use md5 for component id generation (#127)

Author: joshuadavidthomas

CHANGELOG.md

@@ -18,6 +18,10 @@ and this project attempts to adhere to [Semantic Versioning](https://semver.org/
 
 ## [Unreleased]
 
+### Changed
+
+- **Internal**: Changed component ID generation to use MD5 hash of name, path, and normalized source instead of Python's built-in hash function. This provides more consistent IDs across different Python processes.
+
 ## [0.11.0]
 
 ### Added

src/django_bird/components.py

@@ -2,6 +2,7 @@
 
 from dataclasses import dataclass
 from dataclasses import field
+from hashlib import md5
 from pathlib import Path
 from typing import Any
 
@@ -37,14 +38,20 @@ def render(self, context: dict[str, Any]):
 
     @property
     def id(self):
-        whitespace_normalized_source = "".join(self.source.split())
-        hashed = hash((self.name, whitespace_normalized_source))
-        return f"{hashed & 0xFFFFFFF:07x}"
+        normalized_source = "".join(self.source.split())
+        hashed = md5(
+            f"{self.name}:{self.path}:{normalized_source}".encode()
+        ).hexdigest()
+        return hashed[:7]
 
     @property
     def nodelist(self):
         return self.template.template.nodelist
 
+    @property
+    def path(self):
+        return self.template.template.origin.name
+
     @property
     def source(self):
         return self.template.template.source