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@@ -47,126 +47,6 @@ def make_sha(source=''):
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return sha1
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-try:
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- from collections import namedtuple
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-except ImportError:
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- # Recipe for namedtuple from http://code.activestate.com/recipes/500261/
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- # Copyright (c) 2007 Python Software Foundation; All Rights Reserved
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- # Licensed under the Python Software Foundation License.
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- from operator import itemgetter as _itemgetter
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- from keyword import iskeyword as _iskeyword
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- import sys as _sys
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-
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- def namedtuple(typename, field_names, verbose=False, rename=False):
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- """Returns a new subclass of tuple with named fields.
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-
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- >>> Point = namedtuple('Point', 'x y')
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- >>> Point.__doc__ # docstring for the new class
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- 'Point(x, y)'
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- >>> p = Point(11, y=22) # instantiate with positional args or keywords
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- >>> p[0] + p[1] # indexable like a plain tuple
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- 33
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- >>> x, y = p # unpack like a regular tuple
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- >>> x, y
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- (11, 22)
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- >>> p.x + p.y # fields also accessable by name
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- 33
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- >>> d = p._asdict() # convert to a dictionary
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- >>> d['x']
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- 11
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- >>> Point(**d) # convert from a dictionary
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- Point(x=11, y=22)
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- >>> p._replace(x=100) # _replace() is like str.replace() but targets named fields
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- Point(x=100, y=22)
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-
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- """
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-
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- # Parse and validate the field names. Validation serves two purposes,
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- # generating informative error messages and preventing template injection attacks.
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- if isinstance(field_names, basestring):
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- field_names = field_names.replace(',', ' ').split() # names separated by whitespace and/or commas
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- field_names = tuple(map(str, field_names))
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- if rename:
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- names = list(field_names)
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- seen = set()
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- for i, name in enumerate(names):
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- if (not min(c.isalnum() or c=='_' for c in name) or _iskeyword(name)
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- or not name or name[0].isdigit() or name.startswith('_')
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- or name in seen):
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- names[i] = '_%d' % i
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- seen.add(name)
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- field_names = tuple(names)
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- for name in (typename,) + field_names:
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- if not min(c.isalnum() or c=='_' for c in name):
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- raise ValueError('Type names and field names can only contain alphanumeric characters and underscores: %r' % name)
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- if _iskeyword(name):
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- raise ValueError('Type names and field names cannot be a keyword: %r' % name)
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- if name[0].isdigit():
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- raise ValueError('Type names and field names cannot start with a number: %r' % name)
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- seen_names = set()
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- for name in field_names:
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- if name.startswith('_') and not rename:
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- raise ValueError('Field names cannot start with an underscore: %r' % name)
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- if name in seen_names:
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- raise ValueError('Encountered duplicate field name: %r' % name)
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- seen_names.add(name)
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-
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- # Create and fill-in the class template
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- numfields = len(field_names)
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- argtxt = repr(field_names).replace("'", "")[1:-1] # tuple repr without parens or quotes
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- reprtxt = ', '.join('%s=%%r' % name for name in field_names)
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- template = '''class %(typename)s(tuple):
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- '%(typename)s(%(argtxt)s)' \n
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- __slots__ = () \n
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- _fields = %(field_names)r \n
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- def __new__(_cls, %(argtxt)s):
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- return _tuple.__new__(_cls, (%(argtxt)s)) \n
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- @classmethod
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- def _make(cls, iterable, new=tuple.__new__, len=len):
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- 'Make a new %(typename)s object from a sequence or iterable'
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- result = new(cls, iterable)
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- if len(result) != %(numfields)d:
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- raise TypeError('Expected %(numfields)d arguments, got %%d' %% len(result))
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- return result \n
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- def __repr__(self):
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- return '%(typename)s(%(reprtxt)s)' %% self \n
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- def _asdict(self):
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- 'Return a new dict which maps field names to their values'
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- return dict(zip(self._fields, self)) \n
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- def _replace(_self, **kwds):
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- 'Return a new %(typename)s object replacing specified fields with new values'
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- result = _self._make(map(kwds.pop, %(field_names)r, _self))
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- if kwds:
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- raise ValueError('Got unexpected field names: %%r' %% kwds.keys())
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- return result \n
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- def __getnewargs__(self):
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- return tuple(self) \n\n''' % locals()
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- for i, name in enumerate(field_names):
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- template += ' %s = _property(_itemgetter(%d))\n' % (name, i)
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- if verbose:
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- print template
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-
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- # Execute the template string in a temporary namespace
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- namespace = dict(_itemgetter=_itemgetter, __name__='namedtuple_%s' % typename,
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- _property=property, _tuple=tuple)
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- try:
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- exec template in namespace
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- except SyntaxError, e:
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- raise SyntaxError(e.message + ':\n' + template)
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- result = namespace[typename]
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-
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- # For pickling to work, the __module__ variable needs to be set to the frame
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- # where the named tuple is created. Bypass this step in enviroments where
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- # sys._getframe is not defined (Jython for example) or sys._getframe is not
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- # defined for arguments greater than 0 (IronPython).
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- try:
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- result.__module__ = _sys._getframe(1).f_globals.get('__name__', '__main__')
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- except (AttributeError, ValueError):
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- pass
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-
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- return result
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-
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-
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# Backport of OrderedDict() class that runs on Python 2.4, 2.5, 2.6, 2.7 and pypy.
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# Passes Python2.7's test suite and incorporates all the latest updates.
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# Copyright (C) Raymond Hettinger, MIT license
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Jelmer Vernooij