Class FileCache

File cache base class

Instance Methods

__init__(self, filename)

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getValue(self)
Get info associated with file.

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updateValue(self)
Called when file has changed.

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newValue(self)
Called when file is new.

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get(self, update=1)
Get info associated with file.

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_getFileHandle(self, filename=None)
Get file handle for a filename or filehandle instance

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_getAttributes(self, filename=None)
Get file attributes for a file or filehandle

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_warning(self, msg)
Print warning message to stderr, using verbose flag

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Method Details

Get info associated with file.

Usually this is not called directly by the user (use the get() method instead.)

Called when file is new. By default same as updateValue.

Get info associated with file.

Updates cache if needed, then calls getValue. If the update flag is false, simply returns the value without checking to see if it is out-of-date.