Fix problem with missing __module__ in functions

Author: lukasmasuch

src/lazydocs/generation.py

@@ -445,7 +445,9 @@ def func2md(self, func: Callable, clsname: str = "", depth: int = 3) -> str:
 
         section = "#" * depth
         funcname = func.__name__
-        modname = func.__module__
+        modname = None
+        if hasattr(func, "__module__"):
+            modname = func.__module__
 
         escfuncname = (
             "%s" % funcname if funcname.startswith("_") else funcname
@@ -713,7 +715,11 @@ def overview2md(self) -> str:
             filter(lambda d: d["type"] == "module", self.generated_objects)
         ):
             full_name = obj["full_name"]
-            link = "./" + obj["module"] + ".md#" + obj["anchor_tag"]
+            if "module" in obj:
+                link = "./" + obj["module"] + ".md#" + obj["anchor_tag"]
+            else:
+                link = "#unknown"
+
             description = obj["description"]
             entries_md += f"\n- [`{full_name}`]({link})"
             if description: