我正在寻找使用Python将网页打印成本地文件PDF的解决方案。一个好的解决方案是使用Qt,在这里找到https://bharatikunal.wordpress.com/2010/01/。
由于我在安装PyQt4时出现问题,因此它没有起作用,因为它提供了错误消息,例如' ImportError:没有名为PyQt4.QtCore的模块'和' ImportError:没有名为PyQt4.QtCore的模块'。
这是因为PyQt4没有正确安装。 我以前的库位于C:\ Python27 \ Lib,但它不适用于PyQt4。
事实上,它只需要从http://www.riverbankcomputing.com/software/pyqt/download下载(请注意您正在使用的正确Python版本),并将其安装到C:\ Python27(我的情况)。那就是它。
现在脚本运行正常,所以我想分享它。有关使用Qprinter的更多选项,请参阅http://qt-project.org/doc/qt-4.8/qprinter.html#Orientation-enum。
答案 0 :(得分:110)
您也可以使用pdfkit:
import pdfkit
pdfkit.from_url('http://google.com', 'out.pdf')
MacOS:brew install Caskroom/cask/wkhtmltopdf
Debian / Ubuntu:apt-get install wkhtmltopdf
请参阅MacOS / Ubuntu /其他操作系统的官方文档:https://github.com/JazzCore/python-pdfkit/wiki/Installing-wkhtmltopdf
答案 1 :(得分:22)
export PYTHONPATH=/test
python /test/b/b.py
答案 2 :(得分:17)
感谢以下帖子,我可以添加要打印的网页链接地址,并在生成的PDF上显示时间,无论它有多少页面。
Add text to Existing PDF using Python
https://github.com/disflux/django-mtr/blob/master/pdfgen/doc_overlay.py
分享脚本如下:
import time
from pyPdf import PdfFileWriter, PdfFileReader
import StringIO
from reportlab.pdfgen import canvas
from reportlab.lib.pagesizes import letter
from xhtml2pdf import pisa
import sys
from PyQt4.QtCore import *
from PyQt4.QtGui import *
from PyQt4.QtWebKit import *
url = 'http://www.yahoo.com'
tem_pdf = "c:\\tem_pdf.pdf"
final_file = "c:\\younameit.pdf"
app = QApplication(sys.argv)
web = QWebView()
#Read the URL given
web.load(QUrl(url))
printer = QPrinter()
#setting format
printer.setPageSize(QPrinter.A4)
printer.setOrientation(QPrinter.Landscape)
printer.setOutputFormat(QPrinter.PdfFormat)
#export file as c:\tem_pdf.pdf
printer.setOutputFileName(tem_pdf)
def convertIt():
web.print_(printer)
QApplication.exit()
QObject.connect(web, SIGNAL("loadFinished(bool)"), convertIt)
app.exec_()
sys.exit
# Below is to add on the weblink as text and present date&time on PDF generated
outputPDF = PdfFileWriter()
packet = StringIO.StringIO()
# create a new PDF with Reportlab
can = canvas.Canvas(packet, pagesize=letter)
can.setFont("Helvetica", 9)
# Writting the new line
oknow = time.strftime("%a, %d %b %Y %H:%M")
can.drawString(5, 2, url)
can.drawString(605, 2, oknow)
can.save()
#move to the beginning of the StringIO buffer
packet.seek(0)
new_pdf = PdfFileReader(packet)
# read your existing PDF
existing_pdf = PdfFileReader(file(tem_pdf, "rb"))
pages = existing_pdf.getNumPages()
output = PdfFileWriter()
# add the "watermark" (which is the new pdf) on the existing page
for x in range(0,pages):
page = existing_pdf.getPage(x)
page.mergePage(new_pdf.getPage(0))
output.addPage(page)
# finally, write "output" to a real file
outputStream = file(final_file, "wb")
output.write(outputStream)
outputStream.close()
print final_file, 'is ready.'
