pickle

Pickle class definition in module with dill

做~自己de王妃 提交于 2020-08-08 04:15:10
问题 My module contains a class which should be pickleable, both instance and definition I have the following structure: MyModule |-Submodule |-MyClass In other questions on SO I have already found that dill is able to pickle class definitions and surely enough it works by copying the definition of MyClass into a separate script and pickling it there, like this: import dill as pickle class MyClass(object): ... instance = MyClass(...) with open(..., 'wb') as file: pickle.dump(instance, file)

How to serialize a jira issue object in Python?

泪湿孤枕 提交于 2020-08-07 17:04:38
问题 I'm using the jira Python library for fetching issues from a jira server. In order to reduce the server load and network traffic, I would like to store the search_issues() result locally in serialized form. If most issues would be available locally, I would need to query only these issues which were updated recently. Unfortunately I ran into a problem, it seems a jira issue is not picklable. I always get the following error when calling dumps() for an issue: _pickle.PicklingError: Can't

How to serialize a jira issue object in Python?

纵然是瞬间 提交于 2020-08-07 17:04:20
问题 I'm using the jira Python library for fetching issues from a jira server. In order to reduce the server load and network traffic, I would like to store the search_issues() result locally in serialized form. If most issues would be available locally, I would need to query only these issues which were updated recently. Unfortunately I ran into a problem, it seems a jira issue is not picklable. I always get the following error when calling dumps() for an issue: _pickle.PicklingError: Can't

一颗韭菜的自我修养:用Python分析下股市,练练手

老子叫甜甜 提交于 2020-08-06 07:52:44
  机器之心报道    编辑:魔王、陈萍       一颗韭菜的自我修养。   股市跌宕起伏。7 月初 A 股飙升,股票瞬间成为大家的热门讨论话题,「现在入场还来得及吗?」几乎成为新的问候语。   然而,经历了连续近 10 个交易日的快牛行情后,上证指数上涨势头放缓。这是牛市,还是熊市?怎么在趋势之中腾挪转移,抓住时机下场?抑或是按兵不动,放长线钓大鱼?   不要妄下定论。毕竟股市有风险,入市需谨慎。那么,有没有什么方法可以帮助你做决策呢?   最近,一位常年研究股票系统的开发者 pythonstock 用 Python 写了一个股票分析系统,发布数天就获得了不少关注。   于是我们就推荐给大家,既能学习 python 又能练习炒股。但正如项目作者所说,「本项目只能用于 Python 代码学习,股票分析,投资失败亏钱不负责,不算 BUG。」如果真亏了,我们也不背锅呀,毕竟大家都是韭菜。      pythonstock 的项目页面   总之,分析得准不准先不说,我们先来偷个师,看看这个用 Python 代码进行股票分析的项目到底是怎么实现的吧。    PythonStock:一个用 Python 写成的股票分析系统   根据 GitHub 页面介绍,该项目是基于 Python 的 pandas、tushare、bokeh、tornado、stockstats、ta-lib

使用Kubeflow构建机器学习流水线

做~自己de王妃 提交于 2020-08-04 22:04:38
在 此前的文章 中,我已经向你介绍了Kubeflow,这是一个为团队设置的机器学习平台,需要构建机器学习流水线。 在本文中,我们将了解如何采用现有的机器学习详细并将其变成Kubeflow的机器学习流水线,进而可以部署在Kubernetes上。在进行本次练习的时候,请考虑你该如何将现有的机器学习项目转换到Kubeflow上。 我将使用Fashion MNIST作为例子,因为在本次练习中模型的复杂性并不是我们需要解决的主要目标。对于这一简单的例子,我将流水线分为3个阶段: Git clone代码库 下载并重新处理训练和测试数据 训练评估 当然,你可以根据自己的用例将流水线以任意形式拆分,并且可以随意扩展流水线。 获取代码 你可以从Github上获取代码: % git clone https://github.com/benjamintanweihao/kubeflow-mnist.git 以下是我们用来创建流水线的完整清单。实际上,你的代码很可能跨多个库和文件。在我们的例子中,我们将代码分为两个脚本, preprocessing.py 和 train.py 。 from tensorflow import keras import argparse import os import pickle def preprocess(data_dir: str): fashion_mnist

