1 files changed, 9 insertions, 2 deletions
diff --git a/Lib/test/support/os_helper.py b/Lib/test/support/os_helper.py
index 46ae53aa11a..7a67d87fb9e 100644
--- a/Lib/test/support/os_helper.py
+++ b/Lib/test/support/os_helper.py
@@ -592,10 +592,17 @@ def fd_count():
     """Count the number of open file descriptors.
     """
     if sys.platform.startswith(('linux', 'freebsd', 'emscripten')):
+        fd_path = "/proc/self/fd"
+    elif sys.platform == "darwin":
+        fd_path = "/dev/fd"
+    else:
+        fd_path = None
+
+    if fd_path is not None:
         try:
-            names = os.listdir("/proc/self/fd")
+            names = os.listdir(fd_path)
             # Subtract one because listdir() internally opens a file
-            # descriptor to list the content of the /proc/self/fd/ directory.
+            # descriptor to list the content of the directory.
             return len(names) - 1
         except FileNotFoundError:
             pass