slicing the end of a string in a list

Steven D'Aprano steve at REMOVETHIScyber.com.au
Sat Mar 4 00:02:23 EST 2006


On Fri, 03 Mar 2006 16:57:10 +0000, John Salerno wrote:

> Steven D'Aprano wrote:
> 
>> The important term there is BINARY, not large. Many problems *reading*
>> (not opening) binary files will go away if you use 'rb', regardless of
>> whether they are small, medium or large.
> 
> Is 'b' the proper parameter to use when you want to read/write a binary 
> file? I was wondering about this, because the book I'm reading doesn't 
> talk about dealing with binary files.

The interactive interpreter is your friend. Call help(file), and you will
get:

class file(object)
 |  file(name[, mode[, buffering]]) -> file object
 |
 |  Open a file.  The mode can be 'r', 'w' or 'a' for reading (default),
 |  writing or appending.  The file will be created if it doesn't exist
 |  when opened for writing or appending; it will be truncated when
 |  opened for writing.  Add a 'b' to the mode for binary files.

plus extra information. 

Take note that the mode is NOT "b". It is "rb".


-- 
Steven.




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