Python oauth2client.client.GoogleCredentials 模块，_get_implicit_credentials() 实例源码

def _get_implicit_credentials(cls):
        """Gets credentials implicitly from the environment.

        Checks environment in order of precedence:
        - Google App Engine (production and testing)
        - Environment variable GOOGLE_APPLICATION_CREDENTIALS pointing to
          a file with stored credentials information.
        - Stored "well known" file associated with `gcloud` command line tool.
        - Google Compute Engine production environment.

        Raises:
            ApplicationDefaultCredentialsError: raised when the credentials
                                                fail to be retrieved.
        """
        # Environ checks (in order).
        environ_checkers = [
            cls._implicit_credentials_from_gae,
            cls._implicit_credentials_from_files,
            cls._implicit_credentials_from_gce,
        ]

        for checker in environ_checkers:
            credentials = checker()
            if credentials is not None:
                return credentials

        # If no credentials, fail.
        raise ApplicationDefaultCredentialsError(ADC_HELP_MSG)

def get_application_default():
        """Get the Application Default Credentials for the current environment.

        Raises:
            ApplicationDefaultCredentialsError: raised when the credentials
                                                fail to be retrieved.
        """
        return GoogleCredentials._get_implicit_credentials()

def _get_implicit_credentials(cls):
        """Gets credentials implicitly from the environment.

        Checks environment in order of precedence:
        - Environment variable GOOGLE_APPLICATION_CREDENTIALS pointing to
          a file with stored credentials information.
        - Stored "well known" file associated with `gcloud` command line tool.
        - Google App Engine (production and testing)
        - Google Compute Engine production environment.

        Raises:
            ApplicationDefaultCredentialsError: raised when the credentials
                                                fail to be retrieved.
        """
        # Environ checks (in order).
        environ_checkers = [
            cls._implicit_credentials_from_files,
            cls._implicit_credentials_from_gae,
            cls._implicit_credentials_from_gce,
        ]

        for checker in environ_checkers:
            credentials = checker()
            if credentials is not None:
                return credentials

        # If no credentials, fail.
        raise ApplicationDefaultCredentialsError(ADC_HELP_MSG)

def get_application_default():
        """Get the Application Default Credentials for the current environment.

        Raises:
            ApplicationDefaultCredentialsError: raised when the credentials
                                                fail to be retrieved.
        """
        return GoogleCredentials._get_implicit_credentials()

def _get_implicit_credentials(cls):
    """Gets credentials implicitly from the environment.

    Checks environment in order of precedence:
    - Google App Engine (production and testing)
    - Environment variable GOOGLE_APPLICATION_CREDENTIALS pointing to
      a file with stored credentials information.
    - Stored "well known" file associated with `gcloud` command line tool.
    - Google Compute Engine production environment.

    Exceptions:
      ApplicationDefaultCredentialsError: raised when the credentials fail
          to be retrieved.
    """

    # Environ checks (in order).
    environ_checkers = [
      cls._implicit_credentials_from_gae,
      cls._implicit_credentials_from_files,
      cls._implicit_credentials_from_gce,
    ]

    for checker in environ_checkers:
      credentials = checker()
      if credentials is not None:
        return credentials

    # If no credentials, fail.
    raise ApplicationDefaultCredentialsError(ADC_HELP_MSG)

def get_application_default():
    """Get the Application Default Credentials for the current environment.

    Exceptions:
      ApplicationDefaultCredentialsError: raised when the credentials fail
                                          to be retrieved.
    """
    return GoogleCredentials._get_implicit_credentials()

def _get_implicit_credentials(cls):
    """Gets credentials implicitly from the environment.

    Checks environment in order of precedence:
    - Google App Engine (production and testing)
    - Environment variable GOOGLE_APPLICATION_CREDENTIALS pointing to
      a file with stored credentials information.
    - Stored "well known" file associated with `gcloud` command line tool.
    - Google Compute Engine production environment.

