CSV module, DictReader problem (bug?)

[Steve Holden]

John Machin wrote:
> Tom Plunket wrote:
> 
>>John Machin wrote:
>>
>>
>>>If you were to write 'c:\temp\book1.csv', it would blow up ... because
>>>\t -> tab and \b -> backspace. Get into the habit of *always* using raw
>>>strings r'C:\Temp\Book1.csv' for Windows file names (and re patterns).
>>>You could use double backslashing 'C:\\Temp\\Book1.csv' but it's
>>>uglier.
>>
>>...alternatively you can just use 'unix slashes', e.g.
>>'c:/temp/book1.csv', since those work just fine 'cause the Windows
>>APIs deal with them properly.
> 
> 
> Not all APIs do the right thing. If you fire up the cmd.exe shell and
> feed it slashes as path separators, it barfs. Example:
>     C:\junk>dir c:/junk/*.bar
>     Invalid switch - "junk".
> Hence the advice to use rawstrings with backslashes -- they work under
> all circumstances.
> 
The command shell is not an API.

regards
  Steve
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