Simplify drivers loading

chirp/directory.py

@@ -14,10 +14,9 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-import glob
 import os
 import logging
-import sys
+import chirp.drivers
 
 from chirp import chirp_common, errors
 
@@ -172,27 +171,10 @@ class DynamicRadioAlias(rclass):
 
 
 def import_drivers(limit=None):
-    frozen = getattr(sys, 'frozen', False)
-    if sys.platform == 'win32' and frozen:
-        # We are in a frozen win32 build, so we can not glob
-        # the driver files, but we do not need to anyway
-        import chirp.drivers
-        for module in chirp.drivers.__all__:
-            try:
-                __import__('chirp.drivers.%s' % module)
-            except Exception as e:
-                print('Failed to import %s: %s' % (module, e))
-        return
-
-    # Safe import of everything in chirp/drivers. We need to import them
-    # to get them to register, but should not abort if one import fails
-    chirp_module_base = os.path.dirname(os.path.abspath(__file__))
-    driver_files = glob.glob(os.path.join(chirp_module_base,
-                                          'drivers',
-                                          '*.py'))
-    for driver_file in driver_files:
-        module, ext = os.path.splitext(driver_file)
-        driver_module = os.path.basename(module)
-        if limit and driver_module not in limit:
+    for module in chirp.drivers.__all__:
+        if limit and module not in limit:
             continue
-        __import__('chirp.drivers.%s' % driver_module)
+        try:
+            __import__('chirp.drivers.%s' % module)
+        except Exception as e:
+            print('Failed to import %s: %s' % (module, e))

chirp/drivers/__init__.py

@@ -1,16 +1,8 @@
-import os
 import sys
-from glob import glob
-import warnings
+import pkgutil
 
-# This won't be here in the frozen build because we convert this file to
-# a static list of driver modules to import.
-warnings.filterwarnings('once', category=DeprecationWarning,
-                        module=__name__)
-
-module_dir = os.path.dirname(sys.modules["chirp.drivers"].__file__)
+module_dir = sys.modules["chirp.drivers"].__path__
 __all__ = []
-for i in sorted(glob(os.path.join(module_dir, "*.py"))):
-    name = os.path.basename(i)[:-3]
-    if not name.startswith("__"):
-        __all__.append(name)
+for i in pkgutil.iter_modules(module_dir):
+    __all__.append(i.name)
+__all__.sort()