66 lines
1.4 KiB
Python
66 lines
1.4 KiB
Python
import csv
|
|
|
|
class CSVData:
|
|
def __init__(self,csvfile,names = None,headline = 0,dataline = 1):
|
|
self.csvfile = csvfile
|
|
self.names = names
|
|
self.headline = headline
|
|
self.dataline = dataline
|
|
|
|
def read(self):
|
|
f = open(self.csvfile,'rb')
|
|
reader = csv.reader(f)
|
|
fields = None
|
|
if self.names is not None:
|
|
fields = self.names
|
|
data = []
|
|
lno = 0
|
|
for l in reader:
|
|
if fields is None and lno == self.headline:
|
|
fields = [f for f in l]
|
|
if lno >= self.dataline:
|
|
rec = {}
|
|
for i in range(len(fields)):
|
|
rec[fields[i]] = l[i]
|
|
data.append(rec)
|
|
lno += 1
|
|
f.close()
|
|
return data
|
|
|
|
def iterRead(self):
|
|
self.fd = open(self.csvfile,'r')
|
|
try:
|
|
reader = csv.reader(self.fd)
|
|
fields = None
|
|
if self.names is not None:
|
|
fields = self.names
|
|
lno = 0
|
|
self.onBegin()
|
|
for l in reader:
|
|
if fields is None and lno == self.headline:
|
|
fields = [f for f in l]
|
|
if lno >= self.dataline:
|
|
rec = {}
|
|
for i in range(len(fields)):
|
|
rec[fields[i]] = l[i]
|
|
self.onRecord(rec)
|
|
lno += 1
|
|
self.fd.close()
|
|
self.onFinish()
|
|
except exception as e:
|
|
fd.close()
|
|
raise e
|
|
|
|
def onReadBegin(self):
|
|
pass
|
|
def onRecord(self,rec):
|
|
print(rec)
|
|
|
|
def onFinish(self):
|
|
print("onFinish() called")
|
|
|
|
if __name__ == '__main__':
|
|
import sys
|
|
cd = CSVData(sys.argv[1],names = ['st_date','open_price','max_price','min_price','close_price','volume','adj_price'])
|
|
cd.iterRead()
|