ICU based string comparison using various collation strengths

ICUStingComparison.py

from icu import Locale, Collator as ICUCollator
import locale

collator = ICUCollator.createInstance(Locale("ml_IN"))
word1="അവൻ"
word2="അവ‍ന്\u200d" # "അവന്"
collator.setStrength(ICUCollator.PRIMARY);
print("[ICU] Are they primary equal? ", collator.compare(word1, word2))
collator.setStrength(ICUCollator.SECONDARY);
print("[ICU] Are they secondary equal? ", collator.compare(word1, word2))
collator.setStrength(ICUCollator.TERTIARY);
print("[ICU] Are they tertiary equal? ", collator.compare(word1, word2))
locale.setlocale(locale.LC_ALL, "ml_IN.UTF-8")
print("[GLIBC] Are they equal? ", locale.strcoll(word1, word2))

Sample output

[ICU] Are they primary equal?  0
[ICU] Are they secondary equal?  0
[ICU] Are they tertiary equal?  1
[GLIBC] Are they equal?  955

Basically this says that the word with atomic chillu and zwj based chillu are different only at tertiary level.