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- open_file(path_arg, mode='r')¶
Decorator to ensure clean opening and closing of files.
path_arg : int
Location of the path argument in args. Even if the argument is a named positional argument (with a default value), you must specify its index as a positional argument.
mode : str
String for opening mode.
_open_file : function
Function which cleanly executes the io.
Decorate functions like this:
@open_file(0,'r') def read_function(pathname): pass @open_file(1,'w') def write_function(G,pathname): pass @open_file(1,'w') def write_function(G, pathname='graph.dot') pass @open_file('path', 'w+') def another_function(arg, **kwargs): path = kwargs['path'] pass