Merge pull request #94989 from ggailey777/crs-functions-temp-dir

Adding guidance for using tmp directory in Python

Author: PRMerger15

articles/azure-functions/functions-reference-python.md

@@ -529,6 +529,27 @@ class TestFunction(unittest.TestCase):
             'msg body: test',
         )
 ```
+## Temporary files
+
+The `tempfile.gettempdir()` method returns a temporary folder, which on Linux is `/tmp`. Your application can use this directory to store temporary files generated and used by your functions during execution. 
+
+> [!IMPORTANT]
+> Files written to the temporary directory aren't guaranteed to persist across invocations. During scale out, temporary files aren't shared between instances. 
+
+The following example creates a named temporary file in the temporary directory (`/tmp`):
+
+```python
+import logging
+import azure.functions as func
+import tempfile
+from os import listdir
+
+#---
+   tempFilePath = tempfile.gettempdir()   
+   fp = tempfile.NamedTemporaryFile()     
+   fp.write(b'Hello world!')              
+   filesDirListInTemp = listdir(tempFilePath)     
+```   
 
 ## Known issues and FAQ