Update v2 samples to explicitly use v2 library (GoogleCloudPlatform#2498)

Author: nnegrey

translate/cloud-client/quickstart.py

@@ -18,7 +18,7 @@
 def run_quickstart():
     # [START translate_quickstart]
     # Imports the Google Cloud client library
-    from google.cloud import translate
+    from google.cloud import translate_v2 as translate
 
     # Instantiates a client
     translate_client = translate.Client()

translate/cloud-client/requirements.txt

@@ -1,2 +1,2 @@
-google-cloud-translate==1.6.0
+google-cloud-translate==2.0.0
 google-cloud-storage==1.19.1

translate/cloud-client/snippets.py

@@ -23,13 +23,13 @@
 
 import argparse
 
-from google.cloud import translate
 import six
 
 
 def detect_language(text):
     # [START translate_detect_language]
     """Detects the text's language."""
+    from google.cloud import translate_v2 as translate
     translate_client = translate.Client()
 
     # Text can also be a sequence of strings, in which case this method
@@ -45,6 +45,7 @@ def detect_language(text):
 def list_languages():
     # [START translate_list_codes]
     """Lists all available languages."""
+    from google.cloud import translate_v2 as translate
     translate_client = translate.Client()
 
     results = translate_client.get_languages()
@@ -61,6 +62,7 @@ def list_languages_with_target(target):
     Target must be an ISO 639-1 language code.
     See https://g.co/cloud/translate/v2/translate-reference#supported_languages
     """
+    from google.cloud import translate_v2 as translate
     translate_client = translate.Client()
 
     results = translate_client.get_languages(target_language=target)
@@ -70,7 +72,7 @@ def list_languages_with_target(target):
     # [END translate_list_language_names]
 
 
-def translate_text_with_model(target, text, model=translate.NMT):
+def translate_text_with_model(target, text, model='nmt'):
     # [START translate_text_with_model]
     """Translates text into the target language.
 
@@ -79,6 +81,7 @@ def translate_text_with_model(target, text, model=translate.NMT):
     Target must be an ISO 639-1 language code.
     See https://g.co/cloud/translate/v2/translate-reference#supported_languages
     """
+    from google.cloud import translate_v2 as translate
     translate_client = translate.Client()
 
     if isinstance(text, six.binary_type):
@@ -103,6 +106,7 @@ def translate_text(target, text):
     Target must be an ISO 639-1 language code.
     See https://g.co/cloud/translate/v2/translate-reference#supported_languages
     """
+    from google.cloud import translate_v2 as translate
     translate_client = translate.Client()
 
     if isinstance(text, six.binary_type):