    Exceptions:
      ApplicationDefaultCredentialsError: raised when the credentials fail
          to be retrieved.
    """

    # Environ checks (in order).
    environ_checkers = [
      cls._implicit_credentials_from_gae,
      cls._implicit_credentials_from_files,
      cls._implicit_credentials_from_gce,
    ]

    for checker in environ_checkers:
      credentials = checker()
      if credentials is not None:
        return credentials

    # If no credentials, fail.
    raise ApplicationDefaultCredentialsError(ADC_HELP_MSG)

def get_application_default():
    """Get the Application Default Credentials for the current environment.

    Exceptions:
      ApplicationDefaultCredentialsError: raised when the credentials fail
                                          to be retrieved.
    """
    return GoogleCredentials._get_implicit_credentials()

def _get_implicit_credentials(cls):
        """Gets credentials implicitly from the environment.

        Checks environment in order of precedence:
        - Environment variable GOOGLE_APPLICATION_CREDENTIALS pointing to
          a file with stored credentials information.
        - Stored "well known" file associated with `gcloud` command line tool.
        - Google App Engine (production and testing)
        - Google Compute Engine production environment.

        Raises:
            ApplicationDefaultCredentialsError: raised when the credentials
                                                fail to be retrieved.
        """
        # Environ checks (in order).
        environ_checkers = [
            cls._implicit_credentials_from_files,
            cls._implicit_credentials_from_gae,
            cls._implicit_credentials_from_gce,
        ]

        for checker in environ_checkers:
            credentials = checker()
            if credentials is not None:
                return credentials

        # If no credentials, fail.
        raise ApplicationDefaultCredentialsError(ADC_HELP_MSG)

def get_application_default():
        """Get the Application Default Credentials for the current environment.

        Raises:
            ApplicationDefaultCredentialsError: raised when the credentials
                                                fail to be retrieved.
        """
        return GoogleCredentials._get_implicit_credentials()

def _get_implicit_credentials(cls):
        """Gets credentials implicitly from the environment.

        Checks environment in order of precedence:
        - Google App Engine (production and testing)
        - Environment variable GOOGLE_APPLICATION_CREDENTIALS pointing to
          a file with stored credentials information.
        - Stored "well known" file associated with `gcloud` command line tool.
        - Google Compute Engine production environment.

        Raises:
            ApplicationDefaultCredentialsError: raised when the credentials
                                                fail to be retrieved.
        """
        # Environ checks (in order).
        environ_checkers = [
            cls._implicit_credentials_from_gae,
            cls._implicit_credentials_from_files,
            cls._implicit_credentials_from_gce,
        ]

        for checker in environ_checkers:
            credentials = checker()
            if credentials is not None:
                return credentials

        # If no credentials, fail.
        raise ApplicationDefaultCredentialsError(ADC_HELP_MSG)

def get_application_default():
        """Get the Application Default Credentials for the current environment.

        Raises:
            ApplicationDefaultCredentialsError: raised when the credentials
                                                fail to be retrieved.
        """
        return GoogleCredentials._get_implicit_credentials()

def _get_implicit_credentials(cls):
    """Gets credentials implicitly from the environment.

    Checks environment in order of precedence:
    - Google App Engine (production and testing)
    - Environment variable GOOGLE_APPLICATION_CREDENTIALS pointing to
      a file with stored credentials information.
    - Stored "well known" file associated with `gcloud` command line tool.
    - Google Compute Engine production environment.

    Exceptions:
      ApplicationDefaultCredentialsError: raised when the credentials fail
          to be retrieved.
    """

    # Environ checks (in order).
    environ_checkers = [
      cls._implicit_credentials_from_gae,
      cls._implicit_credentials_from_files,
      cls._implicit_credentials_from_gce,
    ]

    for checker in environ_checkers:
      credentials = checker()
      if credentials is not None:
        return credentials

    # If no credentials, fail.
    raise ApplicationDefaultCredentialsError(ADC_HELP_MSG)

def get_application_default():
    """Get the Application Default Credentials for the current environment.

