Add feature to make libs importable

libs/__init__.py

@@ -0,0 +1,47 @@
+
+import os
+import sys
+
+import libs.util
+
+ROOT_DIR = libs.util.module_root()
+LIB_DIR = os.path.join(ROOT_DIR, 'libs')
+
+COMMON = 'common'
+CUSTOM = 'custom'
+PY2 = 'py2'
+WIN = 'win'
+
+LOADED = {}
+MANDATORY = {
+    COMMON,
+    CUSTOM,
+}
+DIRECTORY = {
+    lib: os.path.join(LIB_DIR, lib)
+    for lib in [COMMON, CUSTOM, PY2, WIN]
+}
+
+if sys.platform == 'win32':
+    MANDATORY.add(WIN)
+
+if sys.version_info < (3, ):
+    MANDATORY.add(PY2)
+
+
+def add_libs(name):
+    if name in MANDATORY and name not in LOADED:
+        path = libs.util.add_path(DIRECTORY[name])
+        if path:
+            LOADED[name] = path
+            return path
+
+
+def add_all_libs():
+    for lib in MANDATORY:
+        add_libs(lib)
+    return is_finished()
+
+
+def is_finished():
+    return MANDATORY.issubset(LOADED.keys())