The Problem:
A user is trying to fine-tune a language model with OpenAI’s createFile() function using a JSONL file for training data. However, the function is throwing an error indicating that the file does not meet the required format. The file is expected to be in JSONL format, where each line is a valid JSON dictionary. The user is unable to identify the exact error in the file.
The Solutions:
Solution 1: Correct JSONL Formatting
The error stems from the file not conforming to the JSONL format. JSONL (JSON Line-Delimited) requires each JSON object to be separated by a new line character. In your case, the JSON objects are not properly separated.
To resolve this issue, ensure that each JSON object is on a separate line, as shown below:
{ "prompt": "aa", "completion": "bb" }
{ "prompt": "cc", "completion": "dd" }
Once your file is formatted correctly, the createFile function should execute successfully.
Solution 2: UTF-8 Byte Order Mark
One possible reason for the error is that your file might be encoded as UTF-8 with the Byte Order Mark (BOM) included. The BOM is a special character that indicates the byte order of the file, and it can cause problems with some parsers.
To fix this, you can open the file in a text editor and check the encoding. If the encoding is UTF-8 with BOM, you can save the file as UTF-8 without BOM.
Here is an example of how to remove the BOM from a file using Python:
“`python
with open(“mydata.jsonl”, “rb”) as f:
data = f.read()
if data.startswith(b”\xef\xbb\xbf”):
data = data[3:]
with open(“mydata.jsonl”, “wb”) as f:
f.write(data)
“`
Q&A
Where was exactly the error in the file?
The error was in the file format, the file should be in JSONL format.
What is JSONL format?
JSONL format is a type of JSON format where each JSON object is separated by a newline character.