Migrate to requests library

requirements.txt

@@ -1 +1,2 @@
-scipy~=1.7.3
+scipy~=1.7.3
+requests~=2.27.1

speech.py

@@ -1,6 +1,4 @@
-import json
-from urllib.request import Request, urlopen
-
+import requests
 from scipy.io import wavfile
 
 
@@ -27,13 +25,14 @@ class Speech:
     @staticmethod
     def __stt(wav_file, server):
         print(f'Connecting to \'{server}\'...')
-        request = Request(url=f'{server}/stt',
-                          data=Speech.__load_wav(wav_file),
-                          headers={'Content-Type': 'audio/wav'})
-        result = json.loads(urlopen(request).read().decode('utf-8'))
+        response = requests.post(url=f'{server}/stt',
+                                 data=Speech.__load_wav(wav_file),
+                                 headers={'Content-Type': 'audio/wav'})
+        result = response.json()
+
+        if response.status_code != requests.codes.ok:
+            response.raise_for_status()
 
-        if not ('code' in result and 'text' in result):
-            raise RuntimeError(f'Wrong reply from server: {result}')
         return result['text'] if not result['code'] else f'Server error: {result}'
 
     def run(self, wav_file: str, server: str) -> str: