Python讀取複雜CSV檔案

class readcsv:

anchor = 0
final = 
def __init__(self, path, head=0):
quote = 0
row_tmp = ''
cell_tmp = ''
cell = 
channel = file(path,'r')
data = channel.readlines()
channel.close()
reg_quote = re.compile('\"')
rm_quote = re.compile(r'"([\s\s]*)"')
db_quote = re.compile(r'""') 
for line in data:
quote += len(reg_quote.findall(line))
if quote%2 == 0:
quote = 0
row_tmp += line.strip('\n')
row_tmp = row_tmp.split(',')
for col in row_tmp:
quote+=len(reg_quote.findall(col))
if quote%2 == 0:
cell_tmp += col 
cell_tmp = rm_quote.sub(r'\1',cell_tmp)
cell_tmp = db_quote.sub('\"',cell_tmp)
cell_tmp = ''
quote = 0
else:
cell_tmp += col+','
cell = 
row_tmp = ''
else:
row_tmp+=line
def getcell(self,row,col):
return readcsv.final[row][col]
def getvalue(self, title):
return self.getcell(readcsv.anchor, readcsv.final[0].index(title))
def next(self):
if self.done() != true and readcsv.anchor < len(readcsv.final)-1:
readcsv.anchor += 1
def done(self):
if readcsv.anchor == len(readcsv.final)-1:
return true
else:
return false
def reset(self):
readcsv.anchor = 0

name

ageaddress

zhang_san

13address1:

1. aaaaa

2. aaad "bbbb",

3. bacad,

adfa"aaa".

li_si

14address2, ***x

aaaa"

bbbbb".,

wang_wu

15address3

example:

p = readcsv('c:/csvfile.csv')

print p.getcell(1,2)

address1:

1. aaaaa

2. aaad "bbbb",

3. bacad,

adfa"aaa".

p.next()

print p.getvalue('name')
p.next()
print p.getvalue('address')

zhang_san

address2, ***x

aaaa"

bbbbb".,

p.done()

p.next()
p.next()
p.next()
p.done()

false

true

p.next()

p.next()
print p.getvalue('name')
p.reset()
print p.getvalue('name')

li_si

name

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