micropython-lib/pickle/pickle.py

HIGHEST_PROTOCOL = 0

def dump(obj, f, proto=0):
    f.write(repr(obj))

def dumps(obj, proto=0):
    return repr(obj)

def load(f):
    s = f.read()
    return loads(s)

def loads(s):
    d = {}
    if "(" in s:
        qualname = s.split("(", 1)[0]
        if "." in qualname:
            pkg = qualname.rsplit(".", 1)[0]
            mod = __import__(pkg)
            d[pkg] = mod
    return eval(s, d)
pickle: Add dummy HIGHEST_PROTOCOL, accept dummy proto in dump, dumps. For compatibility with CPython. These are probably not good for low-resource ports, but for them we may need to create upickle. 2017-10-22 16:50:20 +00:00			`HIGHEST_PROTOCOL = 0`

			`def dump(obj, f, proto=0):`
pickle: Add trivial pickle implementation using repr()/exec(). 2014-05-01 07:47:56 +00:00			`f.write(repr(obj))`

pickle: Add dummy HIGHEST_PROTOCOL, accept dummy proto in dump, dumps. For compatibility with CPython. These are probably not good for low-resource ports, but for them we may need to create upickle. 2017-10-22 16:50:20 +00:00			`def dumps(obj, proto=0):`
pickle: Add trivial pickle implementation using repr()/exec(). 2014-05-01 07:47:56 +00:00			`return repr(obj)`

			`def load(f):`
			`s = f.read()`
			`return loads(s)`

			`def loads(s):`
			`d = {}`
pickle: Very rough implementation of pickle loads from imported modules. Allows to implement minimal pickling for datetime objects. 2017-11-11 22:34:04 +00:00			`if "(" in s:`
			`qualname = s.split("(", 1)[0]`
			`if "." in qualname:`
			`pkg = qualname.rsplit(".", 1)[0]`
			`mod = __import__(pkg)`
			`d[pkg] = mod`
pickle: Replace exec() with eval(), smaller surface for security issues. 2018-01-21 12:42:49 +00:00			`return eval(s, d)`