安装环境:pip3 install virtualenv
大师语录:上节课的python替换成python3 ;pip替换成pip3
红色的是说权限不够 不应该安装在系统文件下面
黄色的pip3 install - - upgrade pip3
exit()可退出
pip3 install virtualenvwrapper-win --user --upgrade pip
#最后我输入这个才安装好,显示:
Installing collected packages: pip
Successfully installed pip-21.3.1
搭建与激活虚拟环境:
virtualenv <folder_name>
#bash 也可以使用python3 -m venv <folder_name>创建 ——来自热心弹幕
<folder_name>/bin/activate
设置虚拟环境:
Book-Air ~ % python3 -m venv shi
激活虚拟环境:
Book-Air ~ % shi/bin/activate
zsh: permission denied: shi/bin/activate
改成
-Air ~ % source ./shi/bin/activate
(shi) huaweimatebook16@huaweiMateBook16deMacBook-Air ~ %
安装包(?)colorama:
(shi) Book-Air ~ % pip install colorama --upgrade pip
Collecting pip
Using cached
Successfully installed pip-21.3.1
(shi) huaweimatebook16@huaweiMateBook16deMacBook-Air ~ %
运行一下colorama:
from pip._vendor.colorama import init, Fore
def display(message,is_warning=False):
if is_warning:
print(Fore.RED + message)
else:
print(Fore.BLUE + message)
import helpers
helpers.display('Sample message',True)
from helpers import display
display('sample message')
yeah!
学到了:
How we can work with our own modules, and how we can work external packages, and how we can set-up a virtual environment.Pretty much every application that you're ever going to be creating is going to have some level of requirement for installing packages.
1. set-up a virtual environment
2.set-up a requirements.txt(这次我没设)file
3.list the packages that you want
4.pip install from there
开始难起来了,但也不完全难(狗头)。和之前不同的是你很难完全按照课程得到想要的反馈。不过只要遇到问题不停搜索,问问会编程的大佬,适当改一改,就可以解决啦! 具体原理还没完全搞清楚,有机会再回头看~