diff --git a/PKG-INFO b/PKG-INFO
index 5733b62..a575371 100644
--- a/PKG-INFO
+++ b/PKG-INFO
@@ -38,12 +38,18 @@ Install some Pythons::
 Switch python in the $PATH::
 
   pythonbrew switch 2.6.6
-  pythonbrew switch Python-2.5.5
+  pythonbrew switch 2.5.5
 
 Using python in the PATH::
 
   pythonbrew use 2.6.6
 
+Runs a named python file against specified and/or all pythons::
+
+  pythonbrew py test.py
+  pythonbrew py -v test.py # Show version
+  pythonbrew py -p 2.6.6 -p 3.1.2 test.py # Using specified python versions
+
 List the installed versions of Python::
 
   pythonbrew list
@@ -76,7 +82,7 @@ COMMANDS
 ========
 
 install <version>
-  Build and install the given version of Python.
+  Build and install the given version of python.
   
   Setuptools and pip is automatically installed.
   
@@ -92,10 +98,10 @@ use <version>
   Using the given version of python.
 
 list
-  List the installed versions of Python.
+  List the installed all pythons.
   
 list -k <version>
-  List the available install version of python.
+  List the available install pythons.
   
 uninstall <version>
   Uninstall the given version of python.
@@ -116,7 +122,7 @@ Options
 =======
 
 \-f | --force
-  Force installation of a Python. (skip `make test`)
+  Force installation of a python. (skip `make test`)
 
 \-C | --configure
   Custom configure options.
diff --git a/README.rst b/README.rst
index 8fcb020..b2d3093 100644
--- a/README.rst
+++ b/README.rst
@@ -43,6 +43,12 @@ Using python in the PATH::
 
   pythonbrew use 2.6.6
 
+Runs a named python file against specified and/or all pythons::
+
+  pythonbrew py test.py
+  pythonbrew py -v test.py # Show version
+  pythonbrew py -p 2.6.6 -p 3.1.2 test.py # Using specified python versions
+
 List the installed versions of Python::
 
   pythonbrew list
@@ -75,7 +81,7 @@ COMMANDS
 ========
 
 install <version>
-  Build and install the given version of Python.
+  Build and install the given version of python.
   
   Setuptools and pip is automatically installed.
   
@@ -91,10 +97,10 @@ use <version>
   Using the given version of python.
 
 list
-  List the installed versions of Python.
+  List the installed all pythons.
   
 list -k <version>
-  List the available install version of python.
+  List the available install pythons.
   
 uninstall <version>
   Uninstall the given version of python.
@@ -115,7 +121,7 @@ Options
 =======
 
 \-f | --force
-  Force installation of a Python. (skip `make test`)
+  Force installation of a python. (skip `make test`)
 
 \-C | --configure
   Custom configure options.
diff --git a/pythonbrew/commands/list.py b/pythonbrew/commands/list.py
index 3952ec5..e3a2e7b 100644
--- a/pythonbrew/commands/list.py
+++ b/pythonbrew/commands/list.py
@@ -9,7 +9,7 @@ from pythonbrew.log import logger
 class ListCommand(Command):
     name = "list"
     usage = "%prog [VERSION]"
-    summary = "List the installed versions of Python"
+    summary = "List the installed all pythons"
     
     def __init__(self):
         super(ListCommand, self).__init__()
@@ -37,7 +37,7 @@ class ListCommand(Command):
     def installed(self, options, args):
         logger.info('# installed pythons')
         cur = get_current_python_path()
-        for d in sorted(os.listdir('%s/' % PATH_PYTHONS)):
+        for d in sorted(os.listdir(PATH_PYTHONS)):
             if cur == os.path.join(PATH_PYTHONS, d, 'bin','python'):
                 logger.info('%s (*)' % d)
                 cur = None
diff --git a/pythonbrew/commands/py.py b/pythonbrew/commands/py.py
new file mode 100644
index 0000000..d6b90fa
--- /dev/null
+++ b/pythonbrew/commands/py.py
@@ -0,0 +1,51 @@
+import os
+import sys
+from pythonbrew.basecommand import Command
+from pythonbrew.define import PATH_PYTHONS
+from pythonbrew.util import Package
+from pythonbrew.log import logger
+from subprocess import PIPE, Popen
+
+class PyCommand(Command):
+    name = "py"
+    usage = "%prog PYTHON_FILE"
+    summary = "Runs a named python file against specified and/or all pythons"
+    
+    def __init__(self):
+        super(PyCommand, self).__init__()
+        self.parser.add_option(
+            "-p", "--python",
+            dest="pythons",
+            action="append",
+            default=[],
+            help="Using specified python versions."
+        )
+        self.parser.add_option(
+            "-v", "--verbose",
+            dest="verbose",
+            action="store_true",
+            default=False,
+            help="Show python version."
+        )
+    
+    def run_command(self, options, args):
+        if not args:
+            logger.info("Unrecognized command line argument: argument not found.")
+            sys.exit(1)
+        python_file = args[0]
+        
+        pythons = self._get_pythons(options.pythons)
+        for d in pythons:
+            path = os.path.join(PATH_PYTHONS, d, 'bin', 'python')
+            if os.path.isfile(path) and os.access(path, os.X_OK):
+                if options.verbose:
+                    logger.info('*** %s ***' % d)
+                p = Popen("%s %s" % (path, python_file), shell=True)
+                p.wait()
+    
+    def _get_pythons(self, _pythons):
+        pythons = [Package(p).name for p in _pythons]
+        return [d for d in sorted(os.listdir(PATH_PYTHONS)) 
+                if not pythons or d in pythons]
+
+PyCommand()