deluge/deluge/common.py
2014-09-19 13:39:41 +01:00

1029 lines
28 KiB
Python

# -*- coding: utf-8 -*-
#
# Copyright (C) 2007,2008 Andrew Resch <andrewresch@gmail.com>
#
# This file is part of Deluge and is licensed under GNU General Public License 3.0, or later, with
# the additional special exception to link portions of this program with the OpenSSL library.
# See LICENSE for more details.
#
"""Common functions for various parts of Deluge to use."""
import base64
import gettext
import locale
import logging
import os
import platform
import subprocess
import sys
import time
import urllib
import urlparse
import chardet
import pkg_resources
from deluge.error import InvalidPathError
try:
import dbus
bus = dbus.SessionBus()
dbus_fileman = bus.get_object("org.freedesktop.FileManager1", "/org/freedesktop/FileManager1")
except:
dbus_fileman = None
log = logging.getLogger(__name__)
TORRENT_STATE = [
"Allocating",
"Checking",
"Downloading",
"Seeding",
"Paused",
"Error",
"Queued",
"Moving"
]
FILE_PRIORITY = {
0: "Do Not Download",
1: "Normal Priority",
2: "High Priority",
3: "High Priority",
4: "High Priority",
5: "High Priority",
6: "High Priority",
7: "Highest Priority",
"Do Not Download": 0,
"Normal Priority": 1,
"High Priority": 5,
"Highest Priority": 7
}
def get_version():
"""
Returns the program version from the egg metadata
:returns: the version of Deluge
:rtype: string
"""
return pkg_resources.require("Deluge")[0].version
def get_default_config_dir(filename=None):
"""
:param filename: if None, only the config path is returned, if provided,
a path including the filename will be returned
:type filename: string
:returns: a file path to the config directory and optional filename
:rtype: string
"""
if windows_check():
def save_config_path(resource):
app_data_path = os.environ.get("APPDATA")
if not app_data_path:
import _winreg
hkey = _winreg.OpenKey(_winreg.HKEY_CURRENT_USER,
"Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\Shell Folders")
app_data_reg = _winreg.QueryValueEx(hkey, "AppData")
app_data_path = app_data_reg[0]
_winreg.CloseKey(hkey)
return os.path.join(app_data_path, resource)
else:
from xdg.BaseDirectory import save_config_path
if not filename:
filename = ''
try:
return os.path.join(save_config_path("deluge"), filename)
except OSError as ex:
log.error("Unable to use default config directory, exiting... (%s)", ex)
sys.exit(1)
def get_default_download_dir():
"""
:returns: the default download directory
:rtype: string
"""
download_dir = ""
if not windows_check():
from xdg.BaseDirectory import xdg_config_home
try:
with open(os.path.join(xdg_config_home, 'user-dirs.dirs'), 'r') as _file:
for line in _file:
if not line.startswith('#') and line.startswith('XDG_DOWNLOAD_DIR'):
download_dir = os.path.expandvars(line.partition("=")[2].rstrip().strip('"'))
break
except IOError:
pass
if not download_dir:
download_dir = os.path.join(os.path.expanduser("~"), 'Downloads')
return download_dir
def windows_check():
"""
Checks if the current platform is Windows
:returns: True or False
:rtype: bool
"""
return platform.system() in ('Windows', 'Microsoft')
def vista_check():
"""
Checks if the current platform is Windows Vista
:returns: True or False
:rtype: bool
"""
return platform.release() == "Vista"
def osx_check():
"""
Checks if the current platform is Mac OS X
:returns: True or False
:rtype: bool
"""
return platform.system() == "Darwin"
def get_pixmap(fname):
"""
Provides easy access to files in the deluge/ui/data/pixmaps folder within the Deluge egg
:param fname: the filename to look for
:type fname: string
:returns: a path to a pixmap file included with Deluge
:rtype: string
"""
return resource_filename("deluge", os.path.join("ui", "data", "pixmaps", fname))
def resource_filename(module, path):
