Revision 0e5084ee lib/utils/io.py

b/lib/utils/io.py
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_RANDOM_UUID_FILE = "/proc/sys/kernel/random/uuid"
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def ReadFile(file_name, size=-1):


  		





  
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def ReadFile(file_name, size=-1, preread=None):


  		





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  """Reads a file.


  		





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  @type size: int


  		





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  @param size: Read at most size bytes (if negative, entire file)


  		





  
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  @type preread: callable receiving file handle as single parameter


  		





  
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  @param preread: Function called before file is read


  		





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  @rtype: str


  		





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  @return: the (possibly partial) content of the file


  		





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  """


  		





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  f = open(file_name, "r")


  		





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  try:


  		





  
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    if preread:


  		





  
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      preread(f)


  		





  
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    return f.read(size)


  		





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  finally:


  		





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    f.close()


  		












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