Audit uses of print (#261)

Author: blink1073

jupyterlab_server/handlers.py

@@ -3,6 +3,7 @@
 # Copyright (c) Jupyter Development Team.
 # Distributed under the terms of the Modified BSD License.
 import os
+import warnings
 from functools import lru_cache
 from urllib.parse import urlparse
 
@@ -255,7 +256,7 @@ def add_handlers(handlers, extension_app):
     allowed_extensions_uris = settings_config.get("allowed_extensions_uris", "")
 
     if (blocked_extensions_uris) and (allowed_extensions_uris):
-        print(
+        warnings.warn(
             "Simultaneous blocked_extensions_uris and allowed_extensions_uris is not supported. Please define only one of those."
         )
         import sys

jupyterlab_server/settings_utils.py

@@ -295,7 +295,6 @@ def _get_overrides(app_settings_dir):
                     path_overrides = json.load(fid)
                 for plugin_id, config in path_overrides.items():
                     recursive_update(overrides.setdefault(plugin_id, {}), config)
-                print(overrides_path, overrides)
             except Exception as e:
                 error = e
 

jupyterlab_server/workspaces_app.py

@@ -1,6 +1,7 @@
 """A workspace management CLI"""
 import json
 import sys
+import warnings
 from pathlib import Path
 
 from jupyter_core.application import JupyterApp
@@ -85,7 +86,7 @@ def initialize(self, *args, **kwargs):
 
     def start(self):
         if len(self.extra_args) > 1:
-            print("Too many arguments were provided for workspace export.")
+            warnings.warn("Too many arguments were provided for workspace export.")
             self.exit(1)
 
         raw = DEFAULT_WORKSPACE if not self.extra_args else self.extra_args[0]