binman: Move to absolute imports

At present binman sets the python path on startup so that it can access
the libraries it needs. If we convert to use absolute imports this is not
necessary.

Move binman to use absolute imports. This enables removable of the path
adjusting in Entry also.

Signed-off-by: Simon Glass <sjg@chromium.org>

1 files changed, 5 insertions, 11 deletions

diff --git a/tools/binman/entry.py b/tools/binman/entry.py
index 1244d36c20..9f62322bed 100644
--- a/tools/binman/entry.py
+++ b/tools/binman/entry.py
@@ -9,9 +9,9 @@ import importlib
 import os
 import sys
 
-import fdt_util
+from dtoc import fdt_util
 import tools
-from tools import ToHex, ToHexSize
+from patman.tools import ToHex, ToHexSize
 import tout
 
 modules = {}
@@ -63,7 +63,7 @@ class Entry(object):
     def __init__(self, section, etype, node, name_prefix=''):
         # Put this here to allow entry-docs and help to work without libfdt
         global state
-        import state
+        from binman import state
 
         self.section = section
         self.etype = etype
@@ -108,15 +108,11 @@ class Entry(object):
 
         # Import the module if we have not already done so.
         if not module:
-            old_path = sys.path
-            sys.path.insert(0, os.path.join(our_path, 'etype'))
             try:
-                module = importlib.import_module(module_name)
+                module = importlib.import_module('binman.etype.' + module_name)
             except ImportError as e:
                 raise ValueError("Unknown entry type '%s' in node '%s' (expected etype/%s.py, error '%s'" %
                                  (etype, node_path, module_name, e))
-            finally:
-                sys.path = old_path
             modules[module_name] = module
 
         # Look up the expected class name
@@ -590,9 +586,7 @@ features to produce new behaviours.
             modules.remove('_testing')
         missing = []
         for name in modules:
-            if name.startswith('__'):
-                continue
-            module = Entry.Lookup(name, name)
+            module = Entry.Lookup('WriteDocs', name)
             docs = getattr(module, '__doc__')
             if test_missing == name:
                 docs = None