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python实现将html表格转换成CSV文件的方法
简介本文实例讲述了python实现将html表格转换成CSV文件的方法。分享给大家供大家参考。具体如下:使用方法:python html2csv.py *.html这段代码使用了 HTMLParser 模块#!/usr/bin/python# -*- coding: iso-8859-1 -*-
本文实例讲述了python实现将html表格转换成CSV文件的方法。分享给大家供大家参考。具体如下:
使用方法:python html2csv.py *.html
这段代码使用了 HTMLParser 模块
#!/usr/bin/python
# -*- coding: iso-8859-1 -*-
# Hello, this program is written in Python - http://python.org
programname = 'html2csv - version 2002-09-20 - http://sebsauvage.net'
import sys, getopt, os.path, glob, HTMLParser, re
try: import psyco ; psyco.jit() # If present, use psyco to accelerate the program
except: pass
def usage(progname):
''' Display program usage. '''
progname = os.path.split(progname)[1]
if os.path.splitext(progname)[1] in ['.py','.pyc']: progname = 'python '+progname
return '''%s
A coarse HTML tables to CSV (Comma-Separated Values) converter.
Syntax : %s source.html
Arguments : source.html is the HTML file you want to convert to CSV.
By default, the file will be converted to csv with the same
name and the csv extension (source.html -> source.csv)
You can use * and "'
self.inTD = 1
def end_td(self):
if self.inTD:
self.CSVrow += '",'
self.inTD = 0
def handle_data(self, data):
if self.inTD:
self.CSVrow += self.re_multiplespaces.sub(' ',data.replace('\t',' ').replace('\n','').replace('\r','').replace('"','""'))
def getCSV(self,purge=False):
''' Get output CSV.
If purge is true, getCSV() will return all remaining data,
even if <td> or <tr> are not properly closed.
(You would typically call getCSV with purge=True when you do not have
any more HTML to feed and you suspect dirty HTML (unclosed tags). '''
if purge and self.inTR: self.end_tr() # This will also end_td and append last CSV row to output CSV.
dataout = self.CSV[:]
self.CSV = ''
return dataout
if __name__ == "__main__":
try: # Put getopt in place for future usage.
opts, args = getopt.getopt(sys.argv[1:],None)
except getopt.GetoptError:
print usage(sys.argv[0]) # print help information and exit:
sys.exit(2)
if len(args) == 0:
print usage(sys.argv[0]) # print help information and exit:
sys.exit(2)
print programname
html_files = glob.glob(args[0])
for htmlfilename in html_files:
outputfilename = os.path.splitext(htmlfilename)[0]+'.csv'
parser = html2csv()
print 'Reading %s, writing %s...' % (htmlfilename, outputfilename)
try:
htmlfile = open(htmlfilename, 'rb')
csvfile = open( outputfilename, 'w+b')
data = htmlfile.read(8192)
while data:
parser.feed( data )
csvfile.write( parser.getCSV() )
sys.stdout.write('%d CSV rows written.\r' % parser.rowCount)
data = htmlfile.read(8192)
csvfile.write( parser.getCSV(True) )
csvfile.close()
htmlfile.close()
except:
print 'Error converting %s ' % htmlfilename
try: htmlfile.close()
except: pass
try: csvfile.close()
except: pass
print 'All done. '
希望本文所述对大家的Python程序设计有所帮助。