Source code for poets.io.fileformats

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# Author: Thomas Mistelbauer Thomas.Mistelbauer@geo.tuwien.ac.at
# Creation date: 2014-10-02

import os

supported_formats = ['.nc', '.nc4',
                     '.h5',
                     '.tiff', '.tif',
                     '.png', '.jpg', '.jpeg', '.gif']


[docs]def check_supported(filename): """Checks if file is in supported format. Parameters ---------- filename : str Filename or filepath. Returns ------- bool True if supported, False if not. """ return os.path.splitext(filename)[1].lower() in supported_formats
[docs]def select_file(filelist): """Selects a file out of a list of files, based on their extension. Parameters ---------- filelist : list of str List containing filepaths. Returns ------- filename : str Filepath of selected file. Raises ------ IOError : If filelist contains no supported file format. """ extlist = [] for f in filelist: fext = os.path.splitext(f)[1].lower() if fext in supported_formats: extlist.append(supported_formats.index(fext)) else: extlist.append('X') val, idx = min((val, idx) for (idx, val) in enumerate(extlist)) if val == 'X': raise IOError("No valid file format found.") else: return filelist[idx]