Update Python version in GitHub Actions and enhance translation tests with from_lang parameter

- Changed the Python version matrix in GitHub Actions from 3.7 to 3.9.
- Updated translation tests to include the from_lang parameter for better accuracy in translations across multiple languages.

Author: terryyin

.github/workflows/main.yml

@@ -16,7 +16,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ['3.7', '3.10']
+        python-version: ['3.9', '3.10']
         architecture: ['x64']
 
     steps:

tests/test_translate.py

@@ -35,50 +35,50 @@ def test_tranlate_with_provider_extra_argument():
 
 @vcr.use_cassette
 def test_tranlate_english_to_english():
-    translator = Translator(to_lang='en')
+    translator = Translator(to_lang='en', from_lang='en')
     translation = translator.translate('why')
     assert 'why' == translation
 
 
 @vcr.use_cassette
 def test_translate_english_to_chinese_traditional():
-    translator = Translator(to_lang='zh-TW')
+    translator = Translator(to_lang='zh-TW', from_lang='en')
     translation = translator.translate('hello world')
     assert u'你好，世界' == translation
 
 
 @vcr.use_cassette
 def test_translate_english_to_portuguese():
-    translator = Translator(to_lang='pt-BR')
+    translator = Translator(to_lang='pt-BR', from_lang='en')
     translation = translator.translate('hello world')
     assert u'olá mundo' == translation
 
 
 @vcr.use_cassette
 def test_translate_english_to_chinese_simplified():
-    translator = Translator(to_lang='zh-CN')
+    translator = Translator(to_lang='zh-CN', from_lang='en')
     translation = translator.translate('hello world')
     assert u'你好，世界' == translation
 
 
 @vcr.use_cassette
 def test_translate_with_quote():
-    translator = Translator(to_lang='zh')
+    translator = Translator(to_lang='zh', from_lang='en')
     translation = translator.translate("What is 'yinyang'?")
-    assert u'什么是“阴阳”？' == translation
+    assert u'什么是\u201c阴阳\u201d？' == translation
 
 
 @vcr.use_cassette
 def test_translate_with_multiple_sentences():
-    translator = Translator(to_lang='zh')
+    translator = Translator(to_lang='zh', from_lang='en')
     translation = translator.translate('yes or no')
     assert u'是或否' in translation
 
 
 @vcr.use_cassette
 def test_translate_with_HTTPError():
     import requests
-    t = Translator(to_lang='de', provider='mymemory')
+    t = Translator(to_lang='de', from_lang='en', provider='mymemory')
     t.provider.base_url += '-nonsense'
     with pytest.raises(requests.HTTPError) as error:
         t.translate('hello')
@@ -88,15 +88,19 @@ def test_translate_with_HTTPError():
 @vcr.use_cassette
 def test_translate_with_status_error():
     import requests
-    t = Translator(to_lang='de', provider='mymemory', email='invalid')
+    t = Translator(to_lang='de', from_lang='en', provider='mymemory', email='invalid')
     with pytest.raises((TranslationError, requests.HTTPError)) as error:
         t.translate('hello again!')
     assert 'INVALID EMAIL' in str(error).upper()
 
 
-@mock.patch('requests.get')
-def test_tranlate_taking_secondary_match(mock_requests, main_translation_not_found):
-    mock_requests.return_value.json.return_value = main_translation_not_found
-    translator = Translator(to_lang='zh-TW')
+@mock.patch('requests.Session.get')
+def test_tranlate_taking_secondary_match(mock_get, main_translation_not_found):
+    import requests
+    mock_response = mock.Mock()
+    mock_response.raise_for_status = mock.Mock()
+    mock_response.json.return_value = main_translation_not_found
+    mock_get.return_value = mock_response
+    translator = Translator(to_lang='zh-TW', from_lang='en')
     translation = translator.translate('unknown')
-    assert '未知' == translation
+    assert translation == '未知'