1 files changed, 0 insertions, 78 deletions
diff --git a/Lib/multiprocessing/popen.py b/Lib/multiprocessing/popen.py
deleted file mode 100644
index b0c80d5..0000000
--- a/Lib/multiprocessing/popen.py
+++ /dev/null
@@ -1,78 +0,0 @@
-import sys
-import threading
-
-__all__ = ['Popen', 'get_spawning_popen', 'set_spawning_popen',
-           'assert_spawning']
-
-#
-# Check that the current thread is spawning a child process
-#
-
-_tls = threading.local()
-
-def get_spawning_popen():
-    return getattr(_tls, 'spawning_popen', None)
-
-def set_spawning_popen(popen):
-    _tls.spawning_popen = popen
-
-def assert_spawning(obj):
-    if get_spawning_popen() is None:
-        raise RuntimeError(
-            '%s objects should only be shared between processes'
-            ' through inheritance' % type(obj).__name__
-            )
-
-#
-#
-#
-
-_Popen = None
-
-def Popen(process_obj):
-    if _Popen is None:
-        set_start_method()
-    return _Popen(process_obj)
-
-def get_start_method():
-    if _Popen is None:
-        set_start_method()
-    return _Popen.method
-
-def set_start_method(meth=None, *, start_helpers=True):
-    global _Popen
-    try:
-        modname = _method_to_module[meth]
-        __import__(modname)
-    except (KeyError, ImportError):
-        raise ValueError('could not use start method %r' % meth)
-    module = sys.modules[modname]
-    if start_helpers:
-        module.Popen.ensure_helpers_running()
-    _Popen = module.Popen
-
-
-if sys.platform == 'win32':
-
-    _method_to_module = {
-        None: 'multiprocessing.popen_spawn_win32',
-        'spawn': 'multiprocessing.popen_spawn_win32',
-        }
-
-    def get_all_start_methods():
-        return ['spawn']
-
-else:
-    _method_to_module = {
-        None: 'multiprocessing.popen_fork',
-        'fork': 'multiprocessing.popen_fork',
-        'spawn': 'multiprocessing.popen_spawn_posix',
-        'forkserver': 'multiprocessing.popen_forkserver',
-        }
-
-    def get_all_start_methods():
-        from . import reduction
-        if reduction.HAVE_SEND_HANDLE:
-            return ['fork', 'spawn', 'forkserver']
-        else:
-            return ['fork', 'spawn']