Add helper function

List available processes

config.py

@@ -10,6 +10,20 @@ import pint
 
 import librepdk.technologies
 
+def available_technologies():
+	techfile_filter = os.path.join("librepdk","technologies","*.tech.*")
+	# find technology files
+	techfiles=[]
+	for path in sys.path:
+		techfiles += glob(os.path.join(path,techfile_filter))
+	# extract names
+	technologies = []
+	for i, file in enumerate(techfiles):
+		module = SourceFileLoader(str(i), file).load_module()
+		if hasattr(module, "name"):
+			technologies.append(module.name)
+	return technologies
+
 class Config:
 	confname = None
 	tech_data = None
@@ -24,8 +38,8 @@ class Config:
 		techfiles=[]
 		electricfiles=[]
 		for path in sys.path:
-			techfiles+=glob(os.path.join(path,techfile_filter))
-			electricfiles+=glob(os.path.join(path,electric_filter))
+			techfiles += glob(os.path.join(path,techfile_filter))
+			electricfiles += glob(os.path.join(path,electric_filter))
 
 		# find technology files
 		technologies = []