Contributed by Michael Manganiello in `#354 <https://github.com./pytest-dev/pytest-cov/pull/354>`_.
+
 2.8.1 (2019-10-05)
 ------------------
 

src/pytest_cov/plugin.py

@@ -11,6 +11,8 @@
 from . import embed
 from . import engine
 
+PYTEST_VERSION = tuple(map(int, pytest.__version__.split('.')[:3]))
+
 
 class CoverageError(Exception):
     """Indicates that our coverage is too low"""
@@ -260,7 +262,7 @@ def pytest_runtestloop(self, session):
                 message = 'Failed to generate report: %s\n' % exc
                 session.config.pluginmanager.getplugin("terminalreporter").write(
                     'WARNING: %s\n' % message, red=True, bold=True)
-                if pytest.__version__ >= '3.8':
+                if PYTEST_VERSION >= (3, 8):
                     warnings.warn(pytest.PytestWarning(message))
                 else:
                     session.config.warn(code='COV-2', message=message)
@@ -274,7 +276,7 @@ def pytest_terminal_summary(self, terminalreporter):
         if self._disabled:
             message = 'Coverage disabled via --no-cov switch!'
             terminalreporter.write('WARNING: %s\n' % message, red=True, bold=True)
-            if pytest.__version__ >= '3.8':
+            if PYTEST_VERSION >= (3, 8):
                 warnings.warn(pytest.PytestWarning(message))
             else:
                 terminalreporter.config.warn(code='COV-1', message=message)