Basic example of using fsspec explaining some quirks on porting from regular Python I/O

catfsspec.py

import sys, fsspec
with fsspec.open(sys.argv[1], 'rt') as f: # must pass 'rt' explicitly, as in fsspec the default mode is 'rb'
    print(f.read()) # msut use context manager as in fsspec the result of fsspec.open(...) does not have method read()

# echo world > hello.txt
# python catfsspec.py hello.txt
# python catfsspec.py file://hello.txt
# python catfsspec.py s3://mybucket/hello.txt

lsfsspec.py

import sys, fsspec
path = sys.argv[1]
listdir = fsspec.filesystem(path.split('://')[0] if '://' in path else 'file').ls # from os import listdir
print(listdir(path))

# python lsfsspec.py .
# python lsfsspec.py file://.
# python lsfsspec.py s3://mybucket/