danielhao5

How to recover lost Python source code if it's still resident in-memory

I screwed up using git ("git checkout --" on the wrong file) and managed to delete the code I had just written... but it was still running in a process in a docker container. Here's how I got it back, using https://pypi.python.org/pypi/pyrasite/ and https://pypi.python.org/pypi/uncompyle6

Attach a shell to the docker container

Install GDB (needed by pyrasite)

apt-get update && apt-get install gdb

danielhao5

# Union-Find (Disjoint Set Union)
# more information on wiki:
# http://en.wikipedia.org/wiki/Disjoint-set_data_structure

class UF(object):

    def __init__(self, size):
        self.p = [None]*size
        self.rank = [1]*size

danielhao5

import random
import perfplot
from collections import defaultdict, Counter
from itertools import chain
from pyroaring import BitMap


def setup(k):
    lss = [f"list{i}" for i in range(1, k + 1)]
    labels = [f"label{i}" for i in range(1, 101)]

danielhao5

import random
import numpy as np

from numpy.random import default_rng
from itertools import islice


def reservoir_sampling(pop, k):
    reservoir = []
    stream = iter(pop)