/usr/lib/python2.7/dist-packages/dateutil/zoneinfo/__init__.py is in python-dateutil 2.2-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 | # -*- coding: utf-8 -*-
"""
Copyright (c) 2003-2005 Gustavo Niemeyer <gustavo@niemeyer.net>
This module offers extensions to the standard Python
datetime module.
"""
import logging
import os
from subprocess import call
from tarfile import TarFile
from dateutil.tz import tzfile
__author__ = "Tomi Pieviläinen <tomi.pievilainen@iki.fi>"
__license__ = "Simplified BSD"
__all__ = ["setcachesize", "gettz", "rebuild"]
CACHE = []
CACHESIZE = 10
class tzfile(tzfile):
def __reduce__(self):
return (gettz, (self._filename,))
def getzoneinfofile():
filenames = sorted(os.listdir(os.path.join(os.path.dirname(__file__))))
filenames.reverse()
for entry in filenames:
if entry.startswith("zoneinfo") and ".tar." in entry:
return os.path.join(os.path.dirname(__file__), entry)
return None
ZONEINFOFILE = getzoneinfofile()
del getzoneinfofile
def setcachesize(size):
global CACHESIZE, CACHE
CACHESIZE = size
del CACHE[size:]
def gettz(name):
tzinfo = None
if ZONEINFOFILE:
for cachedname, tzinfo in CACHE:
if cachedname == name:
break
else:
tf = TarFile.open(ZONEINFOFILE)
try:
zonefile = tf.extractfile(name)
except KeyError:
tzinfo = None
else:
tzinfo = tzfile(zonefile)
tf.close()
CACHE.insert(0, (name, tzinfo))
del CACHE[CACHESIZE:]
return tzinfo
def rebuild(filename, tag=None, format="gz"):
"""Rebuild the internal timezone info in dateutil/zoneinfo/zoneinfo*tar*
filename is the timezone tarball from ftp.iana.org/tz.
"""
import tempfile, shutil
tmpdir = tempfile.mkdtemp()
zonedir = os.path.join(tmpdir, "zoneinfo")
moduledir = os.path.dirname(__file__)
if tag: tag = "-"+tag
targetname = "zoneinfo%s.tar.%s" % (tag, format)
try:
tf = TarFile.open(filename)
# The "backwards" zone file contains links to other files, so must be
# processed as last
for name in sorted(tf.getnames(),
key=lambda k: k != "backward" and k or "z"):
if not (name.endswith(".sh") or
name.endswith(".tab") or
name == "leapseconds"):
tf.extract(name, tmpdir)
filepath = os.path.join(tmpdir, name)
try:
# zic will return errors for nontz files in the package
# such as the Makefile or README, so check_call cannot
# be used (or at least extra checks would be needed)
call(["zic", "-d", zonedir, filepath])
except OSError as e:
if e.errno == 2:
logging.error(
"Could not find zic. Perhaps you need to install "
"libc-bin or some other package that provides it, "
"or it's not in your PATH?")
raise
tf.close()
target = os.path.join(moduledir, targetname)
for entry in os.listdir(moduledir):
if entry.startswith("zoneinfo") and ".tar." in entry:
os.unlink(os.path.join(moduledir, entry))
tf = TarFile.open(target, "w:%s" % format)
for entry in os.listdir(zonedir):
entrypath = os.path.join(zonedir, entry)
tf.add(entrypath, entry)
tf.close()
finally:
shutil.rmtree(tmpdir)
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