prefer getpass.getuser() over os.getlogin()

os.getlogin() returns an undesired value in a runuser environment and is
not overridable with environment.

1 files changed, 4 insertions, 1 deletions

diff --git a/examples/unschroot_fs.py b/examples/unschroot_fs.py
index 68e2320..a07f32d 100755
--- a/examples/unschroot_fs.py
+++ b/examples/unschroot_fs.py
@@ -18,6 +18,7 @@ between calls with no background processes or persistent namespaces.
 
 import argparse
 import grp
+import getpass
 import os
 import pathlib
 import pwd
@@ -474,7 +475,9 @@ def main() -> None:
     parser.add_argument("-d", "--directory", action="store")
     parser.add_argument("-p", "--preserve-environment", action="store_true")
     parser.add_argument("-q", "--quiet", action="store_true")
-    parser.add_argument("-u", "--user", action="store", default=os.getlogin())
+    parser.add_argument(
+        "-u", "--user", action="store", default=getpass.getuser()
+    )
     parser.add_argument("--isolate-network", action="store_true")
     parser.add_argument("command", nargs="*")
     args = parser.parse_args()