Fix requirements

requirements_dev.txt

-bump2version==1.0.1
 wheel==0.36.2
-watchdog==2.1.2
+watchdog==2.1.3
 flake8==3.9.2
 tox==3.23.1
 coverage==5.5

sziszapangma/core/wer/word.py

@@ -9,4 +9,4 @@ class Word:
 
     @classmethod
     def from_string(cls, string: str):
-        cls(str(uuid.uuid4()), string)
+        return cls(str(uuid.uuid4()), string)