Python连接打印机实现自动化打印的实用技巧和示例代码

import cups

conn = cups.Connection()
printers = conn.getPrinters()
for printer in printers:
    print(printer)

import cups
import os

conn = cups.Connection()
printers = conn.getPrinters()
for printer in printers:
    if printer['name'] == 'MyPrinter':
        # 打开文件并读取内容
        with open('example.pdf', 'rb') as file:
            data = file.read()
        # 创建打印任务并设置参数
        print_job = conn.printFile(printer['name'], data, 'example.pdf', 'PDF', {'Job-Sheets': None})
        # 提交打印任务并等待完成
        conn.printJob(print_job)

import cups
import os

conn = cups.Connection()
queues = conn.getQueues()
for queue in queues:
    print(queue)

import cups
import os

conn = cups.Connection()
jobs = conn.getJobs()
for job in jobs:
    if job['state'] == 'Printing':
        # 取消打印任务并等待完成取消操作
        conn.cancelJob(job)

import threading

def print_file(file_path):
    with open(file_path, 'rb') as file:
        data = file.read()
    conn.printFile('MyPrinter', data, file_path, 'PDF', {'Job-Sheets': None})

files = ['example1.pdf', 'example2.pdf', 'example3.pdf']
threads = []

for file in files:
    thread = threading.Thread(target=print_file, args=(file,))
    thread.start()
    threads.append(thread)

for thread in threads:
    thread.join()

import asyncio

async def print_file(file_path):
    with open(file_path, 'rb') as file:
        data = file.read()
    await conn.printFile('MyPrinter', data, file_path, 'PDF', {'Job-Sheets': None})

files = ['example1.pdf', 'example2.pdf', 'example3.pdf']
tasks = [print_file(file) for file in files]

await asyncio.gather(*tasks)

import threading

max_threads = 5
semaphore = threading.Semaphore(max_threads)

def print_file(file_path):
    with semaphore:
        with open(file_path, 'rb') as file:
            data = file.read()
        conn.printFile('MyPrinter', data, file_path, 'PDF', {'Job-Sheets': None})

files = ['example1.pdf', 'example2.pdf', 'example3.pdf']
threads = []

for file in files:
    thread = threading.Thread(target=print_file, args=(file,))
    thread.start()
    threads.append(thread)

for thread in threads:
    thread.join()