From 695fe467f55780ee32f770b318496b0a1fcd6c4b Mon Sep 17 00:00:00 2001
From: Austin Macdonald <austin@dartmouth.edu>
Date: Tue, 28 May 2024 09:31:34 -0500
Subject: [PATCH] Periods look cleaner than hyphens for iso8601

Fixes: #32
---
 src/duct.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/duct.py b/src/duct.py
index 493480b6..d31a7761 100755
--- a/src/duct.py
+++ b/src/duct.py
@@ -333,7 +333,7 @@ def format_output_prefix(output_prefix_template: str) -> str:
     f_kwargs = {
         # 'pure' iso 8601 does not make good filenames
         "datetime": datenow.isoformat(),
-        "datetime_filesafe": datenow.strftime("%Y-%m-%dT%H-%M-%S"),
+        "datetime_filesafe": datenow.strftime("%Y.%m.%dT%H.%M.%S"),
         "pid": os.getpid(),
     }
     return output_prefix_template.format(**f_kwargs)