    Exceptions:
      ApplicationDefaultCredentialsError: raised when the credentials fail
                                          to be retrieved.
    """
    return GoogleCredentials._get_implicit_credentials()

def _get_implicit_credentials(cls):
        """Gets credentials implicitly from the environment.

        Checks environment in order of precedence:
        - Google App Engine (production and testing)
        - Environment variable GOOGLE_APPLICATION_CREDENTIALS pointing to
          a file with stored credentials information.
        - Stored "well known" file associated with `gcloud` command line tool.
        - Google Compute Engine production environment.

        Raises:
            ApplicationDefaultCredentialsError: raised when the credentials
                                                fail to be retrieved.
        """
        # Environ checks (in order).
        environ_checkers = [
            cls._implicit_credentials_from_gae,
            cls._implicit_credentials_from_files,
            cls._implicit_credentials_from_gce,
        ]

        for checker in environ_checkers:
            credentials = checker()
            if credentials is not None:
                return credentials

        # If no credentials, fail.
        raise ApplicationDefaultCredentialsError(ADC_HELP_MSG)

def get_application_default():
        """Get the Application Default Credentials for the current environment.

        Raises:
            ApplicationDefaultCredentialsError: raised when the credentials
                                                fail to be retrieved.
        """
        return GoogleCredentials._get_implicit_credentials()

def _get_implicit_credentials(cls):
        """Gets credentials implicitly from the environment.

        Checks environment in order of precedence:
        - Google App Engine (production and testing)
        - Environment variable GOOGLE_APPLICATION_CREDENTIALS pointing to
          a file with stored credentials information.
        - Stored "well known" file associated with `gcloud` command line tool.
        - Google Compute Engine production environment.

        Raises:
            ApplicationDefaultCredentialsError: raised when the credentials
                                                fail to be retrieved.
        """
        # Environ checks (in order).
        environ_checkers = [
            cls._implicit_credentials_from_gae,
            cls._implicit_credentials_from_files,
            cls._implicit_credentials_from_gce,
        ]

        for checker in environ_checkers:
            credentials = checker()
            if credentials is not None:
                return credentials

        # If no credentials, fail.
        raise ApplicationDefaultCredentialsError(ADC_HELP_MSG)

def get_application_default():
        """Get the Application Default Credentials for the current environment.

        Raises:
            ApplicationDefaultCredentialsError: raised when the credentials
                                                fail to be retrieved.
        """
        return GoogleCredentials._get_implicit_credentials()

def _get_implicit_credentials(cls):
        """Gets credentials implicitly from the environment.

        Checks environment in order of precedence:
        - Google App Engine (production and testing)
        - Environment variable GOOGLE_APPLICATION_CREDENTIALS pointing to
          a file with stored credentials information.
        - Stored "well known" file associated with `gcloud` command line tool.
        - Google Compute Engine production environment.

        Raises:
            ApplicationDefaultCredentialsError: raised when the credentials
                                                fail to be retrieved.
        """
        # Environ checks (in order).
        environ_checkers = [
            cls._implicit_credentials_from_gae,
            cls._implicit_credentials_from_files,
            cls._implicit_credentials_from_gce,
        ]

        for checker in environ_checkers:
            credentials = checker()
            if credentials is not None:
                return credentials

        # If no credentials, fail.
        raise ApplicationDefaultCredentialsError(ADC_HELP_MSG)

def get_application_default():
        """Get the Application Default Credentials for the current environment.

        Raises:
            ApplicationDefaultCredentialsError: raised when the credentials
                                                fail to be retrieved.
        """
        return GoogleCredentials._get_implicit_credentials()

def _get_implicit_credentials(cls):
        """Gets credentials implicitly from the environment.

