Move platform guessing to __init__.py

And import appropriate platform-specific module automatically

Author: ddemidov

ev3dev/__init__.py

@@ -1,3 +1,19 @@
-from .core import *
+import platform
 from .version import __version__
 
+# -----------------------------------------------------------------------------
+# Guess platform we are running on
+def current_platform():
+    machine = platform.machine()
+    if machine == 'armv5tejl':
+        return 'ev3'
+    elif machine == 'armv6l':
+        return 'brickpi'
+    else:
+        return 'unsupported'
+
+if current_platform() == 'brickpi':
+    from .brickpi import *
+else:
+    # Import ev3 by default, so that it is covered by documentation.
+    from .ev3 import *

ev3dev/core.py

@@ -30,7 +30,6 @@
 import os
 import fnmatch
 import numbers
-import platform
 import fcntl
 import array
 import mmap
@@ -42,18 +41,6 @@
 from subprocess import Popen
 
 
-# -----------------------------------------------------------------------------
-# Guess platform we are running on
-def current_platform():
-    machine = platform.machine()
-    if machine == 'armv5tejl':
-        return 'ev3'
-    elif machine == 'armv6l':
-        return 'brickpi'
-    else:
-        return 'unsupported'
-
-
 # -----------------------------------------------------------------------------
 # Attribute reader/writer with cached file access
 class FileCache(object):