pickle

Pickling unpicklable objects

≡放荡痞女 提交于 2020-04-13 05:32:48
问题 I am making a drawing program with pygame in which I want to give the user an option of saving the exact state of the program and then reloading it at a later time. At this point I save a copy of my globals dict and then iterate through, pickling every object. There are some objects in pygame that cannot be pickled, but can be converted into strings and pickled that way. My code is set up to do this, but some of these unpicklable objects are being reached by reference. In other words, they

python基础总结

﹥>﹥吖頭↗ 提交于 2020-04-12 18:37:15
目录 第一章 python基础 初识 *的魔术用法: 格式化输出(3.6版本之后) 编码 数据类型 序列化 软件开发规范 str list tuple 字典 set 正则表达式 代码块、缓存机制 深浅copy 文件的操作 函数 命称空间 迭代器 生成器 递归函数 内置函数 闭包、装饰器 带参数的装饰器 自定义模块 常用模块 random模块 time模块 datetime模块 os模块 sys模块 json模块 pickle模块 hashlib模块 collections模块 re模块 shutil模块 logging模块 第二章 面向对象 第一章 python基础 初识 cpu 内存 硬盘 操作系统 cpu:计算机的运算和计算中心,相当于人类大脑。 ​ 内存:暂时存储数据,临时加载数据应用程序,运行速度快,高铁,断电即消失,造价很高。 ​ 硬盘:磁盘,长期存储数据。 ​ 操作系统:一个软件,连接计算机的硬件与所有软件之间的一个软件。 python的编程语言分类 编译型:将代码一次性全部编译成二进制,然后再执行。优点:执行效率高。缺点:开发效率低,不能跨平台。代表语言:C 解释型:逐行解释成二进制,逐行运行。优点:开发效率高,可以跨平台。缺点:执行效率低。代表语言:python。 python的种类 Cpython:官方推荐解释器。可以转化成C语言能识别的字节码。 Jpython:

python基础总结

流过昼夜 提交于 2020-04-09 19:07:31
目录 第一章 python基础 初识 *的魔术用法: 格式化输出(3.6版本之后) 编码 数据类型 序列化 软件开发规范 str list tuple 字典 set 代码块、缓存机制 深浅copy 文件的操作 函数 命称空间 迭代器 生成器 内置函数 闭包、装饰器 自定义模块 常用模块 random模块 time模块 datetime模块 os模块 sys模块 json模块 pickle模块 hashlib模块 collections模块 第一章 python基础 初识 cpu 内存 硬盘 操作系统 cpu:计算机的运算和计算中心,相当于人类大脑。 ​ 内存:暂时存储数据,临时加载数据应用程序,运行速度快,高铁,断电即消失,造价很高。 ​ 硬盘:磁盘,长期存储数据。 ​ 操作系统:一个软件,连接计算机的硬件与所有软件之间的一个软件。 python的编程语言分类 编译型:将代码一次性全部编译成二进制,然后再执行。优点:执行效率高。缺点:开发效率低,不能跨平台。代表语言:C 解释型:逐行解释成二进制,逐行运行。优点:开发效率高,可以跨平台。缺点:执行效率低。代表语言:python。 python的种类 Cpython:官方推荐解释器。可以转化成C语言能识别的字节码。 Jpython: 可以转化成Java语言能识别的字节码。 Ironpython:可以转化成.net语言能识别的字节码

Error Pickling in Python: io.UnsupportedOperation: read

核能气质少年 提交于 2020-04-08 08:55:50
问题 I am trying to learn how to pickle and save an object in python. However, when I use the sample code below I get the following error: io.UnsupportedOperation: read which traces back to favorite_color = pickle.load(f_myfile) . I cannot find a good explanation of this particular error. What am I doing wrong and how do I correct it? import pickle # or import cPickle as pickle # Create dictionary, list, etc. favorite_color = { "lion": "yellow", "kitty": "red" } # Write to file f_myfile = open(

