ValueError: anchor not supported for multiline text

[dsanr]

Description

If there is a multiline text as a key in the dictionary, wordcloud.WordCloud().generate_from_frequencies(my_dict) is producing an error.
Seems this is due to the anchor value of wordcloud is not supported in PIL

Steps/Code to Reproduce

import wordcloud
This will work: wc = wordcloud.WordCloud().generate_from_frequencies({'a': 3, 'b': 1, 'c': 8})
This produces an error: wc = wordcloud.WordCloud().generate_from_frequencies({'a\n': 3, 'b': 1, 'c': 8})

Versions

Linux-6.2.0-36-generic-x86_64-with-glibc2.35
Python 3.11.3 (main, Apr 19 2023, 23:54:32) [GCC 11.2.0]
NumPy 1.23.5
matplotlib 3.8.0
wordcoud 1.9.2
pillow 10.1.0

[cocoa1231]

+1

Encountering the same issue with the values of the frequencies in a dictionary are floating point numbers

[amueller]

What is the expected result with newlines? I would imagine tokens not to include newlines. generate_from_frequencies is meant as a more low-level interface with already parsed tokens. We could provide a more instructive error message but I would say that for that interface, removing newlines is in the users responsibility.

@cocoa1231 can you provide a script to reproduce?

[dsanr]

@amueller The expected result with the new lines can be printing the word as it is including the line separation. If adding that functionality is more complex, we can provide a more constructive message that asks the user to remove newline characters.