fix #948: cannot install psutil with PYTHONOPTIMIZE=2

3 files changed, 12 insertions, 3 deletions

diff --git a/HISTORY.rst b/HISTORY.rst
index 25223322..94feab8e 100644
--- a/HISTORY.rst
+++ b/HISTORY.rst
@@ -1,5 +1,13 @@
 *Bug tracker at https://github.com/giampaolo/psutil/issues*
 
+5.0.2
+=====
+
+**Bug fixes**
+
+- 948_: cannot install psutil with PYTHONOPTIMIZE=2.
+
+
 5.0.1
 =====
 
diff --git a/psutil/__init__.py b/psutil/__init__.py
index 4abb5766..40403392 100644
--- a/psutil/__init__.py
+++ b/psutil/__init__.py
@@ -143,8 +143,8 @@ elif SUNOS:
     from ._pssunos import CONN_BOUND  # NOQA
     from ._pssunos import CONN_IDLE  # NOQA
 
-    # This is public API and it will be retrieved from _pssunos.py
-    # via sys.modules.
+    # This is public writable API which is read from _pslinux.py and
+    # _pssunos.py via sys.modules.
     PROCFS_PATH = "/proc"
 
 else:  # pragma: no cover
@@ -222,6 +222,7 @@ if (int(__version__.replace('.', '')) !=
 # --- exceptions
 # =====================================================================
 
+
 class Error(Exception):
     """Base exception class. All other psutil exceptions inherit
     from this one.
diff --git a/setup.py b/setup.py
index 4e3b0c6b..04f6436a 100755
--- a/setup.py
+++ b/setup.py
@@ -255,7 +255,7 @@ def main():
     setup(
         name='psutil',
         version=VERSION,
-        description=__doc__.replace('\n', '').strip(),
+        description=__doc__ or ''.replace('\n', '').strip(),
         long_description=get_description(),
         keywords=[
             'ps', 'top', 'kill', 'free', 'lsof', 'netstat', 'nice', 'tty',