Install Python 3.x on CentOS/RHEL 7/6

Step 1: Download python on official site, unz

# wget https://www.python.org/ftp/python/3.6.8/Python-3.6.8.tgz
# tar -xzf Python-3.6.8.tgz

Step 2: Install Python

#cd Python-3.6.8

# ./configure --enable-optimizations --enable-shared make sudo

# make altinstall

Step 3: Set link to user environment

# sudo ln -s /usr/local/bin/python3.6 /usr/bin/python3

Step 4: Check python version

# python3 --version

# which python3

Step 5: Using

# python3 xxx.py

Step 6 : A Python Program

• Open Pycharm > New project > New .py file >

import json
from datetime import datetime, timedelta

import jwt
from flask import Response

private_key_str = open('jwtRS256.key').read()

def generate_token():
    token = encode_auth_token('''forever''')
    print(token)
    x = json.dumps({
        'error_code': 0,
        'message': 'generate token success',
        'data': {
            'token': token.decode('utf-8')
        }
    })
    print(x)


def encode_auth_token(data):
    """
    Generates the Auth Token
    :return: string
    """
    try:
        payload = {
            'exp': datetime.utcnow() + timedelta(days=3650),
            'iat': datetime.utcnow(),
            'sub': data,
            'name': ''
        }
        return jwt.encode(
            payload,
            private_key_str,
            algorithm='RS256'
        )
    except Exception as e:
        return e


generate_token()

• Config build point to main .py file (D:\Python\CreateToken.py)
• Add lib : New requirements.txt with (cryptography) > Click install plugins
• Add jwtRS256.key to project
• Run >>