Use relative imports when importing offpunk's own modules

This should allow running offpunk locally from any
directory.

offpunk/__init__.py

@@ -21,9 +21,9 @@ import sys
 import time
 import urllib.parse
 import subprocess
-from offpunk import ansicat, netcache, opnk, themes
-from offpunk.utils import run,term_width,is_local,mode_url,unmode_url
-from offpunk.utils import _CONFIG_DIR,_DATA_DIR,_CACHE_PATH
+from . import ansicat, netcache, opnk, themes
+from .utils import run,term_width,is_local,mode_url,unmode_url
+from .utils import _CONFIG_DIR,_DATA_DIR,_CACHE_PATH
 try:
     import setproctitle
     setproctitle.setproctitle("offpunk")

offpunk/ansicat.py

@@ -10,9 +10,9 @@ import urllib
 import argparse
 import mimetypes
 import fnmatch
-from offpunk import netcache, themes
-from offpunk.utils import run,term_width,is_local,looks_like_base64
-from offpunk.utils import _DATA_DIR
+from . import netcache, themes
+from .utils import run,term_width,is_local,looks_like_base64
+from .utils import _DATA_DIR
 try:
     from readability import Document
     _HAS_READABILITY = True

offpunk/netcache.py

@@ -13,8 +13,8 @@ import datetime
 import hashlib
 import sqlite3
 from ssl import CertificateError
-from offpunk import ansicat, utils
-from offpunk.utils import _CACHE_PATH,_DATA_DIR,_CONFIG_DIR
+from . import ansicat, utils
+from .utils import _CACHE_PATH,_DATA_DIR,_CONFIG_DIR
 import time
 try:
     import chardet

offpunk/opnk.py

@@ -10,8 +10,8 @@ import argparse
 import shutil
 import time
 import fnmatch
-from offpunk import ansicat, netcache, utils
-from offpunk.utils import run,term_width,mode_url,unmode_url,is_local
+from . import ansicat, netcache, utils
+from .utils import run,term_width,mode_url,unmode_url,is_local
 
 _HAS_XDGOPEN = shutil.which('xdg-open')
 _GREP = "grep --color=auto"

offpunk/utils.py

@@ -13,7 +13,7 @@ import shutil
 import shlex
 import urllib.parse
 import urllib.parse
-from offpunk import cache_migration
+from . import cache_migration
 
 CACHE_VERSION = 1