AM-Downloader | A modern download manager for Windows | Download Utils library
kandi X-RAY | AM-Downloader Summary
kandi X-RAY | AM-Downloader Summary
A modern download manager for Windows.
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Top functions reviewed by kandi - BETA
Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of AM-Downloader
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QUESTION
Working with loguru in order to write a list back to the configuration file, and received the dreaded unsupported operand type(s) for +: 'NoneType' and 'list'
error. I know the error came from attempting to combine a literal and a list. I attempted to break down the line by using a variable to represent the literal, and this only generated the same error.
ANSWER
Answered 2021-May-11 at 06:39The reason for failure is config["ids_to_retry"] = None
and you are trying to extend a Nonetype to a list. You can use something like
config["ids_to_retry"] = list(set(config["ids_to_retry"] + FAILED_IDS)) if config["ids_to_retry"] else FAILED_IDS
So if config["ids_to_retry"]
is None
it would take config["ids_to_retry"] = FAILED_IDS
, Without trying to extending it.
Assumption made that FAILED_IDS
is a list if not you can type cast it to a list.
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