# While developing, if there's a second deluge package, installed globally
# and another in develop mode somewhere else, while pkg_resources.require("Deluge")
# returns the proper deluge instance, pkg_resources.resource_filename does
# not, it returns the first found on the python path, which is not good
# enough.
# This is a work-around that.
return pkg_resources.require("Deluge>=%s" % get_version())[0].get_resource_filename(
pkg_resources._manager, os.path.join(*(module.split(".") + [path]))
)
def open_file(path, timestamp=None):
"""Opens a file or folder using the system configured program.
Args:
path (str): The path to the file or folder to open.
timestamp (int, optional): An event request timestamp.
"""
if windows_check():
os.startfile(path)
elif osx_check():
subprocess.Popen(["open", path])
else:
if timestamp is None:
timestamp = int(time.time())
env = os.environ.copy()
env["DESKTOP_STARTUP_ID"] = "%s-%u-%s-xdg_open_TIME%d" % \
(os.path.basename(sys.argv[0]), os.getpid(), os.uname()[1], timestamp)
subprocess.Popen(["xdg-open", "%s" % path], env=env)
def show_file(path, timestamp=None):
"""Shows (highlights) a file or folder using the system configured file manager.
Args:
path (str): The path to the file or folder to show.
timestamp (int, optional): An event request timestamp.
"""
if windows_check():
subprocess.Popen(["explorer", "/select,", path])
elif osx_check():
subprocess.Popen(["open", "-R", path])
else:
if timestamp is None:
timestamp = int(time.time())
startup_id = "%s_%u_%s-dbus_TIME%d" % (os.path.basename(sys.argv[0]), os.getpid(), os.uname()[1], timestamp)
if dbus_fileman:
paths = [urlparse.urljoin("file:", urllib.pathname2url(utf8_encoded(path)))]
dbus_fileman.ShowItems(paths, startup_id, dbus_interface="org.freedesktop.FileManager1")
else:
env = os.environ.copy()
env["DESKTOP_STARTUP_ID"] = startup_id.replace("dbus", "xdg-open")
# No option in xdg to highlight a file so just open parent folder.
subprocess.Popen(["xdg-open", os.path.dirname(path.rstrip("/"))], env=env)
def open_url_in_browser(url):
"""
Opens a url in the desktop's default browser
:param url: the url to open
:type url: string
"""
import webbrowser
webbrowser.open(url)
## Formatting text functions
# For performance reasons these fsize units are translated outside the function
byte_txt = "Bytes"
kib_txt = "KiB"
mib_txt = "MiB"
gib_txt = "GiB"
def translate_size_units():
global byte_txt, kib_txt, mib_txt, gib_txt
byte_txt = _("Bytes")
kib_txt = _("KiB")
mib_txt = _("MiB")
gib_txt = _("GiB")
def fsize(fsize_b):
"""
Formats the bytes value into a string with KiB, MiB or GiB units
:param fsize_b: the filesize in bytes
:type fsize_b: int
:returns: formatted string in KiB, MiB or GiB units
:rtype: string
**Usage**
>>> fsize(112245)
'109.6 KiB'
"""
# Bigger than 1 GiB
if (fsize_b >= 1073741824):
return "%.1f %s" % (fsize_b / 1073741824.0, gib_txt)
# Bigger than 1 MiB
elif (fsize_b >= 1048576):
return "%.1f %s" % (fsize_b / 1048576.0, mib_txt)
# Bigger than 1 KiB
elif (fsize_b >= 1024):
return "%.1f %s" % (fsize_b / 1024.0, kib_txt)
else:
return "%d %s" % (fsize_b, byte_txt)
def fsize_short(fsize_b):
"""
Formats the bytes value into a string with K, M or G units
:param fsize_b: the filesize in bytes
:type fsize_b: int
:returns: formatted string in K, M or G units
:rtype: string
**Usage**
>>> fsize(112245)
'109.6 K'
"""
fsize_kb = fsize_b / 1024.0
if fsize_kb < 1024:
return "%.1f %s" % (fsize_kb, _("K"))
fsize_mb = fsize_kb / 1024.0
if fsize_mb < 1024:
