tty: Add tty.py

Author: Expertcoderz

src/tty.py

@@ -0,0 +1,41 @@
+#!/usr/bin/python3
+
+import os
+import sys
+from optparse import OptionParser
+
+
+def tty(opts):
+    try:
+        ttyname = os.ttyname(sys.stdin.fileno())
+    except OSError:
+        if not opts.silent:
+            print("not a tty")  # to stdout, not stderr
+        sys.exit(1)
+    else:
+        if not opts.silent:
+            print(ttyname)
+
+
+if __name__ == "__main__":
+    parser = OptionParser(
+        usage="Usage: %prog [OPTION]",
+        description="Print the path to the terminal connected to standard input.",
+        add_help_option=False,
+    )
+    parser.add_option("--help", action="help", help="show usage information and exit")
+
+    parser.add_option(
+        "-s",
+        "--silent",
+        "--quiet",
+        action="store_true",
+        help="print nothing; only return an exit status",
+    )
+
+    opts, args = parser.parse_args()
+
+    if args:
+        parser.error(f"extra operand '{args[0]}'")
+
+    tty(opts)