Fix #66: Encode int to str in environ

diff --git a/autorandr.py b/autorandr.py
index ad4b22b0fbeec18e7e89695d4c9a481f76cc74a9..8d561fd85874d1b1d50499344744119715744f53 100755 (executable)
--- a/autorandr.py
+++ b/autorandr.py
@@ -844,7 +844,7 @@ def dispatch_call_to_sessions(argv):
         display = process_environ["DISPLAY"] if "DISPLAY" in process_environ else None
 
         # To allow scripts to detect batch invocation (especially useful for predetect)
-        process_environ["AUTORANDR_BATCH_PID"] = os.getpid()
+        process_environ["AUTORANDR_BATCH_PID"] = str(os.getpid())
 
         if display and display not in X11_displays_done:
             try: