Index: Lib/pdb.py
===================================================================
--- Lib/pdb.py	(revision 77684)
+++ Lib/pdb.py	(working copy)
@@ -1200,7 +1200,7 @@
         self._wait_for_mainpyfile = 1
         self.mainpyfile = self.canonic(filename)
         self._user_requested_quit = 0
-        statement = 'execfile( "%s")' % filename
+        statement = 'execfile(%r)' % filename
         self.run(statement)
 
 # Simplified interface
Index: Lib/test/test_pdb.py
===================================================================
--- Lib/test/test_pdb.py	(revision 0)
+++ Lib/test/test_pdb.py	(revision 0)
@@ -0,0 +1,30 @@
+import sys
+import os
+import subprocess
+import unittest
+
+class Tester(unittest.TestCase):
+    # if the filename has something that resolves to a python
+    #  escape character (such as \t), it will fail
+    test_fn = '.\\test7750.py' 
+
+    def test_issue7750(self):
+        # the issue does not apply if os.sep is not backslash
+        if not os.path.sep == '\\': return
+        with open(self.test_fn, 'w') as f:
+            f.write('print("hello world")')
+        cmd = [sys.executable, '-m', 'pdb', self.test_fn,]
+        proc = subprocess.Popen(cmd,
+            stdout=subprocess.PIPE,
+            stdin=subprocess.PIPE,
+            stderr=subprocess.STDOUT,
+            )
+        stdout, stderr = proc.communicate('q\n')
+        self.assertFalse('IOError' in stdout, "pdb munged the filename")
+
+    def tearDown(self):
+        if os.path.isfile(self.test_fn):
+            os.remove(self.test_fn)
+
+if __name__ == '__main__':
+    unittest.main()
\ No newline at end of file

Property changes on: Lib\test\test_pdb.py
___________________________________________________________________
Added: svn:keywords
   + Id Rev Author Date