find_unique_file Namespace Reference

Functions
	find_unique_file (pattern)
	Helper functions for input file handling.

Function Documentation

find_unique_file()

find_unique_file

(

pattern

)

Helper functions for input file handling.

Definition at line 3 of file find_unique_file.py.

def find_unique_file(pattern):
    "Return a matching file, provided it is unique"
    import glob
    files = glob.glob(pattern)
    
    if not files:
        raise RuntimeError("No '%s' file found" % pattern)
    elif len(files) > 1:
        raise RuntimeError("More than one '%s' file found" % pattern)
    return files[0]