[Tutor] Escaping globs for glob.iglob()

[Ray Jones]

On 08/20/2012 11:05 PM, Peter Otten wrote:
> Ray Jones wrote:
>
>> The code:
>>
>>   curDir = os.getcwd()
>>   znDir = shutil.abspath('../')
>>   baseDir = shutil.abspath('../../')
>>
>>   Files = glob.iglob(os.path.join(znDir, '*'))
>>   print Files
>>  
>>   for moveFile in Files:
>>     print moveFile
>>     shutil.move(moveFile, curDir)
>>
>> Nothing happens. The 'print...moveFile' never happens, even though print
>> Files shows it to be an iglob generator object.
>>
>> After reading over the glob docs and working the directories backward
>> manually, I realized that one of the directory names in the znDir path
>> begins with '[1st]'. According to the docs, glob is apparently seeing
>> that as a character range. No problem, I'll simply escape the '[' and
>> ']' with backslashes.  I used:
>>
>> znDir = znDir.replace('[', '\[')
>> and then
>> znDir = znDir.replace(']', '\]')
>>
>> No such luck. Glob still does not recognize the file glob in znDir/*.
>> Later in the code I will be using creating symbolic links, and I wish to
>> use the absolute path rather than the relative path.
>>
>> Any idea of how to sanitize this path so that I can get glob to work?
> Try
>
> znDir = znDir.replace("[", "[[]")
That never occurred to me. Excellent.
> Alternatively use os.listdir(znDir):
>
> [os.path.join(znDir, name) for name in os.listdir(znDir)]
I've actually used this similarly in the past. I don't know why I got
hung up on glob! ;)
> For a non-trivial file pattern:
>
> pattern = "*tmp*.py"
> files = [os.path.join(znDir, name) for name in 
>  fnmatch.filter(os.listdir(znDir), pattern)]
I looked at fnmatch.filter and didn't see how I could use it in this
instance - it's crystal clear now.

Thanks for the help. I think it's going to work now!


Ray