pycups 打印表格

要使用 pycups 在 Python 中打印表格，您可以使用以下步骤：

1. 导入必要的库：

import cups
from escpos import *

2. 连接到 CUPS 打印服务器：

conn = cups.Connection()

3. 获取可用打印机列表：

printers = conn.getPrinters()

4. 选择要使用的打印机：

printer_name = "Your_Printer_Name"
printer = conn.getPrinter(printer_name)

5. 创建 ESC/POS 打印机对象：

epson = printer.getMakeAndModel()
p = printer_name
if epson == 'EPSON':
    p = printer_name.replace('_', '-')
    p = printer_name.replace(' ', '-')
    p = printer_name.replace('\t', '-')
    p = printer_name.replace('\n', '-')
    p = printer_name.replace('\r', '-')
    p = printer_name.replace(':', '-')
    epson = None
printer = printer_name
Epson = None
if epson == 'EPSON':
    Epson = printer.DK.T400()
else:
    Epson = printer.DK.T400()

6. 定义表格内容：

table_data = [
    ['Name', 'Age', 'Gender'],
    ['John', '25', 'Male'],
    ['Jane', '32', 'Female'],
    ['Bob', '45', 'Male']
]

7. 将表格转换为 ESC/POS 命令并打印：

for row in table_data:
    Epson.set(align='center', font='b', width=1, height=1)
    Epson.text('\n')
    for item in row:
        Epson.set(align='left', font='b', width=1, height=1)
        Epson.text(item)
        Epson.set(align='center', font='b', width=1, height=1)
        Epson.text('|')
    Epson.cut()

完整代码示例：

import cups
from escpos import *

# Connect to CUPS server
conn = cups.Connection()

# Get available printers
printers = conn.getPrinters()

# Select printer
printer_name = "Your_Printer_Name"
printer = conn.getPrinter(printer_name)

# Create ESC/POS printer object
epson = printer.getMakeAndModel()
p = printer_name
if epson == 'EPSON':
    p = printer_name.replace('_', '-')
    p = printer_name.replace(' ', '-')
    p = printer_name.replace('\t', '-')
    p = printer_name.replace('\n', '-')
    p = printer_name.replace('\r', '-')
    p = printer_name.replace(':', '-')
    epson = None
printer = printer_name
Epson = None
if epson == 'EPSON':
    Epson = printer.DK.T400()
else:
    Epson = printer.DK.T400()

# Define table data
table_data = [
    ['Name', 'Age', 'Gender'],
    ['John', '25', 'Male'],
    ['Jane', '32', 'Female'],
    ['Bob', '45', 'Male']
]

# Print table
for row in table_data:
    Epson.set(align='center', font='b', width=1, height=1)
    Epson.text('\n')
    for item in row:
        Epson.set(align='left', font='b', width=1, height=1)
        Epson.text(item)
        Epson.set(align='center', font='b', width=1, height=1)
        Epson.text('|')
    Epson.cut()

# Close printer connection
Epson.close()