Make call of os.getppid() conditional: it is not available on Windows.
diff --git a/Doc/library/multiprocessing.rst b/Doc/library/multiprocessing.rst
index a9512f3..f503f4d 100644
--- a/Doc/library/multiprocessing.rst
+++ b/Doc/library/multiprocessing.rst
@@ -79,7 +79,8 @@
def info(title):
print(title)
print('module name:', __name__)
- print('parent process:', os.getppid())
+ if hasattr(os, 'getppid'): # only available on Unix
+ print('parent process:', os.getppid())
print('process id:', os.getpid())
def f(name):