业界首个视频识别与定位工具集PaddleVideo重磅更新 | 飞桨PaddlePaddle升级解读

和自甴很熟 提交于 2020-04-07 03:09:05
本文作者:杨蕊1002 导读:飞桨(PaddlePaddle)致力于让深度学习技术的创新与应用更简单。7月初,随着Paddle Fluid 1.5版本的发布,国内业界首个视频识别与定位工具集PaddleVideo也迎来了重磅更新。PaddleVideo在实际工业界可以形成很多具体应用,包括:视频精彩片段预测、关键镜头定位、视频剪辑等任务,例如定位NBA篮球赛视频中扣篮镜头,电视剧中的武打镜头等。如下图所示: 本文末尾,为广大算法和开发同学准备了PaddleVideo模型实战的应用案例,视频剪辑、素材拼接和标题生成工作完全是程序模型自动完成的,极大地减轻了人力剪辑的工作量,效果也还不错。不过,在看具体模型具体应用之前,让我们可以先来了解一下PaddleVideo。 1. PaddleVideo是什么? PaddleVideo是飞桨在计算机视觉领域为用户提供的模型库PaddleCV中的视频识别与定位部分的模型库。PaddleVideo的全部模型都是开源的,用户可以一键式快速配置模型完成训练和评测。 PaddleVideo目前视频分类和动作定位模型包括: 2. 重磅更新内容详解 本次重磅更新要点如下: 增加动作定位模型C-TCN,该模型是2018年ActivityNet夺冠方案。 增加已发布的模型骨干网络,Non-local模型增加ResNet101和l3d网络结构

python pickle模块

痴心易碎 提交于 2020-04-06 21:49:14
python pickle模块 觉得有用的话,欢迎一起讨论相互学习~ pickle 保存 pickle是python内置的一个模块,能够将python中的数据,变量等压缩/保存/到pickle类型的二进制文件中。(像matlab中的mat文件)很多数据集本身就会保存成pickle模式以方便炼丹师提取。 示例 import pickle a_dict = {'da': 111, 2: [23,1,4], '23': {1:2,'d':'sad'}} # pickle a variable to a file file = open('pickle_example.pickle', 'wb') pickle.dump(a_dict, file) file.close() wb 是以写的形式打开 ‘pickle_example.pickle’ 这个文件, 然后 pickle.dump 你要保存的东西去这个打开的 file. 最后关闭 file 你就会发现你的文件目录里多了一个 ‘pickle_example.pickle’ 文件, 这就是那个字典了. pickle 提取 提取的时候相对简单点, 同样我们以读的形式打开那个文件, 然后 load 进一个 python 的变量. # reload a file to a variable with open('pickle_example

Is it possible to get Mask-RCNN's model.pkl file from COLAB notebook ,from a train Tensorflowflow model?

Deadly 提交于 2020-03-21 07:00:53
问题 I Got a notebook link to remove the background of objects using Mask R-CNN. basically I want to remove background from an image, which this model (TensorFlow model I guess ), exactly doing what I want. now I want a ".pkl" file from this model, to create a WEB API using Flask. - --->((here this youtube tutorial has shown exactly how to get a .pkl file from a train model.)) how Can I get this model "pkl" file from the colab notebook working model? Is it even possible to get a model from COLAB

python 结构.

≯℡__Kan透↙ 提交于 2020-03-19 16:50:43
3 月,跳不动了?>>> Be careful with exec and eval in Python written on Tuesday, February 1, 2011 One of the perceived features of a dynamic programming language like Python is the ability to execute code from a string. In fact many people are under the impression that this is the main difference between something like Python and C#. That might have been true when the people compared Python to things like C. It's certainly not a necessarily a feature of the language itself. For instance Mono implements the compiler as a service and you can compile C# code at runtime, just like Python compiles code at

What information about device does cookie store?

夙愿已清 提交于 2020-03-16 09:52:47
问题 I'm using selenium to collect cookies, and here's the question: does cookies store information about selenium? 回答1: You can check the cookies list by driver.manage().getCookies(); Return type is Set <Cookies>. Hope this will help. 回答2: No , cookies doesn't store information about Selenium . Cookies As per the article Privacy Concerns on Cookies, cookies are harmless. In it's basic form, cookies are simple uncompiled text files that help coordinate the remote website servers and your browser

Error reading “pickle” file, no module named 'Data'

和自甴很熟 提交于 2020-03-16 07:41:57
问题 I tried to read pickle file using Anaconda Navigator and have the following script. import pickle import sys, os with open('pickle1', 'rb') as fp: data_new = pickle.load(fp) After running the window I get the following error window. --------------------------------------------------------------------------- ModuleNotFoundError Traceback (most recent call last) <ipython-input-4-047bee0f1247> in <module>() 3 4 with open('pickle1', 'rb') as fp: ----> 5 data_new = pickle.load(fp)