IndexError: list index out of range (while using Googletrans API)

Question

I'm trying to translate a yml file (which exists over 4000 lines) to dutch using the Googletrans API.

This is my python code:

from googletrans import Translator
import re

translator = Translator()

with open("Results2/ValuesfileNotTranslated.yml") as a_file: # Not translated File 
  for object in a_file:
    stripped_object = object.rstrip()
    found = False
    file = open("Results2/ValuesfileTranslated.yml", "a") #Translated file
    if not stripped_object.strip():
      file.writelines("\n")
    elif "# Do not translate" in stripped_object: #Skips lines with "# Do Not Translates"
      counter_DoNotTranslate += 1
      file.writelines(stripped_object + "\n")
    else: #Translates english to dutch
      counter_Translate += 1
      results = translator.translate(stripped_object, src='en', dest='nl')
      translatedText = results.text
      file.writelines(re.split('|=', translatedText, maxsplit=1)[-1].strip() + "\n" )

But when I try to run the code it works until line 276.

This is the YAML file I want to translate.

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"This new functionality is not yet optimized for all browsers. Please create a helpdesk ticket to inform us about errors, providing details including the browser and browser version you are using. As a workaround, we ask you to try another browser to continue (Chrome or Firefox)"

Please enable Javascript in your browser!! # This is line 276
http://www.enable-javascript.com/
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After line 276 I get this error:

Traceback (most recent call last):
  File "/Users/AndreB/Library/Mobile Documents/com~apple~CloudDocs/Work/Freelance/ProjectYML/Programma/python/vertaling.py", line 29, in <module>
    results = translator.translate(stripped_object, src='en', dest='nl') #Choose a source and a destination
  File "/Users/AndreB/Library/Python/3.9/lib/python/site-packages/googletrans/client.py", line 222, in translate
    translated_parts = list(map(lambda part: TranslatedPart(part[0], part[1] if len(part) >= 2 else []), parsed[1][0][0][5]))
IndexError: list index out of range

I can't figure out what the problem is with my code.

Does anyone have an idea how I can fix this?

Answer 1

I know this is an old post but I just had this problem and found a solution. The issue was that Googletrans didn't know what to do with empty lines. I was translating by line so I just added:

if line != "\n":

before

translator.translate(line) 

That's it - it worked! You may need to modify if you're not translating by line, but that's the idea. Good luck.