Concatenating files in order

[MRAB]

On 2017-05-23 21:16, Mahmood Naderan via Python-list wrote:
>>Yup.  Make a list of all the file names, write a key function that 
>>extracts the numbery bits, sort the list based on that key function, and 
>>go to town.
>>
>>Alternatively, when you create the files in the first place, make sure 
>>to use more leading zeros than you could possibly need. 
>>xxx_chunk_000001 sorts less than xxx_chunk_000010.
> 
> 
> 
> 
> So, if I write
> 
> import glob;
> for f in glob.glob('*chunk*'):
>        print(f)
> 
> it will print in order. Is that really sorted or it is not guaranteed?
> 
They are sorted on Windows, but not on Linux. (And even when they _are_ 
sorted, they might not be stored the way _you_ want them to be!)

It's best to assume that they aren't sorted.