Update python version number for development

benjeffery · mergify[bot] · commit 7abb51e24f1f · 2023-01-26T14:53:29.000Z
diff --git a/python/tskit/_version.py b/python/tskit/_version.py
@@ -1,4 +1,4 @@
 # Definitive location for the version number.
 # During development, should be x.y.z.devN
 # For beta should be x.y.zbN
-tskit_version = "0.5.4"
+tskit_version = "0.5.5.dev0"
