Search code examples
pythonpython-3.xfilepathglobpathname

Finding path names with non-consecutive numbers using glob in Python

Is there a way to find file names with numbers that are not consecutive? More specifically, I'm looking to list filenames with these numbers included:

path +'*.s201701*.nc'
path +'*.s201801*.nc'
path +'*.s201901*.nc'
path +'*.s201702*.nc'
path +'*.s201802*.nc'
path +'*.s201902*.nc'
path +'*.s201712*.nc'
path +'*.s201812*.nc'
path +'*.s201912*.nc'

I can get the changes in '2017' to '2019' since the numbers are consecutive, but not the '01', '02', '12', because these aren't. This doesn't work:

glob.glob(path +'*.s201[7-9][01,02,12]*.nc'

And this works,

glob.glob(path +'*.s201[7-9][0-1][1-2]*.nc'

but also gives me files in s201*11*.nc, which I don't want. Any tips?

Solution

  • You can't do this with a single glob - the language just isn't sophisticated enough - but you can do it with two:

    glob.glob(path +'*.s201[7-9]0[1-2]*.nc') + glob.glob(path +'*.s201[7-9]12*.nc')