return "%.1f %s" % (fsize_mb, _("M"))
fsize_gb = fsize_mb / 1024.0
return "%.1f %s" % (fsize_gb, _("G"))
def fpcnt(dec):
"""
Formats a string to display a percentage with two decimal places
:param dec: the ratio in the range [0.0, 1.0]
:type dec: float
:returns: a formatted string representing a percentage
:rtype: string
**Usage**
>>> fpcnt(0.9311)
'93.11%'
"""
return '%.2f%%' % (dec * 100)
def fspeed(bps):
"""
Formats a string to display a transfer speed utilizing :func:`fsize`
:param bps: bytes per second
:type bps: int
:returns: a formatted string representing transfer speed
:rtype: string
**Usage**
>>> fspeed(43134)
'42.1 KiB/s'
"""
fspeed_kb = bps / 1024.0
if fspeed_kb < 1024:
return "%.1f %s" % (fspeed_kb, _("KiB/s"))
fspeed_mb = fspeed_kb / 1024.0
if fspeed_mb < 1024:
return "%.1f %s" % (fspeed_mb, _("MiB/s"))
fspeed_gb = fspeed_mb / 1024.0
return "%.1f %s" % (fspeed_gb, _("GiB/s"))
def fpeer(num_peers, total_peers):
"""
Formats a string to show 'num_peers' ('total_peers')
:param num_peers: the number of connected peers
:type num_peers: int
:param total_peers: the total number of peers
:type total_peers: int
:returns: a formatted string: num_peers (total_peers), if total_peers < 0, then it will not be shown
:rtype: string
**Usage**
>>> fpeer(10, 20)
'10 (20)'
>>> fpeer(10, -1)
'10'
"""
if total_peers > -1:
return "%d (%d)" % (num_peers, total_peers)
else:
return "%d" % num_peers
def ftime(seconds):
"""
Formats a string to show time in a human readable form
:param seconds: the number of seconds
:type seconds: int
:returns: a formatted time string, will return '' if seconds == 0
:rtype: string
**Usage**
>>> ftime(23011)
'6h 23m'
"""
if seconds == 0:
return ""
if seconds < 60:
return '%ds' % (seconds)
minutes = seconds / 60
if minutes < 60:
seconds = seconds % 60
return '%dm %ds' % (minutes, seconds)
hours = minutes / 60
if hours < 24:
minutes = minutes % 60
return '%dh %dm' % (hours, minutes)
days = hours / 24
if days < 7:
hours = hours % 24
return '%dd %dh' % (days, hours)
weeks = days / 7
if weeks < 52:
days = days % 7
return '%dw %dd' % (weeks, days)
years = weeks / 52
weeks = weeks % 52
return '%dy %dw' % (years, weeks)
def fdate(seconds, date_only=False, precision_secs=False):
"""
Formats a date time string in the locale's date representation based on the systems timezone
:param seconds: time in seconds since the Epoch
:type seconds: float
:param precision_secs: include seconds in time format
:type precision_secs: bool
:returns: a string in the locale's datetime representation or "" if seconds < 0
:rtype: string
"""
if seconds < 0:
return ""
if precision_secs:
return time.strftime("%x %X", time.localtime(seconds))
else:
return time.strftime("%x %H:%M", time.localtime(seconds))
def is_url(url):
"""
A simple test to check if the URL is valid
:param url: the url to test
:type url: string
:returns: True or False
:rtype: bool
**Usage**
>>> is_url("http://deluge-torrent.org")
True
"""
return url.partition('://')[0] in ("http", "https", "ftp", "udp")
def is_magnet(uri):
"""
A check to determine if a uri is a valid bittorrent magnet uri
:param uri: the uri to check
:type uri: string
:returns: True or False
:rtype: bool
**Usage**
>>> is_magnet("magnet:?xt=urn:btih:SU5225URMTUEQLDXQWRB2EQWN6KLTYKN")
True
"""
magnet_scheme = 'magnet:?'
xt_param = 'xt=urn:btih:'
if uri.startswith(magnet_scheme) and xt_param in uri:
return True
return False
def get_magnet_info(uri):
"""
Return information about a magnet link.
