python

How to mock os.listdir to pretend files and directories in Python?

由 拥有回忆 提交于 2021-02-20 05:49:25
问题 I have a proprietary repository format and I'm trying to develop a Python module to process these repositories. Repo format goes as: /home/X/ | + alpha/ | + beta/ | + project.conf Here, X is a project. alpha and beta are folders inside this project and they represent groups in this project. A group is a container in this repo and what it represents is really not relevant for this question. The repo X also has files in its root level; project.conf is an example of such a file. I have a class

Can't change activations in existing Keras model

由 梦想与她 提交于 2021-02-20 05:44:10
问题 I have a normal VGG16 model with relu activations, i.e. def VGG_16(weights_path=None): model = Sequential() model.add(ZeroPadding2D((1, 1),input_shape=(3, 224, 224))) model.add(Convolution2D(64, 3, 3, activation='relu')) model.add(ZeroPadding2D((1, 1))) model.add(Convolution2D(64, 3, 3, activation='relu')) model.add(MaxPooling2D((2, 2), strides=(2, 2))) [...] model.add(Flatten()) model.add(Dense(4096, activation='relu')) model.add(Dropout(0.5)) model.add(Dense(4096, activation='relu')) model

jumpserver_跳板机实操

由 孤街醉人 提交于 2021-02-20 05:42:42
首先，jumpserver是什么呢？ Jumpserver 是一款由Python编写开源的跳板机(堡垒机)系统，实现了跳板机应有的功能。基于ssh协议来管理，客户端无需安装agent。 特点： 完全开源，GPL授权 Python编写，容易再次开发 实现了跳板机基本功能，认证、授权、审计 集成了Ansible，批量命令等 支持WebTerminal Bootstrap编写，界面美观 自动收集硬件信息 录像回放 命令搜索 实时监控 批量上传下载 jumpserver 3.0 安装 相对于 jumpserver 2.0 版本，在新的版本 3.0 中取消了LDAP授权，取而代之的是ssh进行推送；界面也有所变化，功能更完善，安装更简单，不像 2.0 的版本，难住了好多人。下面通过两台主机来搭建 jumpserver堡垒机！ Centos 6.5 x86_64 关闭 iptables，关闭 selinux jumpserver：192.168.1.200 clients：192.168.1.210 ps：操作只针对 jumpserver，clients 不会进行操作，只是环境需求。 一、安装依赖包 yum -y install epel-release yum clean all && yum makecache yum -y update yum -y install git python

How to download a clip of an YouTube video with pytube?

由 二次信任 提交于 2021-02-20 05:24:06
问题 I've been trying to download certain portions of YouTube video. The long way is to download the video then extract the certain portion of it. But when it comes to a big dataset with long videos, the method is costly. The code works. But downloads the entire video instead of the certain portion. from pytube import YouTube YouTube('https://www.youtube.com/embed/yf8Ub90OWFM?start=15&end=25').streams.first().download() Expected result: 10 second video in the time interval of 15-25 seconds. 回答1:

How to download a clip of an YouTube video with pytube?

由 旧城冷巷雨未停 提交于 2021-02-20 05:24:05
问题 I've been trying to download certain portions of YouTube video. The long way is to download the video then extract the certain portion of it. But when it comes to a big dataset with long videos, the method is costly. The code works. But downloads the entire video instead of the certain portion. from pytube import YouTube YouTube('https://www.youtube.com/embed/yf8Ub90OWFM?start=15&end=25').streams.first().download() Expected result: 10 second video in the time interval of 15-25 seconds. 回答1:

