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Open, lock, and unlock a file using fcntl.lockf.
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Open the file and lock it. Args: timeout: float, How long to try to lock for. delay: float, How long to wait between retries Raises: AlreadyLockedException: if the lock is already acquired. IOError: if the open fails. CredentialsFileSymbolicLinkError if the file is a symbolic link.
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Close and unlock the file using the fcntl.lockf primitive.
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| Generated by Epydoc 3.0.1 on Thu Sep 6 12:25:05 2012 | http://epydoc.sourceforge.net |