74 lines
2.3 KiB
Python
74 lines
2.3 KiB
Python
#
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# Copyright (c) 2005 Dima Dorfman.
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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__all__ = ['compose', 'fastcut']
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__revision__ = '$Dima: pylib/functools/functools.py,v 1.2 2005/08/22 07:05:22 dima Exp $'
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def compose(*args):
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if len(args) < 1:
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raise TypeError, 'compose expects at least one argument'
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fs = args[-2::-1]
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g = args[-1]
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def composecall(*args, **kw):
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res = g(*args, **kw)
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for f in fs:
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res = f(res)
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return res
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return composecall
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def fastcut(*sargs, **skw):
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try:
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fun = sargs[0]
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except IndexError:
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raise TypeError, 'fastcut requires at least one argument'
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sargs = sargs[1:]
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def fastcutcall(*args, **kw):
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rkw = skw.copy()
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rkw.update(kw)
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return fun(*(sargs + args), **rkw)
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return fastcutcall
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for x in __all__:
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globals()['py_%s' % x] = globals()[x]
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del x
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try:
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import _functools
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except ImportError:
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pass
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else:
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for x in __all__:
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globals()['c_%s' % x] = globals()[x] = getattr(_functools, x)
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del x
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