        Checks environment in order of precedence:
        - Google App Engine (production and testing)
        - Environment variable GOOGLE_APPLICATION_CREDENTIALS pointing to
          a file with stored credentials information.
        - Stored "well known" file associated with `gcloud` command line tool.
        - Google Compute Engine production environment.

        Raises:
            ApplicationDefaultCredentialsError: raised when the credentials
                                                fail to be retrieved.
        """
        # Environ checks (in order).
        environ_checkers = [
            cls._implicit_credentials_from_gae,
            cls._implicit_credentials_from_files,
            cls._implicit_credentials_from_gce,
        ]

        for checker in environ_checkers:
            credentials = checker()
            if credentials is not None:
                return credentials

        # If no credentials, fail.
        raise ApplicationDefaultCredentialsError(ADC_HELP_MSG)

def get_application_default():
        """Get the Application Default Credentials for the current environment.

        Raises:
            ApplicationDefaultCredentialsError: raised when the credentials
                                                fail to be retrieved.
        """
        return GoogleCredentials._get_implicit_credentials()

def _get_implicit_credentials(cls):
    """Gets credentials implicitly from the environment.

    Checks environment in order of precedence:
    - Google App Engine (production and testing)
    - Environment variable GOOGLE_APPLICATION_CREDENTIALS pointing to
      a file with stored credentials information.
    - Stored "well known" file associated with `gcloud` command line tool.
    - Google Compute Engine production environment.

    Exceptions:
      ApplicationDefaultCredentialsError: raised when the credentials fail
          to be retrieved.
    """

    # Environ checks (in order).
    environ_checkers = [
      cls._implicit_credentials_from_gae,
      cls._implicit_credentials_from_files,
      cls._implicit_credentials_from_gce,
    ]

    for checker in environ_checkers:
      credentials = checker()
      if credentials is not None:
        return credentials

    # If no credentials, fail.
    raise ApplicationDefaultCredentialsError(ADC_HELP_MSG)

def get_application_default():
    """Get the Application Default Credentials for the current environment.

    Exceptions:
      ApplicationDefaultCredentialsError: raised when the credentials fail
                                          to be retrieved.
    """
    return GoogleCredentials._get_implicit_credentials()

def _get_implicit_credentials(cls):
        """Gets credentials implicitly from the environment.

        Checks environment in order of precedence:
        - Environment variable GOOGLE_APPLICATION_CREDENTIALS pointing to
          a file with stored credentials information.
        - Stored "well known" file associated with `gcloud` command line tool.
        - Google App Engine (production and testing)
        - Google Compute Engine production environment.

        Raises:
            ApplicationDefaultCredentialsError: raised when the credentials
                                                fail to be retrieved.
        """
        # Environ checks (in order).
        environ_checkers = [
            cls._implicit_credentials_from_files,
            cls._implicit_credentials_from_gae,
            cls._implicit_credentials_from_gce,
        ]

        for checker in environ_checkers:
            credentials = checker()
            if credentials is not None:
                return credentials

        # If no credentials, fail.
        raise ApplicationDefaultCredentialsError(ADC_HELP_MSG)

def get_application_default():
        """Get the Application Default Credentials for the current environment.

        Raises:
            ApplicationDefaultCredentialsError: raised when the credentials
                                                fail to be retrieved.
        """
        return GoogleCredentials._get_implicit_credentials()

def _get_implicit_credentials(cls):
        """Gets credentials implicitly from the environment.

        Checks environment in order of precedence:
        - Environment variable GOOGLE_APPLICATION_CREDENTIALS pointing to
          a file with stored credentials information.
        - Stored "well known" file associated with `gcloud` command line tool.
        - Google App Engine (production and testing)
        - Google Compute Engine production environment.

