mk, 18.02.2010 12:12:
> I'm trying to get print_internal_date become a static method AND to
> refer to it in a class attribute 'tagdata' dict.
>
> class PYFileInfo(FileInfo):
> 'python file properties'
>
> @staticmethod
> def print_internal_date(filename):
> f = open(filename + 'c', "rb")
> data = f.read(8)
> mtime = struct.unpack("<i", data[4:])
> return time.asctime(time.gmtime(mtime[0]))
>
> tagdata = {'compiled_fname': lambda x: x + 'c',
> 'size': os.path.getsize,
> 'internal_date': print_internal_date
> }
You can 'unroll' the decorator like this:
class PYFileInfo(FileInfo):
def print_internal_date(filename):
f = open(filename + 'c', "rb")
data = f.read(8)
mtime = struct.unpack("<i", data[4:])
return time.asctime(time.gmtime(mtime[0]))
tagdata = {'compiled_fname': lambda x: x + 'c',
'size': os.path.getsize,
'internal_date': print_internal_date
}
print_internal_date = staticmethod(print_internal_date)
You can also define the function outside of the class and then assign it to
a class attribute, i.e.
def _print_internal_date(filename):
f = open(filename + 'c', "rb")
data = f.read(8)
mtime = struct.unpack("<i", data[4:])
return time.asctime(time.gmtime(mtime[0]))
class PYFileInfo(FileInfo):
print_internal_date = _print_internal_date
tagdata = {'compiled_fname': lambda x: x + 'c',
'size': os.path.getsize,
'internal_date': _print_internal_date
}
Quite likely, there are other ways to achieve what you want more cleanly,
but without more background on your intended use case, it's hard to give
better advice.
Stefan
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