Also style-check slacker.py

Author: netromdk

Makefile

@@ -20,6 +20,7 @@ check-cmds:
 	./slacker.py --verbose --check
 
 check-style:
-	flake8 --ignore E111,E114,E302 --max-line-length 100 --count --show-source slacker
+	flake8 --ignore E111,E114,E121,E126,E302 --max-line-length 100 --count --show-source \
+	  slacker slacker.py
 
 check: check-cmds check-style

slacker.py

@@ -3,11 +3,11 @@
 # Make sure v3+ is used.
 import sys
 vinfo = sys.version_info
-if vinfo.major < 3:
-  print("You are using Python v{}.{}. v3+ is required!".format(vinfo.major, vinfo.minor))
+if vinfo < (3, 0):
+  print("Python v3+ is required! You are using v{}.{}.".format(vinfo.major, vinfo.minor))
   sys.exit(-1)
 
-from slacker.main import start_slacker
+from slacker.main import start_slacker  # noqa: E402
 
 if __name__ == "__main__":
   start_slacker()