Merge 3.2

- Issue #13506: Add '' to path for IDLE Shell when started and restarted with Restart Shell.
  Original patches by Marco Scataglini and Roger Serwy.
Merge 3.2 #13506 Add '' to path for interactive interpreter by adding with_cwd
parameter to PyShell.PyShell.transfer_path() and changing elsewhere as needed.
Original patches by Marco Scataglini and Roger Serwy.

Lib/idlelib/PyShell.py

@@ -411,11 +411,11 @@ class ModifiedInterpreter(InteractiveInterpreter):
         self.rpcclt.register("flist", self.tkconsole.flist)
         self.rpcclt.register("linecache", linecache)
         self.rpcclt.register("interp", self)
-        self.transfer_path()
+        self.transfer_path(with_cwd=True)
         self.poll_subprocess()
         return self.rpcclt
 
-    def restart_subprocess(self):
+    def restart_subprocess(self, with_cwd=False):
         if self.restarting:
             return self.rpcclt
         self.restarting = True
@@ -439,7 +439,7 @@ class ModifiedInterpreter(InteractiveInterpreter):
         except socket.timeout as err:
             self.display_no_subprocess_error()
             return None
-        self.transfer_path()
+        self.transfer_path(with_cwd=with_cwd)
         # annotate restart in shell window and mark it
         console.text.delete("iomark", "end-1c")
         if was_executing:
@@ -492,12 +492,18 @@ class ModifiedInterpreter(InteractiveInterpreter):
             except OSError:
                 return
 
-    def transfer_path(self):
+    def transfer_path(self, with_cwd=False):
+        if with_cwd:        # Issue 13506
+            path = ['']     # include Current Working Directory
+            path.extend(sys.path)
+        else:
+            path = sys.path
+            
         self.runcommand("""if 1:
         import sys as _sys
         _sys.path = %r
         del _sys
-        \n""" % (sys.path,))
+        \n""" % (path,))
 
     active_seq = None
 
@@ -1191,7 +1197,8 @@ class PyShell(OutputWindow):
         self.text.see("restart")
 
     def restart_shell(self, event=None):
-        self.interp.restart_subprocess()
+        "Callback for Run/Restart Shell Cntl-F6"
+        self.interp.restart_subprocess(with_cwd=True)
 
     def showprompt(self):
         self.resetoutput()

Lib/idlelib/ScriptBinding.py

@@ -144,10 +144,9 @@ class ScriptBinding:
             return 'break'
         if not self.tabnanny(filename):
             return 'break'
-        shell = self.shell
+        interp = self.shell.interp
-        interp = shell.interp
         if PyShell.use_subprocess:
-            shell.restart_shell()
+            interp.restart_subprocess(with_cwd=False)
         dirname = os.path.dirname(filename)
         # XXX Too often this discards arguments the user just set...
         interp.runcommand("""if 1:

Misc/ACKS

@@ -880,6 +880,7 @@ Mark Sapiro
 Ty Sarna
 Ben Sayer
 sbt
+Marco Scataglini
 Andrew Schaaf
 Michael Scharf
 Andreas Schawo

Misc/NEWS

@@ -463,6 +463,9 @@ Core and Builtins
 Library
 -------
 
+- Issue #13506: Add '' to path for IDLE Shell when started and restarted with Restart Shell.
+  Original patches by Marco Scataglini and Roger Serwy.
+
 - Issue #8828: Add new function os.replace(), for cross-platform renaming
   with overwriting.