:param uri: the magnet link
:type uri: string
:returns: information about the magnet link:
::
{
"name": the torrent name,
"info_hash": the torrents info_hash,
"files_tree": empty value for magnet links
}
:rtype: dictionary
"""
magnet_scheme = 'magnet:?'
xt_param = 'xt=urn:btih:'
dn_param = 'dn='
if uri.startswith(magnet_scheme):
name = None
info_hash = None
for param in uri[len(magnet_scheme):].split('&'):
if param.startswith(xt_param):
xt_hash = param[len(xt_param):]
if len(xt_hash) == 32:
info_hash = base64.b32decode(xt_hash).encode("hex")
elif len(xt_hash) == 40:
info_hash = xt_hash
else:
break
elif param.startswith(dn_param):
name = urllib.unquote_plus(param[len(dn_param):])
if info_hash:
if not name:
name = info_hash
return {"name": name, "info_hash": info_hash, "files_tree": ''}
return False
def create_magnet_uri(infohash, name=None, trackers=[]):
"""
Creates a magnet uri
:param infohash: the info-hash of the torrent
:type infohash: string
:param name: the name of the torrent (optional)
:type name: string
:param trackers: the trackers to announce to (optional)
:type trackers: list of strings
:returns: a magnet uri string
:rtype: string
"""
from base64 import b32encode
uri = "magnet:?xt=urn:btih:" + b32encode(infohash.decode("hex"))
if name:
uri = uri + "&dn=" + name
if trackers:
for t in trackers:
uri = uri + "&tr=" + t
return uri
def get_path_size(path):
"""
Gets the size in bytes of 'path'
:param path: the path to check for size
:type path: string
:returns: the size in bytes of the path or -1 if the path does not exist
:rtype: int
"""
if not os.path.exists(path):
return -1
if os.path.isfile(path):
return os.path.getsize(path)
dir_size = 0
for (p, dirs, files) in os.walk(path):
for file in files:
filename = os.path.join(p, file)
dir_size += os.path.getsize(filename)
return dir_size
def free_space(path):
"""
Gets the free space available at 'path'
:param path: the path to check
:type path: string
:returns: the free space at path in bytes
:rtype: int
:raises InvalidPathError: if the path is not valid
"""
if not path or not os.path.exists(path):
raise InvalidPathError("%s is not a valid path" % path)
if windows_check():
from win32file import GetDiskFreeSpaceEx
return GetDiskFreeSpaceEx(path)[0]
else:
disk_data = os.statvfs(path.encode("utf8"))
block_size = disk_data.f_frsize
return disk_data.f_bavail * block_size
def is_ip(ip):
"""
A simple test to see if 'ip' is valid
:param ip: the ip to check
:type ip: string
:returns: True or False
:rtype: bool
** Usage **
>>> is_ip("127.0.0.1")
True
"""
import socket
#first we test ipv4
try:
if windows_check():
if socket.inet_aton(ip):
return True
else:
if socket.inet_pton(socket.AF_INET, ip):
return True
except socket.error:
if not socket.has_ipv6:
return False
#now test ipv6
try:
if windows_check():
log.warning("ipv6 check unavailable on windows")
return True
else:
if socket.inet_pton(socket.AF_INET6, ip):
return True
except socket.error:
return False
def path_join(*parts):
"""
An implementation of os.path.join that always uses / for the separator
to ensure that the correct paths are produced when working with internal
paths on Windows.