How can you Pickle multiple objects in one file? [duplicate]

我与影子孤独终老i 提交于 2020-08-01 16:37:26
问题 This question already has answers here : Saving and loading multiple objects in pickle file? (6 answers) Closed last year . In my case, I wish to pickle (using pickle.dump() ) two separate lists to a file, then retrieve these from a separate file, however when using pickle.load() I have struggled finding where one list ends and the next begins as I simply don't know how to pickle.dump() them in a manner that makes them easy to retrieve, even after looking through documentation. 回答1: pickle

How can you Pickle multiple objects in one file? [duplicate]

拥有回忆 提交于 2020-08-01 16:36:53
问题 This question already has answers here : Saving and loading multiple objects in pickle file? (6 answers) Closed last year . In my case, I wish to pickle (using pickle.dump() ) two separate lists to a file, then retrieve these from a separate file, however when using pickle.load() I have struggled finding where one list ends and the next begins as I simply don't know how to pickle.dump() them in a manner that makes them easy to retrieve, even after looking through documentation. 回答1: pickle

BuuCTF难题详解| Misc | 我爱Linux

只愿长相守 提交于 2020-07-26 22:09:21
栏目介绍 这个栏目是负责写,比较难的Misc,日常记录,如果有错误请及时指出。谢谢 Python 3.7版本 脚本临时学的可能没有那么完美,自己码出来还有很大问题,请见谅。 BuuCTF难题详解| Misc | 我爱Linux 这一题目研究的比较久,现在详细的说一下: 本题要点就是python 序列化内容的存入。 至于序列化是啥: Python中的Pickle模块实现了基本的数据序列与反序列化。 一、dump()方法 pickle.dump(obj, file, [,protocol]) 注释:序列化对象,将对象obj保存到文件file中去。参数protocol是序列化模式,默认是0(ASCII协议,表示以文本的形式进行序列化),protocol的值还可以是1和2(1和2表示以二进制的形式进行序列化。其中,1是老式的二进制协议;2是新二进制协议)。file表示保存到的类文件对象,file必须有write()接口,file可以是一个以’w’打开的文件或者是一个StringIO对象,也可以是任何可以实现write()接口的对象。 二、load()方法 pickle.load(file) 注释:反序列化对象,将文件中的数据解析为一个python对象。file中有read()接口和readline()接口 转自:https://blog.csdn.net/Yangxing_ch

I can't load my model because I can't put a PosixPath

守給你的承諾、 提交于 2020-07-22 05:46:05
问题 I'm setting up a script and I need to use some functions from fast-ai package. The fact is that I'm on Windows and when I define my paths, the function from fast-ai named load_learner can't load the model. I've tried to change the function into the package as: state = pickle.load(open(str(path) + '/' + str(fname), 'rb')) instead of: state = pickle.load(open(path/fname, 'rb')) but I obtain this error: File "lib\site-packages\fastai\basic_train.py", line 462, in load_learner state = pickle.load

Pickle , read in data , unsupported pickle protocol: 3 python 2.7

隐身守侯 提交于 2020-07-20 09:53:54
问题 Beginner here, want to read in data with the file ending p. My code looks like this : import pickle training_file = "/home/sk/CarND-Traffic-Sign-Classifier-Project/train.p" testing_file = "/home/sk/CarND-Traffic-Sign-Classifier-Project/test.p" with open(training_file, mode='rb') as f: train = pickle.load(f) with open(testing_file, mode='rb') as f: test = pickle.load(f) I get the following error: ValueError: unsupported pickle protocol: 3 Can someone point out how i can fix it, either changing