import json
import locale
import os
+import pipes
import platform
import re
import socket
return f
return None
+# On python2.6 the xml.etree.ElementTree.Element methods don't support
+# the namespace parameter
+def xpath_with_ns(path, ns_map):
+ components = [c.split(':') for c in path.split('/')]
+ replaced = []
+ for c in components:
+ if len(c) == 1:
+ replaced.append(c[0])
+ else:
+ ns, tag = c
+ replaced.append('{%s}%s' % (ns_map[ns], tag))
+ return '/'.join(replaced)
+
def htmlentity_transform(matchobj):
"""Transforms an HTML entity to a character.
return u''.join(traceback.format_tb(self.traceback))
+class RegexNotFoundError(ExtractorError):
+ """Error when a regex didn't match"""
+ pass
+
+
class DownloadError(Exception):
"""Download Error exception.
def read(self, *args):
return self.f.read(*args)
+
+
+def shell_quote(args):
+ return ' '.join(map(pipes.quote, args))
+
+
+def takewhile_inclusive(pred, seq):
+ """ Like itertools.takewhile, but include the latest evaluated element
+ (the first element so that Not pred(e)) """
+ for e in seq:
+ yield e
+ if not pred(e):
+ return
+
+
+def smuggle_url(url, data):
+ """ Pass additional data in a URL for internal use. """
+
+ sdata = compat_urllib_parse.urlencode(
+ {u'__youtubedl_smuggle': json.dumps(data)})
+ return url + u'#' + sdata
+
+
+def unsmuggle_url(smug_url):
+ if not '#__youtubedl_smuggle' in smug_url:
+ return smug_url, None
+ url, _, sdata = smug_url.rpartition(u'#')
+ jsond = compat_parse_qs(sdata)[u'__youtubedl_smuggle'][0]
+ data = json.loads(jsond)
+ return url, data