fix the bug: miss import after install

paddlespeech/s2t/decoders/__init__.py

@@ -11,15 +11,3 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-from paddlespeech.s2t.utils.log import Log
-
-try:
-    from .ctcdecoder import swig_wrapper
-except:
-    logger = Log(__name__).getlog()
-    try:
-        from paddlespeech.s2t.utils import dynamic_pip_install
-        package_name = 'paddlespeech_ctcdecoders'
-        dynamic_pip_install.install(package_name)
-    except Exception as e:
-        logger.info("paddlespeech_ctcdecoders not installed!")

paddlespeech/s2t/modules/ctc.py

@@ -33,6 +33,9 @@ except:
         from paddlespeech.s2t.utils import dynamic_pip_install
         package_name = 'paddlespeech_ctcdecoders'
         dynamic_pip_install.install(package_name)
+        from paddlespeech.s2t.decoders.ctcdecoder.swig_wrapper import ctc_beam_search_decoder_batch  # noqa: F401
+        from paddlespeech.s2t.decoders.ctcdecoder.swig_wrapper import ctc_greedy_decoder  # noqa: F401
+        from paddlespeech.s2t.decoders.ctcdecoder.swig_wrapper import Scorer  # noqa: F401
     except Exception as e:
         logger.info("paddlespeech_ctcdecoders not installed!")