Question: It is not possible to import nltk, and the solution given by the output required me to import nltk: >>>import nltk Traceback (most recent call last): File "D:\project\Lib\site-packages\nltk\corpus\util.py", line 84, in __load root = nltk.data.find(f"{self.subdir}/{zip_name}") ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "D:\project\Lib\site-packages\nltk\data.py", line 579, in find raise LookupError(resource_not_found LookupError: ********************************************************************** Resource wordnet not found. Please use the NLTK Downloader to obtain the resource: >>> import nltk >>> nltk.download('wordnet') For more information see: https://www.nltk.org/data.html Attempted to load corpora/wordnet.zip/wordnet/ Searched in: - 'C:\\Users\\me/nltk_data' - 'D:\\project\\nltk_data' - 'D:\\project\\share\\nltk_data' - 'D:\\project\\lib\\nltk_data' - 'C:\\Users\\me\\AppData\\Roaming\\nltk_data' - 'C:\\nltk_data' - 'D:\\nltk_data' - 'E:\\nltk_data' **********************************************************************  Basically - I cannot import nltk because wordnet is missing, but in order to download wordnet, I have to import nltk which I cannot, because wordnet is missing. Noteworthy is, that it throws this exception twice, but with a different traceback - During handling of the above exception, another exception occurred: Traceback (most recent call last): File "<stdin>", line 1, in <module> File "D:\project\Lib\site-packages\nltk\__init__.py", line 156, in <module> from nltk.stem import * File "D:\project\Lib\site-packages\nltk\stem\__init__.py", line 34, in <module> from nltk.stem.wordnet import WordNetLemmatizer File "D:\project\Lib\site-packages\nltk\stem\wordnet.py", line 13, in <module> class WordNetLemmatizer: File "D:project\Lib\site-packages\nltk\stem\wordnet.py", line 48, in WordNetLemmatizer morphy = wn.morphy ^^^^^^^^^ File "D:\project\Lib\site-packages\nltk\corpus\util.py", line 120, in __getattr__ self.__load() File "D:\project\Lib\site-packages\nltk\corpus\util.py", line 86, in __load raise e File "D:\project\Lib\site-packages\nltk\corpus\util.py", line 81, in __load root = nltk.data.find(f"{self.subdir}/{self.__name}") ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "D:\project\Lib\site-packages\nltk\data.py", line 579, in find raise LookupError(resource_not_found) LookupError: ********************************************************************** Resource wordnet not found. Please use the NLTK Downloader to obtain the resource: >>> import nltk >>> nltk.download('wordnet') For more information see: https://www.nltk.org/data.html Attempted to load corpora/wordnet Searched in: - 'C:\\Users\\me/nltk_data' - 'D:\\project\\nltk_data' - 'D:\\project\\share\\nltk_data' - 'D:\\project\\lib\\nltk_data' - 'C:\\Users\\me\\AppData\\Roaming\\nltk_data' - 'C:\\nltk_data' - 'D:\\nltk_data' - 'E:\\nltk_data' **********************************************************************  What is the suggested solution in this case?

Answer: This bug was introduced in nltk 3.9.0 (released on 18 August 2024) and is a known issue. It was fixed in 3.9.1: python3 -m pip install nltk~=3.9.1  The most recent full release prior to 3.9.x was nltk 3.8.1. However, be aware that this version is vulnerable to remote code execution. python3 -m pip install nltk==3.8.1