Restructure to have commands be a subpackage.

psh/__init__.py

@@ -1,7 +1,7 @@
-from psh.commands import registered_cmds
+from psh.commands.core import registered_cmds
 
 # Import the exported commands
-from psh.example_cmd import *
+from psh.commands import *
 
 # Instantiate the registered commands
 for name, cls in registered_cmds.items():

psh/commands/__init__.py

@@ -0,0 +1,3 @@
+from psh.commands.echo import *
+from psh.commands.example import *
+from psh.commands.raw import *

psh/commands/echo.py

@@ -1,20 +1,8 @@
-from psh.commands import BaseCommand, register_cmd
+from psh.commands.core import BaseCommand, register_cmd
 
 from psh.tree import TreeNode
 
 
-@register_cmd("example")
-class Example(BaseCommand):
-    """Simple command that just returns 'example' and 'command'. Does
-    nothing at all with the input."""
-
-    def call(self, *args, **kwargs):
-        def output_generator():
-            yield TreeNode(b'example')
-            yield TreeNode(b'command')
-        return output_generator
-
-
 @register_cmd("echo")
 class Echo(BaseCommand):
     """Echoes anything from the command line arguments as well as input

psh/commands/example.py

@@ -0,0 +1,15 @@
+from psh.commands.core import BaseCommand, register_cmd
+
+from psh.tree import TreeNode
+
+
+@register_cmd("example")
+class Example(BaseCommand):
+    """Simple command that just returns 'example' and 'command'. Does
+    nothing at all with the input."""
+
+    def call(self, *args, **kwargs):
+        def output_generator():
+            yield TreeNode(b'example')
+            yield TreeNode(b'command')
+        return output_generator

psh/commands/formatters.py

@@ -1,4 +1,4 @@
-from psh.commands import BaseCommand
+from psh.commands.core import BaseCommand
 
 
 class Printer(BaseCommand):

psh/commands/raw.py

@@ -1,6 +1,6 @@
 import shlex
 
-from psh.formatters import Printer
+from psh.commands.formatters import Printer
 from psh.commands import BaseCommand
 from psh.tree import TreeNode
 

psh/console.py

@@ -3,7 +3,7 @@ import code
 import os
 import readline
 
-from psh.commands import registered_cmds
+from psh.commands.core import registered_cmds
 
 DEFAULT_HISTORY_FILE = "~/.psh_history"
 

psh/run.py

@@ -1,10 +1,9 @@
 import os
 import os.path
 
-from psh.formatters import *
+from psh.commands.formatters import Printer
 
-from psh.example_cmd import Echo, Example
+from psh.commands import Echo, Example, RawCommand
-from psh.raw_commands import RawCommand
 
 # Load all of the commands in the path into the global namespace as raw
 # commands.

test/utils.py

@@ -1,4 +1,4 @@
-from psh.commands import BaseCommand
+from psh.commands.core import BaseCommand
 
 from io import StringIO