Merge pull request #136 from dwightmulcahy/cleanupimports

build: clean up unused imports and ignore IntelliJ files

.gitignore

@@ -53,4 +53,7 @@ coverage.xml
 docs/_build/
 
 # PyBuilder
-target/
+target/
+
+# IntelliJ
+.idea/

piku.py

@@ -11,7 +11,6 @@ except AssertionError:
 from collections import defaultdict, deque
 from fcntl import fcntl, F_SETFL, F_GETFL
 from glob import glob
-from grp import getgrgid
 from json import loads
 from multiprocessing import cpu_count
 from os import chmod, getgid, getuid, symlink, unlink, remove, stat, listdir, environ, makedirs, O_NONBLOCK