diff -U4 -r dumb-init-1.2.5--orig/testing/__init__.py dumb-init-1.2.5--patched/testing/__init__.py

--- dumb-init-1.2.5--orig/testing/__init__.py	2020-12-10 19:55:42.000000000 +0100

+++ dumb-init-1.2.5--patched/testing/__init__.py	2022-11-12 02:42:07.751248222 +0100

@@ -7,11 +7,8 @@

 from contextlib import contextmanager

 from subprocess import PIPE

 from subprocess import Popen

-from py._path.local import LocalPath

-

-

 # these signals cause dumb-init to suspend itself

 SUSPEND_SIGNALS = frozenset([

     signal.SIGTSTP,

     signal.SIGTTOU,

@@ -48,16 +45,17 @@

 def child_pids(pid):

     """Return a list of direct child PIDs for the given PID."""

     children = set()

-    for p in LocalPath('/proc').listdir():

+    for p in os.listdir('/proc'):

         try:

-            stat = open(p.join('stat').strpath).read()

+            with open(os.path.join('/proc', p, 'stat')) as f:

+                stat = f.read()

             m = re.match(r'^\d+ \(.+?\) [a-zA-Z] (\d+) ', stat)

             assert m, stat

             ppid = int(m.group(1))

             if ppid == pid:

-                children.add(int(p.basename))

+                children.add(int(p))

         except OSError:

             # Happens when the process exits after listing it, or between

             # opening stat and reading it.

             pass

@@ -75,14 +73,15 @@

 def is_alive(pid):

     """Return whether a process is running with the given PID."""

-    return LocalPath('/proc').join(str(pid)).isdir()

+    return os.path.isdir(os.path.join('/proc', str(pid)))

 def process_state(pid):

     """Return a process' state, such as "stopped" or "running"."""

-    status = LocalPath('/proc').join(str(pid), 'status').read()

+    with open(os.path.join('/proc', str(pid), 'status')) as f:

+        status = f.read()

     m = re.search(r'^State:\s+[A-Z] \(([a-z]+)\)$', status, re.MULTILINE)

     return m.group(1)

Only in dumb-init-1.2.5--patched/testing: __init__.py.orig