ReportLab 实践

python 生成报告， ReportLab 实践，网上找的例子，自己实践了一把。

文档

然后照着文档，例子

写成了一个：

from reportlab.graphics.shapes import Drawing  
from reportlab.graphics.charts.barcharts import VerticalBarChart  
from urllib import urlopen    
from reportlab.graphics.shapes import *    
from reportlab.graphics.charts.lineplots import LinePlot    
from reportlab.graphics.charts.textlabels import Label    
from reportlab.graphics import renderPDF  
drawing = Drawing(400, 200)  
data = [(13, 5, 20),(14, 6, 21)]  
bc = VerticalBarChart()  
bc.x = 50  
bc.y = 50  
bc.height = 125  
bc.width = 300  
bc.data = data  
bc.strokeColor = colors.black  
bc.valueAxis.valueMin = 0  
bc.valueAxis.valueMax = 50  
bc.valueAxis.valueStep = 10  
bc.categoryAxis.labels.boxAnchor ='ne'  
bc.categoryAxis.labels.dx = 8  
bc.categoryAxis.labels.dy = -2  
bc.categoryAxis.labels.angle = 30  
bc.categoryAxis.categoryNames = ['Jan-99','Feb-99','Mar-99']  
drawing.add(bc)  
  
drawing.add(String(250,150,"ss", fontSize=14,fillColor=colors.red))        
renderPDF.drawToFile(drawing,'report2.pdf','API')

然后按照

学习了下：

#!/usr/bin/env python  
import subprocess  
import datetime  
from reportlab.pdfgen import canvas  
from reportlab.lib.units import inch  
import os  
def disk_report():  
    p = os.popen("df -h")  
#   print p.stdout.readlines()  
    return p.readlines()  
def create_pdf(input, output="disk_report.pdf"):  
    now = datetime.datetime.today()  
    date = now.strftime("%Y-%m-%d %H:%M:%S")  
    c = canvas.Canvas(output)  
    textobject = c.beginText()  
    textobject.setTextOrigin(inch, 11*inch)  
    textobject.textLines('''''Disk Capcity Report: %s''' %date)  
    for line in input:  
        textobject.textLine(line.strip())  
    c.drawText(textobject)  
    c.showPage()  
    c.save()  
report = disk_report()  
create_pdf(report)

再练习：

#!/usr/bin/python  
from reportlab.pdfgen import canvas  
def hello():  
    c = canvas.Canvas("helloworld.pdf")  
    c.drawString(100,100,"Hello,World")  
    c.showPage()  
    c.save()  
hello()