class collections.abc.Iterator ABC for classes that provide the __iter__() and __next__() methods. See also the definition of iterator.

inspect.getsourcefile(object) Return the name of the Python source file in which an object was defined. This will fail with a TypeError if the object is a built-in module, class, or function.

class collections.abc.KeysView class collections.abc.ValuesView ABCs for mapping, items, keys, and values views.

min(iterable, *[, key, default]) min(arg1, arg2, *args[, key]) Return the smallest item in an iterable or the smallest of two or more arguments. If one positional argument is provided, it should be an iterable. The smallest item in the iterable is returned. If two or more positional arguments are provided, the smallest of the positional arguments is returned. There are two optional keyword-only arguments. The key argument specifies a one-argument ordering function like that used for list.sort

__eq__(other) This method allows you to compare two Header instances for equality.

set_url(url) Sets the URL referring to a robots.txt file.

pkgutil.find_loader(fullname) Retrieve a PEP 302 module loader for the given fullname. This is a backwards compatibility wrapper around importlib.util.find_spec() that converts most failures to ImportError and only returns the loader rather than the full ModuleSpec. Changed in version 3.3: Updated to be based directly on importlib rather than relying on the package internal PEP 302 import emulation. Changed in version 3.4: Updated to be based on PEP 451

array.typecodes A string with all available type codes.

__callback__ This read-only attribute returns the callback currently associated to the weakref. If there is no callback or if the referent of the weakref is no longer alive then this attribute will have value None.

platform.linux_distribution(distname='', version='', id='', supported_dists=('SuSE', 'debian', 'redhat', 'mandrake', ...), full_distribution_name=1) Tries to determine the name of the Linux OS distribution name. supported_dists may be given to define the set of Linux distributions to look for. It defaults to a list of currently supported Linux distributions identified by their release file name. If full_distribution_name is true (default), the full distribution read from the OS is returned.