"""
path = ''
for part in parts:
if not part:
continue
elif part[0] == '/':
path = part
elif not path:
path = part
else:
path += '/' + part
return path
XML_ESCAPES = (
('&', '&amp;'),
('<', '&lt;'),
('>', '&gt;'),
('"', '&quot;'),
("'", '&apos;')
)
def xml_decode(string):
"""
Unescape a string that was previously encoded for use within xml.
:param string: The string to escape
:type string: string
:returns: The unescaped version of the string.
:rtype: string
"""
for char, escape in XML_ESCAPES:
string = string.replace(escape, char)
return string
def xml_encode(string):
"""
Escape a string for use within an xml element or attribute.
:param string: The string to escape
:type string: string
:returns: An escaped version of the string.
:rtype: string
"""
for char, escape in XML_ESCAPES:
string = string.replace(char, escape)
return string
def decode_string(s, encoding="utf8"):
"""
Decodes a string and return unicode. If it cannot decode using
`:param:encoding` then it will try latin1, and if that fails,
try to detect the string encoding. If that fails, decode with
ignore.
:param s: string to decode
:type s: string
:keyword encoding: the encoding to use in the decoding
:type encoding: string
:returns: s converted to unicode
:rtype: unicode
"""
if not s:
return u''
elif isinstance(s, unicode):
return s
encodings = [lambda: ("utf8", 'strict'),
lambda: ("iso-8859-1", 'strict'),
lambda: (chardet.detect(s)["encoding"], 'strict'),
lambda: (encoding, 'ignore')]
if not encoding is "utf8":
encodings.insert(0, lambda: (encoding, 'strict'))
for l in encodings:
try:
return s.decode(*l())
except UnicodeDecodeError:
pass
return u''
def utf8_encoded(s, encoding="utf8"):
"""
Returns a utf8 encoded string of s
:param s: (unicode) string to (re-)encode
:type s: basestring
:keyword encoding: the encoding to use in the decoding
:type encoding: string
:returns: a utf8 encoded string of s
:rtype: str
"""
if isinstance(s, str):
s = decode_string(s, encoding).encode("utf8")
elif isinstance(s, unicode):
s = s.encode("utf8")
return s
class VersionSplit(object):
"""
Used for comparing version numbers.
:param ver: the version
:type ver: string
"""
def __init__(self, ver):
import re
version_re = re.compile(r'''
^
(?P<version>\d+\.\d+) # minimum 'N.N'
(?P<extraversion>(?:\.\d+)*) # any number of extra '.N' segments
(?:
(?P<prerel>[abc]|rc) # 'a'=alpha, 'b'=beta, 'c'=release candidate
# 'rc'= alias for release candidate
(?P<prerelversion>\d+(?:\.\d+)*)
)?
(?P<postdev>(\.post(?P<post>\d+))?(\.dev(?P<dev>\d+))?)?
$''', re.VERBOSE)
# Check for PEP 386 compliant version
match = re.search(version_re, ver)
if match:
group = [(x if x is not None else '') for x in match.group(1, 2, 3, 4, 8)]
vs = [''.join(group[0:2]), ''.join(group[2:4]), group[4].lstrip('.')]
else:
ver = ver.lower()
vs = ver.replace("_", "-").split("-")
self.version = [int(x) for x in vs[0].split(".")]
self.suffix = None
self.dev = False
if len(vs) > 1:
if vs[1].startswith(("rc", "a", "b", "c")):
self.suffix = vs[1]
if vs[-1].startswith('dev'):
self.dev = vs[-1]
def __cmp__(self, ver):
"""
The comparison method.
