fixed ImportError if django-bleach not installed

localized_fields/__init__.py

@@ -1,7 +1,7 @@
 from .util import get_language_codes
 from .forms import LocalizedFieldForm, LocalizedFieldWidget
-from .fields import (LocalizedField, LocalizedBleachField,
+from .fields import (LocalizedField, LocalizedAutoSlugField,
-                     LocalizedAutoSlugField, LocalizedUniqueSlugField)
+                     LocalizedUniqueSlugField)
 from .mixins import AtomicSlugRetryMixin
 from .models import LocalizedModel
 from .localized_value import LocalizedValue
@@ -18,3 +18,11 @@ __all__ = [
     'LocalizedModel',
     'AtomicSlugRetryMixin'
 ]
+
+try:
+    from .fields import LocalizedBleachField
+    __all__ += [
+        'LocalizedBleachField'
+    ]
+except ImportError:
+    pass

localized_fields/fields/__init__.py

@@ -1,12 +1,18 @@
 from .localized_field import LocalizedField
 from .localized_autoslug_field import LocalizedAutoSlugField
 from .localized_uniqueslug_field import LocalizedUniqueSlugField
-from .localized_bleach_field import LocalizedBleachField
 
 
 __all__ = [
     'LocalizedField',
     'LocalizedAutoSlugField',
     'LocalizedUniqueSlugField',
-    'LocalizedBleachField',
 ]
+
+try:
+    from .localized_bleach_field import LocalizedBleachField
+    __all__ += [
+        'LocalizedBleachField'
+    ]
+except ImportError:
+    pass