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bs4.FeatureNotFound: Couldn't find a tree builder with the features you requested: lxml. Do you need
... and I had the same original error in this post. After I ran the command:
python3 -m pip install lxml
it resolved my problem
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What is the easiest way to get current GMT time in Unix timestamp format?
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python2 and python3
it is good to use time module
import time
int(time.time())
1573708436
you can also use datetime module, but when you use strftime('%s'), but strftime convert time to your local time!
python2
from datetime i...
CMake使用教程 - C/C++ - 清泛网 - 专注C/C++及内核技术
...兴趣的可以试用一下。
准备活动：
（1）安装cmake。
下载地址：http://www.cmake.org/cmake/resources/software.html
根据自己的需要下载相应的包即可，Windows下可以下载zip压缩的绿色版本，还可以下载源代码。
（2）运行cmake的方法。...
ImportError: No module named apiclient.discovery
... python-googleapi python-oauth2client and the command sudo apt-get install python3-googleapi python3-oauth2client. It worked perfect and I prefer this way because I have enough with one package manager.
– Gerard
Jul 28 '19 at 11:45
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浅谈TCP优化 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...1460，所以「cwnd」的初始值是3MSS。
当我们浏览视频或者下载软件的时候，「cwnd」初始值的影响并不明显，这是因为传输的数据量比较大，时间比较长，相比之下，即便慢启动阶段「cwnd」初始值比较小，也会在相对很短的时间...
苹果全球开发者大会：无硬件 iOS 9等三大系统更新 - 资讯 - 清泛网 - 专注C...
...设备的发布正式推出，而面向非开发者的beta版在7月就能下载体验。
苹果在iPad的iOS 9中加入了分屏多任务功能。该功能主要分为三项：SlideOver、Split View和画中画。
为了实现SlideOver，苹果重新设计了双击Home键后出现的任务管理...
python exception message capturing
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@CharlieParker in Python3 write except Exception as e:
– eumiro
Nov 1 '17 at 5:38
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How to pick just one item from a generator?
...ething special in case of end-of-generator.
Note on next() / .next():
In Python3 the .next() method was renamed to .__next__() for good reason: its considered low-level (PEP 3114). Before Python 2.6 the builtin function next() did not exist. And it was even discussed to move next() to the operator...
Installing vim with ruby support (+ruby)
...s look fancy:
vim --version | grep ruby
Should return something like:
-python3 +quickfix +reltime -rightleft +ruby +scrollbind +signs +smartindent
Ruby should have plus now. Another trick to test it - enter vim and hit :ruby 1. Should not fail.
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Importing files from different folder
...ome_file import your_function. Alternatively what works for me is running python3 -m app2.another_folder.another_file from root folder.
– addicted
Dec 16 '19 at 13:23
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