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<title>3.32 __builtin__ -- Built-in objects
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<H1><A NAME=
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3.32 <tt class=
"module">__builtin__
</tt> --
<A NAME=
"module-builtin"></A>
This module provides direct access to all `built-in' identifiers of
Python; for example,
<code>__builtin__.open
</code> is the full name for the
built-in function
<tt class=
"function">open()
</tt>. See chapter
<A href=
"builtin.html#builtin">2</A>,
This module is not normally accessed explicitly by most applications,
but can be useful in modules that provide objects with the same name
as a built-in value, but in which the built-in of that name is also
needed. For example, in a module that wants to implement an
<tt class=
"function">open()
</tt> function that wraps the built-in
<tt class=
"function">open()
</tt>,
this module can be used directly:
<div class=
"verbatim"><pre>
f = __builtin__.open(path, 'r')
'''Wrapper around a file that converts output to upper-case.'''
def read(self, count=-
1):
return self._f.read(count).upper()
As an implementation detail, most modules have the name
<code>__builtins__
</code> (note the
"<tt class="character
">s</tt>") made available as part of
their globals. The value of
<code>__builtins__
</code> is normally either
this module or the value of this modules's
<tt class=
"member">__dict__
</tt>
attribute. Since this is an implementation detail, it may not be used
by alternate implementations of Python.
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<span class=
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2.4.2, documentation updated on
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2005.
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