set socket as inheritable

_pydevd_bundle/pydevd_comm.py

@@ -437,6 +437,11 @@ def start_client(host, port):
 
     s = socket(AF_INET, SOCK_STREAM)
 
+    # Since python 3.4, sockets are by default non inheritable,
+    # inheritance must be set to true to allow applications to work with child processes
+    if hasattr(s, 'set_inheritable'):
+        s.set_inheritable(True)
+
     #  Set TCP keepalive on an open socket.
     #  It activates after 1 second (TCP_KEEPIDLE,) of idleness,
     #  then sends a keepalive ping once every 3 seconds (TCP_KEEPINTVL),

tests_python/resources/_debugger_case_execv.py

@@ -0,0 +1,10 @@
+import sys, os
+import threading
+
+print("break here")
+if len(sys.argv) == 1:
+    os.execv(sys.executable, [sys.executable] + sys.argv + ["1"])
+
+if len(sys.argv) == 2:
+    print("TEST SUCEEDED")
+

tests_python/test_debugger.py

@@ -17,7 +17,7 @@
     IS_APPVEYOR, wait_for_condition, CMD_GET_FRAME, CMD_GET_BREAKPOINT_EXCEPTION,
     CMD_THREAD_SUSPEND, CMD_STEP_OVER, REASON_STEP_OVER, CMD_THREAD_SUSPEND_SINGLE_NOTIFICATION,
     CMD_THREAD_RESUME_SINGLE_NOTIFICATION, REASON_STEP_RETURN, REASON_STEP_RETURN_MY_CODE,
-    REASON_STEP_OVER_MY_CODE, REASON_STEP_INTO, CMD_THREAD_KILL, IS_PYPY, REASON_STOP_ON_START)
+    REASON_STEP_OVER_MY_CODE, REASON_STEP_INTO, CMD_THREAD_KILL, IS_PYPY, REASON_STOP_ON_START, CMD_THREAD_RUN)
 from _pydevd_bundle.pydevd_constants import IS_WINDOWS, IS_PY38_OR_GREATER, \
     IS_MAC
 from _pydevd_bundle.pydevd_comm_constants import CMD_RELOAD_CODE, CMD_INPUT_REQUESTED
@@ -4201,6 +4201,26 @@ def test_frame_eval_mode_corner_case_many(case_setup, break_name):
 
             writer.finished_ok = True
 
+
+def test_execv(case_setup):
+    from tests_python.debugger_unittest import AbstractWriterThread
+    with case_setup.test_file('_debugger_case_execv.py') as writer:
+        break_line = writer.get_line_index_with_content('break here')
+        writer.write_add_breakpoint(break_line)
+
+        writer.write_make_initial_run()
+
+        hit = writer.wait_for_breakpoint_hit()
+        writer.write_run_thread(hit.thread_id)
+
+        writer.wait_for_message(CMD_THREAD_RUN, expect_xml=False)
+
+        hit = writer.wait_for_breakpoint_hit()
+        writer.write_run_thread(hit.thread_id)
+
+        writer.finished_ok = True
+
+
 # Jython needs some vars to be set locally.
 # set JAVA_HOME=c:\bin\jdk1.8.0_172
 # set PATH=%PATH%;C:\bin\jython2.7.0\bin