compress

data compress utility module.

abbreviation.

• f = file
• s = str
• b = bytes
• p = path
• r = read
• w = write

dataIO.compress.compress_str(s)

use zip and base64 encoding to compress arbitrary utf-8 string to a shorter utf-8 string.

1. str -> utf-8 bytes
2. utf-8 bytes — zip compress —> bytes
3. bytes -> urlsafe_b64encode bytes
4. urlsafe_b64encode bytes -> str

dataIO.compress.decompress_str(s)

opposite of compress_str().

1. str -> utf-8 bytes
2. utf-8 bytes -> b64 decode bytes
3. urlsafe_b64decode bytes — zip decompress —> bytes
4. bytes -> str