decode base64 and write to file python

decode-base64-and-write-to-file.py

import os
import base64

files_size_under_1MB = {
    "file_name_1": "file-1_encoded_base64",
    "file_name_1": "file-2_encoded_base64"
    }
for keys in files_size_under_1MB:
    try: os.remove(keys)  # remove the old file
    except: pass
    with open(keys, 'wb') as f:
        f.write(base64.b64decode((files_size_under_1MB[keys])))