google.auth.exceptions.DefaultCredentialsError：

Question

因此，我完全按照Google翻译API的文档遵循相同的步骤，其中提供了以下代码。

# Imports the Google Cloud client library

from google.cloud import translate

# Instantiates a client
translate_client = translate.Client()

# The text to translate
text = u'Hello, world!'
# The target language
target = 'ru'

# Translates some text into Russian
translation = translate_client.translate(
    text,
    target_language=target)

print(u'Text: {}'.format(text))
print(u'Translation: {}'.format(translation['translatedText']))

现在，当我编译它时，我返回此错误：

追溯（最近一次通话最近）：文件“ test.py”，第5行，位于translate_client = translate.Client（）文件“ C：\ ProgramData \ Anaconda3 \ lib \ site-packages \ google \ cloud \ translate_v2 \ client.py ”，第65行，位于init super（Client，self）中。初始化（凭据=凭据，_http = _http）文件“ C：\ ProgramData \ Anaconda3 \ lib \ site-packages \ google \ cloud \ client.py”，第129行，初始化 凭证_ = google.auth.default（）文件“ C：\ ProgramData \ Anaconda3 \ lib \ site-packages \ google \ auth_default.py”，第294行，默认凭证中，project_id = checker（）文件“ C：\ _get_explicit_environ_credentials os.environ [environment_vars.CREDENTIALS]）中的ProgramData \ Anaconda3 \ lib \ site-packages \ google \ auth_default.py“，行165）文件“ C：\ ProgramData \ Anaconda3 \ lib \ site-packages \ google \ auth_default。 py”，第89行，在_load_credentials_from_file'未找到文件{}。'。format（filename））google.auth.exceptions.DefaultCredentialsError：文件D：\ Summer Projects \ Translate \ social media analysis-2a59d94ba22d.json未找到。

D：\ Summer Projects \ Translate \ social media analysis-2a59d94ba22d.json是我放置Google云端为此项目提供的密钥的路径。我该如何解决。

Answer 1

您需要为设置环境变量 GOOGLE_APPLICATION_CREDENTIALS

您可以通过添加以下行来在代码中添加它：

credential_path = "D:\Summer Projects\Translate\social media analysis-2a59d94ba22d.json"
os.environ['GOOGLE_APPLICATION_CREDENTIALS'] = credential_path

完整的解决方案：

# Imports the Google Cloud client library

import os    
from google.cloud import translate

credential_path = "D:\Summer Projects\Translate\social media analysis-2a59d94ba22d.json"
os.environ['GOOGLE_APPLICATION_CREDENTIALS'] = credential_path

# Instantiates a client
translate_client = translate.Client()

# The text to translate
text = u'Hello, world!'
# The target language
target = 'ru'

# Translates some text into Russian
translation = translate_client.translate(
    text,
    target_language=target)

print(u'Text: {}'.format(text))
print(u'Translation: {}'.format(translation['translatedText']))