micropython-lib/python-stdlib/pickle/pickle.py

HIGHEST_PROTOCOL = 0


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


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


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


def loads(s):
    d = {}
    s = s.decode()
    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`

all: Run black over all code. Signed-off-by: Jim Mussared <jim.mussared@gmail.com> 2021-05-27 05:50:04 +00:00
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 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))`

all: Run black over all code. Signed-off-by: Jim Mussared <jim.mussared@gmail.com> 2021-05-27 05:50:04 +00:00
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: Module produces and consumes bytes. So, dumps() should return bytes, dump() should be passed binary file, etc. 2018-01-21 12:49:24 +00:00			`return repr(obj).encode()`
pickle: Add trivial pickle implementation using repr()/exec(). 2014-05-01 07:47:56 +00:00
all: Run black over all code. Signed-off-by: Jim Mussared <jim.mussared@gmail.com> 2021-05-27 05:50:04 +00:00
pickle: Add trivial pickle implementation using repr()/exec(). 2014-05-01 07:47:56 +00:00			`def load(f):`
			`s = f.read()`
			`return loads(s)`

all: Run black over all code. Signed-off-by: Jim Mussared <jim.mussared@gmail.com> 2021-05-27 05:50:04 +00:00
pickle: Add trivial pickle implementation using repr()/exec(). 2014-05-01 07:47:56 +00:00			`def loads(s):`
			`d = {}`
pickle: Module produces and consumes bytes. So, dumps() should return bytes, dump() should be passed binary file, etc. 2018-01-21 12:49:24 +00:00			`s = s.decode()`
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)`