1 files changed, 24 insertions, 5 deletions
diff --git a/gn_libs/debug.py b/gn_libs/debug.py
index 6b7173b..7ad10e0 100644
--- a/gn_libs/debug.py
+++ b/gn_libs/debug.py
@@ -1,6 +1,7 @@
 """Debug utilities"""
 import logging
-from flask import current_app
+import importlib.util
+from typing import Callable
 
 __this_module_name__ = __name__
 
@@ -8,10 +9,16 @@ __this_module_name__ = __name__
 # pylint: disable=invalid-name
 def getLogger(name: str):
     """Return a logger"""
-    return (
-        logging.getLogger(name)
-        if not bool(current_app)
-        else current_app.logger)
+    flask_spec = importlib.util.find_spec("flask")
+    if bool(flask_spec):
+        current_app = importlib.import_module("flask").current_app
+        return (
+            logging.getLogger(name)
+            if not bool(current_app)
+            else current_app.logger)
+
+    return logging.getLogger(name)
+
 
 def __pk__(*args):
     """Format log entry"""
@@ -20,3 +27,15 @@ def __pk__(*args):
     logger = getLogger(__this_module_name__)
     logger.debug("%s: %s", title_vals, value)
     return value
+
+
+def make_peeker(logger: logging.Logger) -> Callable:
+    """Make a peeker function that's very much like __pk__ but that uses the
+    given logger."""
+    def peeker(*args):
+        value = args[-1]
+        title_vals = " => ".join(args[0:-1])
+        logger.debug("%s: %s", title_vals, value)
+        return value
+
+    return peeker