如何解决Google Cloud Translate的translate()函数‘意外关键字参数format’报错

Hey there! Let's break down your two problems and fix them step by step:

Problem 1: Escaped Apostrophe in Translation Result #

When translating "this is me" to French, you get c'est moi instead of c'est moi because the Google Cloud Translate API defaults to returning HTML-escaped text (this is a safe default for web contexts, but not what you want for plain text output).

Problem 2: TypeError with format='text' #

The error pops up because the older v2 version of the Google Cloud Translate client library uses format_ (with an underscore) as the parameter name, not format. This avoids conflicts with Python's built-in format() function.

Solutions #

Solution 1: Use the Correct Parameter to Disable HTML Escaping #

Update your translate() call to use format_='text' instead of format='text'. This tells the API to return plain, unescaped text directly:

from google.cloud import translate

# Instantiates a client
translate_client = translate.Client()

# The text to translate
text = u'this is me'
# The target language
target = 'fr'

# Translates text with plain text format (note the underscore in format_)
translation = translate_client.translate(
    text, target_language=target, format_='text')

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

Running this will output c'est moi as expected—no more escaped apostrophes.

Solution 2: Manually Unescape HTML Entities (Alternative) #

If for some reason you can't use the format_ parameter, you can decode the escaped characters using Python's built-in html module:

import html
from google.cloud import translate

translate_client = translate.Client()
text = u'this is me'
target = 'fr'

translation = translate_client.translate(text, target_language=target)
# Decode HTML entities to get plain text
clean_translation = html.unescape(translation['translatedText'])

print(u'Text: {}'.format(text))
print(u'Translation: {}'.format(clean_translation))

This will also convert c'est moi back to the correct c'est moi.

Quick Note #

Based on your code (using translate.Client()), you're working with the v2 version of the Google Cloud Translate library. If you ever upgrade to the newer v3 API, the parameter naming will differ, but the above fixes work perfectly for your current setup.

内容的提问来源于stack exchange，提问作者user9477447