Fix displaying streaming speech recognition results for Python. (#2196)

sherpa-onnx/python/sherpa_onnx/__init__.py

@@ -6,7 +6,6 @@ from _sherpa_onnx import (
     AudioTaggingModelConfig,
     CircularBuffer,
     DenoisedAudio,
-    Display,
     FastClustering,
     FastClusteringConfig,
     OfflinePunctuation,
@@ -48,6 +47,7 @@ from _sherpa_onnx import (
     write_wave,
 )
 
+from .display import Display
 from .keyword_spotter import KeywordSpotter
 from .offline_recognizer import OfflineRecognizer
 from .online_recognizer import OnlineRecognizer

sherpa-onnx/python/sherpa_onnx/display.py

@@ -0,0 +1,41 @@
+# Copyright (c)  2025  Xiaomi Corporation
+import os
+from time import gmtime, strftime
+
+
+def get_current_time():
+    return strftime("%Y-%m-%d %H:%M:%S", gmtime())
+
+
+def clear_console():
+    os.system("cls" if os.name == "nt" else "clear")
+
+
+class Display:
+    def __init__(self):
+        self.sentences = []
+        self.currentText = ""
+
+    def update_text(self, text):
+        self.currentText = text
+
+    def finalize_current_sentence(self):
+        if self.currentText.strip():
+            self.sentences.append((get_current_time(), self.currentText))
+
+        self.currentText = ""
+
+    def display(self):
+        clear_console()
+        print("=== Speech Recognition with Next-gen Kaldi ===")
+        print("Time:", get_current_time())
+        print("-" * 30)
+
+        # display history sentences
+        if self.sentences:
+            for i, (when, text) in enumerate(self.sentences):
+                print(f"[{when}] {i + 1}. {text}")
+            print("-" * 30)
+
+        if self.currentText.strip():
+            print("Recognizing:", self.currentText)