setup.py: fix for issue #96

Author: NoMore201

setup.py

@@ -4,20 +4,22 @@
 
 import os.path
 import subprocess
+import shutil
 
-PROTOC_BIN = "/usr/bin/protoc"
+PROTOC_EXEC = "protoc"
 
 CURRENT_DIR = os.path.abspath( os.path.dirname( __file__ ) )
 
 class ProtobufBuilder(_build):
 
     def run(self):
         # check if protobuf is installed
-        if not os.path.isfile(PROTOC_BIN):
+        exec_path = shutil.which(PROTOC_EXEC)
+        if exec_path is None:
             raise Exception("You should install protobuf compiler")
 
         print("Building protobuf file")
-        subprocess.run([PROTOC_BIN,
+        subprocess.run([exec_path,
             "--proto_path=" + CURRENT_DIR,
             "--python_out=" + CURRENT_DIR + "/gpapi/",
             CURRENT_DIR + "/googleplay.proto"])