clean_tags: Python exercise

Your mission

Implement clean_tags, which returns the tags of tags trimmed and in lowercase, without the ones that end up empty.

clean_tags([" Garden ", "DIY", "\tSlow Cooking\n"]): ['garden', 'diy', 'slow cooking']
clean_tags(["Board Games", " ", "", "board games", "\n"]): ['board games', 'board games']
clean_tags([]): []

tags is a list of strings, possibly empty. A tag may be empty and holds only ASCII characters; its only whitespace characters are spaces, tabs (\t) and newlines (\n).
Each tag of the result is a tag of tags without its leading and trailing whitespace, with every letter in lowercase. Whitespace inside a tag is kept as it is.
A tag that is empty once cleaned is left out of the result.
The result keeps the order of tags, duplicates included.
Return a new list and do not modify tags.

Implement clean_tags, which returns the tags of tags trimmed and in lowercase, without the ones that end up empty.

clean_tags([" Garden ", "DIY", "\tSlow Cooking\n"]): ['garden', 'diy', 'slow cooking']
clean_tags(["Board Games", " ", "", "board games", "\n"]): ['board games', 'board games']
clean_tags([]): []

tags is a list of strings, possibly empty. A tag may be empty and holds only ASCII characters; its only whitespace characters are spaces, tabs (\t) and newlines (\n).
Each tag of the result is a tag of tags without its leading and trailing whitespace, with every letter in lowercase. Whitespace inside a tag is kept as it is.
A tag that is empty once cleaned is left out of the result.
The result keeps the order of tags, duplicates included.
Return a new list and do not modify tags.

Implement clean_tags, which returns the tags of tags trimmed and in lowercase, without the ones that end up empty.

clean_tags([" Garden ", "DIY", "\tSlow Cooking\n"]): ['garden', 'diy', 'slow cooking']
clean_tags(["Board Games", " ", "", "board games", "\n"]): ['board games', 'board games']
clean_tags([]): []

tags is a list of strings, possibly empty. A tag may be empty and holds only ASCII characters; its only whitespace characters are spaces, tabs (\t) and newlines (\n).
Each tag of the result is a tag of tags without its leading and trailing whitespace, with every letter in lowercase. Whitespace inside a tag is kept as it is.
A tag that is empty once cleaned is left out of the result.
The result keeps the order of tags, duplicates included.
Return a new list and do not modify tags.

Implement clean_tags, which returns the tags of tags trimmed and in lowercase, without the ones that end up empty.

clean_tags([" Garden ", "DIY", "\tSlow Cooking\n"]): ['garden', 'diy', 'slow cooking']
clean_tags(["Board Games", " ", "", "board games", "\n"]): ['board games', 'board games']
clean_tags([]): []

tags is a list of strings, possibly empty. A tag may be empty and holds only ASCII characters; its only whitespace characters are spaces, tabs (\t) and newlines (\n).
Each tag of the result is a tag of tags without its leading and trailing whitespace, with every letter in lowercase. Whitespace inside a tag is kept as it is.
A tag that is empty once cleaned is left out of the result.
The result keeps the order of tags, duplicates included.
Return a new list and do not modify tags.