Question

我的问题是关于在Python中保存变量的值。更具体地说，我有两个不同的脚本，用两种不同的方式计算相同的东西。我想要做的是比较从两个脚本返回的变量的值。所以我想知道我是否可以运行第一个脚本，保存我的一个变量的值（比如一个矩阵V），然后运行第二个脚本并比较第二个脚本计算的同一个变量的值。

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Answer 1

就像@claymore在评论中所说，这可以用泡菜来完成。您将每个变量存储到pickle中，然后从比较脚本中获取pickle对象。

下面是一个例子

<强> script_a.py

# Save a dictionary into a pickle file.
import pickle

def funca():
    favorite_color = { "lion": "yellow", "kitty": "red" }
    with open("a.pickle","wb") as f:
        pickle.dump( favorite_color, f)

funca()

<强> script_b.py

# Save a dictionary into a pickle file.
import pickle

def funcb():
    favorite_color = { "lion": "blue", "kitty": "orange" }
    with open("b.pickle","wb") as f:
        pickle.dump( favorite_color, f)

funcb()

<强> compare.py

# Load the dictionary back from the pickle file.
import pickle
import os

os.system("python script_a.py")
os.system("python script_b.py")

a_fav = pickle.load(open( "a.pickle", "rb" ))
b_fav = pickle.load(open( "b.pickle", "rb" ))

print "script 1 had favorite = ", a_fav
print "script 2 had favorite = ", b_fav

来源：https://wiki.python.org/moin/UsingPickle

在Python中保存变量

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