And support for windows

README.md

@@ -47,7 +47,7 @@ This is needed to build the link to broken notebook.
 
 ## Notes
 
-- The service must be run as `root` because report processes are executed through `su <user> --login` command to
+- On Unix platforms, the service must be run as `root` because report processes are executed through `su <user> --login` command to
 impersonate the authenticated user and setting the environment variables afresh.
 
 ## Development

papermill_report/handlers.py

@@ -2,7 +2,6 @@
 import json
 import logging
 import os
-import pwd
 import re
 import stat
 import sys
@@ -24,6 +23,11 @@
 
 ANONYMOUS_USER = "anonymous_pm_report"
 
+try:
+    import pwd
+except ImportError:  # None Unix
+    pwd = None
+
 if os.environ.get("JUPYTERHUB_API_TOKEN"):
     from jupyterhub.services.auth import HubOAuthenticated
 else:
@@ -323,7 +327,7 @@ def _save_broken_report(self, notebook_path: Path, username: str) -> Path:
         Returns:
             The copied broken report path
         """
-        local_user = pwd.getpwnam(username) if username != ANONYMOUS_USER else None
+        local_user = pwd.getpwnam(username) if pwd is not None and username != ANONYMOUS_USER else None
         prefix = datetime.strftime(datetime.now(), "%Y-%m-%d") + "_broken_"
         broken_notebook = Path(self.broken_path) / (prefix + notebook_path.name)
         if not broken_notebook.parent.exists():
@@ -439,7 +443,7 @@ async def get(self, template_path: str):
                 str(output_nb),
             ]
             try:
-                if username != ANONYMOUS_USER:
+                if pwd is not None and username != ANONYMOUS_USER:
                     # Generate the report impersonating the authenticated user
                     await _execute_command(
                         ["su", username, "-l", "-c", " ".join(command)], cwd=tmp_folder
@@ -466,7 +470,7 @@ async def get(self, template_path: str):
                     str(output_nb),
                 ]
 
-                if username != ANONYMOUS_USER:
+                if pwd is not None and username != ANONYMOUS_USER:
                     await _execute_command(
                         ["su", username, "-l", "-c", " ".join(command)], cwd=tmp_folder
                     )