mysql--视图,触发器,事务,存储过程

由 爷，独闯天下 提交于 2021-02-20 05:20:05
一.视图 　　视图是一个虚拟表（非真实存在），是跑到内存中的表，真实表是硬盘上的表，怎么就得到了虚拟表，就是你查询的结果，只不过之前我们查询出来的虚拟表，从内存中取出来显示在屏幕上，内存中就没有了这些表的数据，但是下次我要是想用这个虚拟表呢，没办法，只能重新查一次，每次都要重新查。其本质是【根据SQL语句获取动态的数据集，并为其命名】，用户使用时只需使用【名称】即可获取结果集，可以将该结果集当做表来使用。如果我们想查询一些有关联的表，比如我们前面的老师学生班级什么的表，我可能需要几个表联合查询的结果，但是这几张表在硬盘上是单独存的，所以我们需要通过查询的手段，将这些表在内存中拼成一个虚拟表，然后是不是我们再基于虚拟表在进行进一步的查询，然后我们如果以后想重新再查一下这些关系数据，还需要对硬盘上这些表进行再次的重新加载到内容，联合成虚拟表，然后再筛选等等的操作，意味着咱们每次都在写重复的sql语句，那有没有好的方法啊，其实很简单，我们把重复用的这些sql逻辑封装起来，然后下次使用的时候直接调用这个封装好的操作就可以了，这个封装起来的操作就类似我们下面要说的视图 　　为什么要用视图：使用视图我们可以把查询过程中的临时表摘出来，保存下来，用视图去实现，这样以后再想操作该临时表的数据时就无需重写复杂的sql了，直接去视图中查找即可，但视图有明显地效率问题，并且视图是存放在数据库中的

Intersect of two lines by begin and end points

由 我怕爱的太早我们不能终老 提交于 2021-02-20 05:18:34
问题 I have a fairly basic question here. I want to find if two lines on a 1-D plane intersect. I know of two simple ways to solve this, but I wanted to know if Python has a more elegant way to solve this? Ex: x = [1, 10] # 1 = begin, 10 = end y = [15, 20] z = [5, 12] #Method 1: Works. Is quick. Lots of typing. def is_intersect_1(a, b): bool_check = False if a[0] <= b[0] <= a[1] or \ a[0] <= b[1] <= a[1] or \ b[0] <= a[0] <= b[1] or \ b[0] <= a[1] <= b[1]: bool_check = True return bool_check is

Intersect of two lines by begin and end points

由 落花浮王杯 提交于 2021-02-20 05:18:08
问题 I have a fairly basic question here. I want to find if two lines on a 1-D plane intersect. I know of two simple ways to solve this, but I wanted to know if Python has a more elegant way to solve this? Ex: x = [1, 10] # 1 = begin, 10 = end y = [15, 20] z = [5, 12] #Method 1: Works. Is quick. Lots of typing. def is_intersect_1(a, b): bool_check = False if a[0] <= b[0] <= a[1] or \ a[0] <= b[1] <= a[1] or \ b[0] <= a[0] <= b[1] or \ b[0] <= a[1] <= b[1]: bool_check = True return bool_check is

Find a tag using text it contains using BeautifulSoup

由 荒凉一梦 提交于 2021-02-20 05:16:37
问题 I am trying to webscrape some parts of this page: https://markets.businessinsider.com/stocks/bp-stock using BeautifulSoup to search for some text contained in h2 title of tables when i do: data_table = soup.find('h2', text=re.compile('RELATED STOCKS')).find_parent('div').find('table') It correctly get the table I am after. When I try to get the table "Analyst Opinion" using the similar line, it returns None: data_table = soup.find('h2', text=re.compile('ANALYST OPINIONS')).find_parent('div')

Find a tag using text it contains using BeautifulSoup

由 删除回忆录丶 提交于 2021-02-20 05:16:06
问题 I am trying to webscrape some parts of this page: https://markets.businessinsider.com/stocks/bp-stock using BeautifulSoup to search for some text contained in h2 title of tables when i do: data_table = soup.find('h2', text=re.compile('RELATED STOCKS')).find_parent('div').find('table') It correctly get the table I am after. When I try to get the table "Analyst Opinion" using the similar line, it returns None: data_table = soup.find('h2', text=re.compile('ANALYST OPINIONS')).find_parent('div')
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