diff options
Diffstat (limited to 'Lib/collections/__init__.py')
| -rw-r--r-- | Lib/collections/__init__.py | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/Lib/collections/__init__.py b/Lib/collections/__init__.py index bea811db7f..85b4c3c19a 100644 --- a/Lib/collections/__init__.py +++ b/Lib/collections/__init__.py @@ -356,7 +356,7 @@ _field_template = '''\ {name} = _property(_itemgetter({index:d}), doc='Alias for field number {index:d}') ''' -def namedtuple(typename, field_names, verbose=False, rename=False): +def namedtuple(typename, field_names, *, verbose=False, rename=False, module=None): """Returns a new subclass of tuple with named fields. >>> Point = namedtuple('Point', ['x', 'y']) @@ -396,7 +396,7 @@ def namedtuple(typename, field_names, verbose=False, rename=False): field_names[index] = '_%d' % index seen.add(name) for name in [typename] + field_names: - if type(name) != str: + if type(name) is not str: raise TypeError('Type names and field names must be strings') if not name.isidentifier(): raise ValueError('Type names and field names must be valid ' @@ -437,11 +437,15 @@ def namedtuple(typename, field_names, verbose=False, rename=False): # For pickling to work, the __module__ variable needs to be set to the frame # where the named tuple is created. Bypass this step in environments where # sys._getframe is not defined (Jython for example) or sys._getframe is not - # defined for arguments greater than 0 (IronPython). - try: - result.__module__ = _sys._getframe(1).f_globals.get('__name__', '__main__') - except (AttributeError, ValueError): - pass + # defined for arguments greater than 0 (IronPython), or where the user has + # specified a particular module. + if module is None: + try: + module = _sys._getframe(1).f_globals.get('__name__', '__main__') + except (AttributeError, ValueError): + pass + if module is not None: + result.__module__ = module return result @@ -845,7 +849,7 @@ class Counter(dict): ######################################################################## -### ChainMap (helper for configparser and string.Template) +### ChainMap ######################################################################## class ChainMap(MutableMapping): @@ -972,7 +976,7 @@ class UserDict(MutableMapping): dict = kwargs.pop('dict') import warnings warnings.warn("Passing 'dict' as keyword argument is deprecated", - PendingDeprecationWarning, stacklevel=2) + DeprecationWarning, stacklevel=2) else: dict = None self.data = {} |