基于python实现制作发货单
起因, 目的:
某个小店,想做个发货单。
过程:
先写一个 html 模板。
准备数据, 一般是从数据库读取,也可以是 json 格式,或是 python 字典。总之,是数据内容。
使用 jinja2 来渲染模板。
最终的结果可以是 html, 也可以是 pdf, 反正可以直接让打印机打印。
代码 1, html 模板
<!DOCTYPE html> <html> <head> <title>Invoice</title> <style> body { font-family: Arial, sans-serif; margin: 0; padding: 0; } .container { max-width: 800px; margin: 0 auto; padding: 20px; border: 1px solid #ccc; } table { width: 100%; border-collapse: collapse; } h2 { margin-bottom: 50px; text-align: center; } th, td { padding: 10px; text-align: left; border-bottom: 1px solid #ccc; } .invoice-details { margin-bottandroidom: 20px; text-align: left; } .invoice-details p { margin: 0; font-size: 16px; } .invoice-details strong { font-weight: bold; } .invoice-items { margin-top: 60px; margin-bottom: 20px; } .invoice-items th { font-weight: bold; text-align: left; } .invoice-items td { text-align: left; } .invoice-total { text-align: right; margin-right: 30px; } .invoice-total strong { font-size: 20px; font-weight: bold; } .bottom { margin-top: 40px; text-align: right; } .info { margin-top: 60px; } .signature { width: 200px; height: auto; } @media print { .container { border: none; } } </style> </head> <body> <div class="container"> <h2>{{ invoice_header }}</h2> <div class="invoice-details"> <p><strong>Invoice number:</strong> {{ invoice_number }}</p> <p><strong>Date:</strong> {{ payment_received_date }}</p> <p><stro编程客栈ng>Billed to:</strong> {{ billed_to }}</p> <p><strong>Address: </strong> {{ billed_to_address }}</p> </div> <div class="invoice-items"> <table> <thead> <tr> <th>Description</th> <th>Amount</th> <th>Currency</th> </tr> </thead> <tbody> <tr> <td>{{ work_description }}</td> <td>{{ amount }}</td> <td>{{ currency }}</td> </tr> </tbody> </table> </div> <p class="info"> Paid in {{ currency }} to {{ person }}, IBAN <strong>{{account_iban}}</strong>, Swift <strong>{{ swkJLUKwdzdift }}</strong> </p> <div class="invoice-details bottom"> <p><strong>{{ person }}</strong></p> <p><strong>Email:</strong> {{ email }}</p></p> <p><strong>Phone:</strong> {{ phone }}</p> </div> </div> </body> </html>
效果图
代码 2, python
# file: render_html.py # 把 json 数据写入到 html 里面,进行渲染,输出实际数据的 html from jinja2 import FileSystemLoader, Environment # 参考来源 # https://dboostme.medium.com/how-to-generate-invoices-using-python-playwright-d77839af4b1e # 实际上,下面这个教程写的很不错! # https://practicalpython.yasoob.me/chapter3 invoice_number = 1 context = { "invoice_number": invoice_number, "invoice_header": "Invoice for Delivering Pizza", "amount": 10, "currency": "USD", "account": "account_id", "account_iban": "account_iban", "swift": "account_swift", "work_description": "Delivering pizza on motorbike", "person": "James Bond", "email": "james@bond.mi6", "phone": "+4476898123428", "编程客栈billed_to": "MI-6", "billed_to_address": "85 Albert Embankment", "payment_received_date": "2023-08-05" } # 整体的逻辑是: 找个模板文件,用 jinja2 渲染数据,输出 html 文件 template_loader = FileSystemLoader("./") template_env = Environment(loader=template_loader) template = template_env.get_template("invoice_sample.html") # html 模板文件 invoice_html = template.render(context) file_name = f"output_{invoice_number}.html" with open(file_name, "w") as html_file: html_file.write(invoice_html)
最终的效果
其实也可以加一个 logo, 加个图片,更好看一些。比如像这个样:
代码 3, 把 html 转为 pdf
import pdfkit # 这个是可行的!!! """ # 这种方式按照运行失败!! # from weasyprint import HTML # pip install weasyprint """ config = pdfkit.configuration(wkhtmltopdf=r"C:\Program Files\wkhtmltopdf\bin\wkhhttp://www.devze.comtmltopdf.exe") # ret = pdfkit.from_file('1.html', '1.pdf', configuration=config) ret = pdfkit.from_file('output_1_new.html', 'output_1_new.pdf', configuration=config) print(ret) # True
整体比较简单,但是对有些人或许很有用。
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