update

.CondaPkg/env/Lib/warnings.py

@@ -36,7 +36,9 @@ def _formatwarnmsg_impl(msg):
     category = msg.category.__name__
     s =  f"{msg.filename}:{msg.lineno}: {category}: {msg.message}\n"
 
-    if msg.line is None:
+    # "sys" is a made up file name when we are not able to get the frame
+    # so do not try to get the source line
+    if msg.line is None and msg.filename != "sys":
         try:
             import linecache
             line = linecache.getline(msg.filename, msg.lineno)
@@ -58,15 +60,16 @@ def _formatwarnmsg_impl(msg):
         # catch Exception, not only ImportError and RecursionError.
         except Exception:
             # don't suggest to enable tracemalloc if it's not available
-            tracing = True
+            suggest_tracemalloc = False
             tb = None
         else:
-            tracing = tracemalloc.is_tracing()
             try:
+                suggest_tracemalloc = not tracemalloc.is_tracing()
                 tb = tracemalloc.get_object_traceback(msg.source)
             except Exception:
                 # When a warning is logged during Python shutdown, tracemalloc
                 # and the import machinery don't work anymore
+                suggest_tracemalloc = False
                 tb = None
 
         if tb is not None:
@@ -85,7 +88,7 @@ def _formatwarnmsg_impl(msg):
                 if line:
                     line = line.strip()
                     s += '    %s\n' % line
-        elif not tracing:
+        elif suggest_tracemalloc:
             s += (f'{category}: Enable tracemalloc to get the object '
                   f'allocation traceback\n')
     return s