:param ver: the version to compare with
:type ver: VersionSplit
"""
# PEP 386 versions with .devN precede release version
if (bool(self.dev) != bool(ver.dev)):
if self.dev != 'dev':
self.dev = not self.dev
if ver.dev != 'dev':
ver.dev = not ver.dev
# If there is no suffix we use z because we want final
# to appear after alpha, beta, and rc alphabetically.
v1 = [self.version, self.suffix or 'z', self.dev]
v2 = [ver.version, ver.suffix or 'z', ver.dev]
return cmp(v1, v2)
# Common AUTH stuff
AUTH_LEVEL_NONE = 0
AUTH_LEVEL_READONLY = 1
AUTH_LEVEL_NORMAL = 5
AUTH_LEVEL_ADMIN = 10
AUTH_LEVEL_DEFAULT = AUTH_LEVEL_NORMAL
def create_auth_file():
import stat
import deluge.configmanager
auth_file = deluge.configmanager.get_config_dir("auth")
# Check for auth file and create if necessary
if not os.path.exists(auth_file):
fd = open(auth_file, "w")
fd.flush()
os.fsync(fd.fileno())
fd.close()
# Change the permissions on the file so only this user can read/write it
os.chmod(auth_file, stat.S_IREAD | stat.S_IWRITE)
def create_localclient_account(append=False):
import random
from hashlib import sha1 as sha
import deluge.configmanager
auth_file = deluge.configmanager.get_config_dir("auth")
if not os.path.exists(auth_file):
create_auth_file()
fd = open(auth_file, "a" if append else "w")
fd.write(":".join([
"localclient",
sha(str(random.random())).hexdigest(),
str(AUTH_LEVEL_ADMIN)
]) + '\n')
fd.flush()
os.fsync(fd.fileno())
fd.close()
def get_translations_path():
"""Get the absolute path to the directory containing translation files"""
return resource_filename("deluge", "i18n")
def set_env_variable(name, value):
'''
:param name: environment variable name
:param value: environment variable value
This function ensures that changes to an environment variable are applied
to each copy of the environment variables used by a process. Starting from
Python 2.4, os.environ changes only apply to the copy Python keeps (os.environ)
and are no longer automatically applied to the other copies for the process.
On Microsoft Windows, each process has multiple copies of the environment
variables, one managed by the OS and one managed by the C library. We also
need to take care of the fact that the C library used by Python is not
necessarily the same as the C library used by pygtk and friends. This because
the latest releases of pygtk and friends are built with mingw32 and are thus
linked against msvcrt.dll. The official gtk+ binaries have always been built
in this way.
Basen on _putenv in TransUtils.py from sourceforge project gramps
http://sourceforge.net/p/gramps/code/HEAD/tree/branches/maintenance/gramps32/src/TransUtils.py
'''
# Update Python's copy of the environment variables
os.environ[name] = value
if windows_check():
from ctypes import windll
from ctypes import cdll
from ctypes.util import find_msvcrt
# Update the copy maintained by Windows (so SysInternals Process Explorer sees it)
try:
result = windll.kernel32.SetEnvironmentVariableW(name, value)
if result == 0:
raise Warning
except Exception:
log.warning('Failed to set Env Var \'%s\' (\'kernel32.SetEnvironmentVariableW\')' % name)
else:
log.debug('Set Env Var \'%s\' to \'%s\' (\'kernel32.SetEnvironmentVariableW\')' % (name, value))
# Update the copy maintained by msvcrt (used by gtk+ runtime)
try:
result = cdll.msvcrt._putenv('%s=%s' % (name, value))
if result != 0:
raise Warning
except Exception:
log.warning('Failed to set Env Var \'%s\' (\'msvcrt._putenv\')' % name)
else:
log.debug('Set Env Var \'%s\' to \'%s\' (\'msvcrt._putenv\')' % (name, value))
# Update the copy maintained by whatever c runtime is used by Python
try:
msvcrt = find_msvcrt()
msvcrtname = str(msvcrt).split('.')[0] if '.' in msvcrt else str(msvcrt)
result = cdll.LoadLibrary(msvcrt)._putenv('%s=%s' % (name, value))
if result != 0:
raise Warning
except Exception:
log.warning('Failed to set Env Var \'%s\' (\'%s._putenv\')' % (name, msvcrtname))
else:
log.debug('Set Env Var \'%s\' to \'%s\' (\'%s._putenv\')' % (name, value, msvcrtname))
def set_language(lang):
"""
Set the language to use.
gettext and GtkBuilder will load the translations from the specified
language.