答案 3 :(得分:8)
这是一个正常的工作:
import sys
from PyQt4.QtCore import *
from PyQt4.QtGui import *
from PyQt4.QtWebKit import *
app = QApplication(sys.argv)
web = QWebView()
web.load(QUrl("http://www.yahoo.com"))
printer = QPrinter()
printer.setPageSize(QPrinter.A4)
printer.setOutputFormat(QPrinter.PdfFormat)
printer.setOutputFileName("fileOK.pdf")
def convertIt():
web.print_(printer)
print "Pdf generated"
QApplication.exit()
QObject.connect(web, SIGNAL("loadFinished(bool)"), convertIt)
sys.exit(app.exec_())
答案 4 :(得分:7)
这是使用QT的简单解决方案。我发现这是对StackOverFlow上另一个问题的答案的一部分。我在Windows上测试过它。
from PyQt4.QtGui import QTextDocument, QPrinter, QApplication
import sys
app = QApplication(sys.argv)
doc = QTextDocument()
location = "c://apython//Jim//html//notes.html"
html = open(location).read()
doc.setHtml(html)
printer = QPrinter()
printer.setOutputFileName("foo.pdf")
printer.setOutputFormat(QPrinter.PdfFormat)
printer.setPageSize(QPrinter.A4);
printer.setPageMargins (15,15,15,15,QPrinter.Millimeter);
doc.print_(printer)
print "done!"
答案 5 :(得分:2)
此解决方案使用PyQt5 5.15.0版对我有效
import sys
from PyQt5 import QtWidgets, QtWebEngineWidgets
from PyQt5.QtCore import QUrl
from PyQt5.QtGui import QPageLayout, QPageSize
from PyQt5.QtWidgets import QApplication
if __name__ == '__main__':
app = QtWidgets.QApplication(sys.argv)
loader = QtWebEngineWidgets.QWebEngineView()
loader.setZoomFactor(1)
layout = QPageLayout()
layout.setPageSize(QPageSize(QPageSize.A4Extra))
layout.setOrientation(QPageLayout.Portrait)
loader.load(QUrl('https://stackoverflow.com/questions/23359083/how-to-convert-webpage-into-pdf-by-using-python'))
loader.page().pdfPrintingFinished.connect(lambda *args: QApplication.exit())
def emit_pdf(finished):
loader.page().printToPdf("test.pdf", pageLayout=layout)
loader.loadFinished.connect(emit_pdf)
sys.exit(app.exec_())
答案 6 :(得分:1)
如果您使用硒和铬,则不需要自己管理cookie,并且可以从铬的印刷品生成pdf页面。 您可以参考这个项目来实现它。 https://github.com/maxvst/python-selenium-chrome-html-to-pdf-converter
import sys
import json, base64
def send_devtools(driver, cmd, params={}):
resource = "/session/%s/chromium/send_command_and_get_result" % driver.session_id
url = driver.command_executor._url + resource
body = json.dumps({'cmd': cmd, 'params': params})
response = driver.command_executor._request('POST', url, body)
return response.get('value')
def get_pdf_from_html(driver, url, print_options={}, output_file_path="example.pdf"):
driver.get(url)
calculated_print_options = {
'landscape': False,
'displayHeaderFooter': False,
'printBackground': True,
'preferCSSPageSize': True,
}
calculated_print_options.update(print_options)
result = send_devtools(driver, "Page.printToPDF", calculated_print_options)
data = base64.b64decode(result['data'])
with open(output_file_path, "wb") as f:
f.write(data)
# example
from selenium import webdriver
from selenium.webdriver.chrome.options import Options
url = "https://stackoverflow.com/questions/23359083/how-to-convert-webpage-into-pdf-by-using-python#"
webdriver_options = Options()
webdriver_options.add_argument("--no-sandbox")
webdriver_options.add_argument('--headless')
webdriver_options.add_argument('--disable-gpu')
driver = webdriver.Chrome(chromedriver, options=webdriver_options)
get_pdf_from_html(driver, url)
driver.quit()
答案 7 :(得分:0)
我使用pdfkit尝试了@NorthCat答案。
它需要安装wkhtmltopdf。可以从这里下载安装。 https://wkhtmltopdf.org/downloads.html
安装可执行文件。然后写一行以表明wkhtmltopdf的位置,如下所示。 (引用自Can't create pdf using python PDFKIT Error : " No wkhtmltopdf executable found:"
# some object with the class "tbl_impala"
query_object <- query %>%
collapse() %>%
.[2]
# actual query which can be passed to hive via R.
sql_query <- query_object[[1]]$x %>%
as.character()
# create new table
new_query <- paste0("CREATE TABLE table2 AS ",sql_query) %>%
str_replace_all(pattern = "'",replacement = '"') # this cleans up the code so it works
# if you want text without characters like \n in there.
cat(sql_query)