X-Git-Url: https://git.ralfj.de/lilass.git/blobdiff_plain/f8b82a2309bc55f7a216669038dccacf650c6878..14aaede5b451a5b903dde99202925eb4a016c231:/dsl.py

diff --git a/dsl.py b/dsl.py
index b4f77bf..7dc8665 100755
--- a/dsl.py
+++ b/dsl.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python
+#!/usr/bin/python3
 # DSL - easy Display Setup for Laptops
 # Copyright (C) 2012 Ralf Jung <post@ralfj.de>
 #
@@ -57,15 +57,15 @@ class ScreenSetup:
 		return args
 
 # Load a section-less config file: maps parameter names to space-separated lists of strings (with shell quotation)
-def loadConfigFile(file):
+def loadConfigFile(filename):
 	import shlex
 	result = {}
-	if not os.path.exists(file):
+	if not os.path.exists(filename):
 		return result # no config file
 	# read config file
 	linenr = 0
-	with open(file) as file:
-		for line in file:
+	with open(filename) as f:
+		for line in f:
 			linenr += 1
 			line = line.strip()
 			if not len(line) or line.startswith("#"): continue # skip empty and comment lines
@@ -82,10 +82,9 @@ def loadConfigFile(file):
 # helper function: execute a process, return output as iterator, throw exception if there was an error
 # you *must* iterate to the end if you use this!
 def processOutputGen(*args):
-	p = subprocess.Popen(args, stdout=subprocess.PIPE)
-	for line in p.stdout:
-		yield line
-	p.wait() # wait for process to exit (it closed stdout, so it can't block anymore)
+	with subprocess.Popen(args, stdout=subprocess.PIPE) as p:
+		for line in p.stdout:
+			yield line.decode("utf-8")
 	if p.returncode != 0:
 		raise Exception("Error executing "+str(args))
 def processOutputIt(*args):
@@ -118,7 +117,7 @@ def getXrandrInformation():
 		# unknown line
 		# not fatal as my xrandr shows strange stuff when a display is enabled, but not connected
 		#raise Exception("Unknown line in xrandr output:\n"+line)
-		print "Warning: Unknown xrandr line %s" % line
+		print("Warning: Unknown xrandr line %s" % line)
 	return connectors
 
 # convert a (width, height) pair into a string accepted by xrandr as argument for --mode
@@ -171,7 +170,7 @@ def classifyConnectors(allConnectors):
 			if connector == internalConnector:
 				raise Exception("%s is both internal and external, that doesn't make sense." % connector)
 	else:
-		externalConnectors = allConnectors.keys()
+		externalConnectors = list(allConnectors.keys())
 		externalConnectors.remove(internalConnector)
 	if not externalConnectors:
 		raise Exception("No external connector found - either your config is wrong, or your machine has only one connector.")
@@ -232,7 +231,7 @@ if __name__ == "__main__":
 		call = ["xrandr"]
 		for name in connectorArgs:
 			call += ["--output", name] + connectorArgs[name]
-		print "Call that will be made:",call
+		print("Call that will be made:",call)
 		subprocess.check_call(call)
 	except Exception as e:
 		frontend.error(str(e))