:param lang: the language, e.g. "en", "de" or "en_GB"
:type lang: str
"""
lang = str(lang)
# Necessary to set these environment variables for GtkBuilder
set_env_variable('LANGUAGE', lang) # Windows/Linux
set_env_variable('LANG', lang) # For OSX
translations_path = get_translations_path()
try:
ro = gettext.translation("deluge", localedir=translations_path, languages=[lang])
ro.install()
except IOError as ex:
log.warn("IOError when loading translations: %s", ex)
# Initialize gettext
def setup_translations(setup_gettext=True, setup_pygtk=False):
translations_path = get_translations_path()
domain = "deluge"
log.info("Setting up translations from %s", translations_path)
if setup_pygtk:
try:
log.info("Setting up GTK translations from %s", translations_path)
if windows_check():
import ctypes
libintl = ctypes.cdll.intl
libintl.bindtextdomain(domain, translations_path.encode(sys.getfilesystemencoding()))
libintl.textdomain(domain)
libintl.bind_textdomain_codeset(domain, "UTF-8")
libintl.gettext.restype = ctypes.c_char_p
# Use glade for plugins that still uses it
import gtk
import gtk.glade
gtk.glade.bindtextdomain(domain, translations_path)
gtk.glade.textdomain(domain)
except Exception as ex:
log.error("Unable to initialize glade translation!")
log.exception(ex)
if setup_gettext:
try:
if hasattr(locale, "bindtextdomain"):
locale.bindtextdomain(domain, translations_path)
if hasattr(locale, "textdomain"):
locale.textdomain(domain)
gettext.bindtextdomain(domain, translations_path)
gettext.bind_textdomain_codeset(domain, 'UTF-8')
gettext.textdomain(domain)
gettext.install(domain, translations_path, unicode=True)
except Exception as ex:
log.error("Unable to initialize gettext/locale!")
log.exception(ex)
import __builtin__
__builtin__.__dict__["_"] = lambda x: x
translate_size_units()
def unicode_argv():
""" Gets sys.argv as list of unicode objects on any platform."""
if windows_check():
# Versions 2.x of Python don't support Unicode in sys.argv on
# Windows, with the underlying Windows API instead replacing multi-byte
# characters with '?'.
from ctypes import POINTER, byref, cdll, c_int, windll
from ctypes.wintypes import LPCWSTR, LPWSTR
get_cmd_linew = cdll.kernel32.GetCommandLineW
get_cmd_linew.argtypes = []
get_cmd_linew.restype = LPCWSTR
cmdline_to_argvw = windll.shell32.CommandLineToArgvW
cmdline_to_argvw.argtypes = [LPCWSTR, POINTER(c_int)]
cmdline_to_argvw.restype = POINTER(LPWSTR)
cmd = get_cmd_linew()
argc = c_int(0)
argv = cmdline_to_argvw(cmd, byref(argc))
if argc.value > 0:
# Remove Python executable and commands if present
start = argc.value - len(sys.argv)
return [argv[i] for i in
xrange(start, argc.value)]
else:
# On other platforms, we have to find the likely encoding of the args and decode
# First check if sys.stdout or stdin have encoding set
encoding = getattr(sys.stdout, "encoding") or getattr(sys.stdin, "encoding")
# If that fails, check what the locale is set to
encoding = encoding or locale.getpreferredencoding()
# As a last resort, just default to utf-8
encoding = encoding or "utf-8"
return [arg.decode(encoding) for arg in sys.argv]