Python常用模块—— Colorama模块

pip install colorama

Fore: BLACK, RED, GREEN, YELLOW, BLUE, MAGENTA, CYAN, WHITE, RESET.
Back: BLACK, RED, GREEN, YELLOW, BLUE, MAGENTA, CYAN, WHITE, RESET.
Style: DIM, NORMAL, BRIGHT, RESET_ALL

from colorama import Fore, Back, Style
print(Fore.RED + ‘some red text‘)
print(Back.GREEN + ‘and with a green background‘)
print(Style.DIM + ‘and in dim text‘)
print(Style.RESET_ALL)
print(‘back to normal now‘)

# 记得要及时关闭colorma的作用范围
# 如果不关闭的话，后面所有的输出都会是你指定的颜色

print(Style.RESET_ALL)

init(autoreset = False):

#!/usr/bin/env python 
#encoding: utf-8

from colorama import init, Fore, Back, Style


if __name__ == "__main__":

    init(autoreset=True)    #  初始化，并且设置颜色设置自动恢复
    print(Fore.RED + ‘some red text‘)
    print(Back.GREEN + ‘and with a green background‘)
    print(Style.DIM + ‘and in dim text‘)
    # 如果未设置autoreset=True，需要使用如下代码重置终端颜色为初始设置
    #print(Fore.RESET + Back.RESET + Style.RESET_ALL)  autoreset=True
    print(‘back to normal now‘)

import sys
import os
import random
import string
from colorama import Fore,Style,init
import platform

def print_arg(arg):
    """
    打印参数
    :param arg:
    :return:
    """

    for ind, val in enumerate(arg):
        if ind == 0:

            print_color(Fore.YELLOW,r"------执行%s输入参数为--------"% val)
        else:
            print(val, end=",")


def print_color(color, mes=""):
    """
     获得系统平台
     windows终端需要设置
     init(wrap=True)
    :param color:
    :param mes:
    :return:
    """
    v_system = platform.system()
    if v_system != ‘Windows‘:
        print(color+mes)
    else:
        # init(wrap=True)
        print(color+mes)



# 获得系统参数
v_arg = sys.argv
init(autoreset=True)  # 初始化，并且设置颜色设置自动恢复
# print_color(Fore.YELLOW+platform.system())
if len(v_arg) != 4:
    # print(platform.system())
    print_arg(v_arg)
    print_color(Fore.RED,"---参数输入错误--")
    print_color(Fore.RED, "fileStrReplace.py 文件名 旧字符串 新字符串")
else:
    f_name = v_arg[1].strip()
    old_str = v_arg[2].strip()  # 旧字符
    new_str = v_arg[3].strip()  # 替换的新字符
    f_new_name = "%s.new" % f_name
    replace_count = 0  # 字符替换次数
    if not os.path.exists(f_name):
        print_color(Fore.YELLOW, "%s文件不存在" % f_name)
    else:
        f_new = open(f_new_name, ‘w‘)
        f = open(f_name, "r",)
        for line in f:  # 读取大文件
            if old_str in line:
                new_line = line.replace(old_str, new_str)  # 字符替换
                replace_count += 1
            else:
                new_line = line

            f_new.write(new_line)  # 内容写新文件

        f.close()
        f_new.close()

        if replace_count == 0:
            print_color(Fore.YELLOW,"字符%s不存在" % (old_str))
        else:
            bak_f = f_name + ‘‘.join(random.sample(string.digits, 6))
            os.rename(f_name, bak_f)  # 备份旧文件
            os.rename(f_new_name, f_name)  # 把新文件名字改成原文件的名字，就把之前的覆盖掉了
            print_color(Fore.GREEN, "文件替换成功,[字符%s替换%s]共%s次，源文件备份[%s]" % (old_str,new_str, replace_count,bak_f))

# print_color(Style.RESET_ALL)  # 还原默认颜色