        Raises:
            ApplicationDefaultCredentialsError: raised when the credentials
                                                fail to be retrieved.
        """
        # Environ checks (in order).
        environ_checkers = [
            cls._implicit_credentials_from_files,
            cls._implicit_credentials_from_gae,
            cls._implicit_credentials_from_gce,
        ]

        for checker in environ_checkers:
            credentials = checker()
            if credentials is not None:
                return credentials

        # If no credentials, fail.
        raise ApplicationDefaultCredentialsError(ADC_HELP_MSG)

def get_application_default():
        """Get the Application Default Credentials for the current environment.

        Raises:
            ApplicationDefaultCredentialsError: raised when the credentials
                                                fail to be retrieved.
        """
        return GoogleCredentials._get_implicit_credentials()

def _get_implicit_credentials(cls):
        """Gets credentials implicitly from the environment.

        Checks environment in order of precedence:
        - Google App Engine (production and testing)
        - Environment variable GOOGLE_APPLICATION_CREDENTIALS pointing to
          a file with stored credentials information.
        - Stored "well known" file associated with `gcloud` command line tool.
        - Google Compute Engine production environment.

        Raises:
            ApplicationDefaultCredentialsError: raised when the credentials
                                                fail to be retrieved.
        """
        # Environ checks (in order).
        environ_checkers = [
            cls._implicit_credentials_from_gae,
            cls._implicit_credentials_from_files,
            cls._implicit_credentials_from_gce,
        ]

        for checker in environ_checkers:
            credentials = checker()
            if credentials is not None:
                return credentials

        # If no credentials, fail.
        raise ApplicationDefaultCredentialsError(ADC_HELP_MSG)

def get_application_default():
        """Get the Application Default Credentials for the current environment.

        Raises:
            ApplicationDefaultCredentialsError: raised when the credentials
                                                fail to be retrieved.
        """
        return GoogleCredentials._get_implicit_credentials()

def _get_implicit_credentials(cls):
    """Gets credentials implicitly from the environment.

    Checks environment in order of precedence:
    - Google App Engine (production and testing)
    - Environment variable GOOGLE_APPLICATION_CREDENTIALS pointing to
      a file with stored credentials information.
    - Stored "well known" file associated with `gcloud` command line tool.
    - Google Compute Engine production environment.

    Exceptions:
      ApplicationDefaultCredentialsError: raised when the credentials fail
          to be retrieved.
    """

    # Environ checks (in order).
    environ_checkers = [
      cls._implicit_credentials_from_gae,
      cls._implicit_credentials_from_files,
      cls._implicit_credentials_from_gce,
    ]

    for checker in environ_checkers:
      credentials = checker()
      if credentials is not None:
        return credentials

    # If no credentials, fail.
    raise ApplicationDefaultCredentialsError(ADC_HELP_MSG)

def get_application_default():
    """Get the Application Default Credentials for the current environment.

    Exceptions:
      ApplicationDefaultCredentialsError: raised when the credentials fail
                                          to be retrieved.
    """
    return GoogleCredentials._get_implicit_credentials()

def _get_implicit_credentials(cls):
        """Gets credentials implicitly from the environment.

        Checks environment in order of precedence:
        - Google App Engine (production and testing)
        - Environment variable GOOGLE_APPLICATION_CREDENTIALS pointing to
          a file with stored credentials information.
        - Stored "well known" file associated with `gcloud` command line tool.
        - Google Compute Engine production environment.

        Raises:
            ApplicationDefaultCredentialsError: raised when the credentials
                                                fail to be retrieved.
        """
        # Environ checks (in order).
        environ_checkers = [
            cls._implicit_credentials_from_gae,
            cls._implicit_credentials_from_files,
            cls._implicit_credentials_from_gce,
        ]

        for checker in environ_checkers:
            credentials = checker()
            if credentials is not None:
                return credentials

        # If no credentials, fail.
        raise ApplicationDefaultCredentialsError(ADC_HELP_MSG)

def get_application_default():
        """Get the Application Default Credentials for the current environment.

        Raises:
            ApplicationDefaultCredentialsError: raised when the credentials
                                                fail to be retrieved.
        """
        return GoogleCredentials._get_implicit_credentials()