一些关于pip和python的操作. 包括基础设置, 换源, 模块相关的. 和一些编译打包等等. 与之前Python代码的不同, 这篇主要是关于 pip 和 python 本身.
1. pip
pip设置清华源
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pip config set global.index-url https://pypi.tuna.tsinghua.edu.cn/simple
查看模块位置
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pip show PySide6
默认pyside designer软链接
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sudo ln -s ~/.local/lib/python3.10/site-packages/PySide6/designer /usr/bin/designer
全局使用一个模块
以pyinstaller为例
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sudo pip install -U pyinstaller
pyinstaller编译
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pyinstaller -F main.py
pyinstaller -D main.py
pyinstaller -D main.py --key password
pyinstaller -i <img.ico> -F main.py
import sys
sys.setrecursionlimit(100000)
2. Python
Python启动参数自带库
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#!/usr/bin/python3
import argparse
def test_for_sys(year, name, body):
print('the year is', year)
print('the name is', name)
print('the body is', body)
parser = argparse.ArgumentParser(description='Test for argparse')
parser.add_argument('--name', '-n', help='name 属性，非必要参数')
parser.add_argument('--year', '-y', help='year 属性，非必要参数，但是有默认值', default=2017)
parser.add_argument('--body', '-b', help='body 属性，必要参数', required=True)
args = parser.parse_args()
if __name__ == '__main__':
try:
test_for_sys(args.year, args.name, args.body)
except Exception as e:
print(e)
Python启动参数click注解
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#!/usr/bin/python3
import click
@click.command()
@click.option('--name','-n',default='Leijun',help='name 参数，非必须，有默认值')
@click.option('--year',help='year 参数',type=int)
@click.option('--body',help='body 参数')
def test_for_sys(year, name, body):
print('the year is', year)
print('the name is', name)
print('the body is', body)
if __name__ == '__main__':
test_for_sys()
Python从上一级目录引入包
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import sys
sys.path.insert(0, sys.path[0]+"/../")
from config.env import *
3. 一个Python执行ssh配置文件的例子
配置文件ini
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[ssh]
host=119.23.106.34
port=22
username=user
password=password
python代码
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# -*- coding: utf-8 -*-
import paramiko
import os
from configparser import ConfigParser
# 读取配置文件获取服务器的登录信息
def read_ini():
info = dict()
cf = ConfigParser()
cf.read('config.ini', encoding='utf-8')
keys = cf.options('ssh')
for each in keys:
info[each] = cf.get('ssh', each)
print(info)
return info
# 连接服务区并执行shell命令返回输出结果
def ssh_test(host, port, username, password):
ssh = paramiko.SSHClient()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
# 连接服务器
try:
ssh.connect(hostname=host, port=port, username=username, password=password)
except Exception as e:
print(e)
return
# 设置一个内部函数，执行shell命令并返回输出结果
def run_shell(cmd):
ssh_in, ssh_out, ssh_error = ssh.exec_command(cmd)
result = ssh_out.read() or ssh_error.read()
return result.decode().strip()
# 获取指定文件夹的绝对地址
cmd_get_path = 'cd dbs;pwd'
db_path = run_shell(cmd_get_path)
# 获取指定文件夹中文件的名称，并跟上面得到的文件夹绝对地址组合起来
cmd_get_sqls = 'cd dbs;ls'
sqls = run_shell(cmd_get_sqls)
lis = ['{}/{}'.format(db_path, each) for each in sqls.split('\n')]
print(lis)
# 关闭连接
ssh.close()
return lis
# 链接服务器进行文件传输
def sftp_test(host, port, username, password, from_file, to_file):
transport = paramiko.Transport((host, port))
try:
transport.connect(username=username, password=password)
except Exception as e:
print(e)
return
sftp = paramiko.SFTPClient.from_transport(transport)
# 将文件下载到本地，如果是上传使用 put
sftp.get(from_file, to_file)
transport.close()
if __name__ == '__main__':
info = read_ini()
h = info.get('host', None)
p = int(info.get('port', None)) # 端口是int类型
u = info.get('username', None)
pw = info.get('password', None)
files = ssh_test(h, p, u, pw)
path = 'F:\\dbs'
if files:
for each in files:
name = each.split('/')[-1]
ss = sftp_test(h, p, u, pw, each, os.path.join(path, name))
4. Python编译客户端
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sudo pip install pyinstaller
pyinstaller main.py
# 如果libpython报错
sudo find / -name libpython3.6m.so.1.0
sudo cp dist/ build/ -r
