我是python和编程的新手。我正在编写一个脚本,并讨论如何将列表变量从一个类传递到另一个类。代码附后。我不确定如何将列表从URL类传递给createRules类。
import csv, sys, time
from urlparse import urlparse, urlsplit, urlunsplit
class URL():
""" Function parses out urls to get needed parts"""
def processUrl(self):
fromUrlArr = [[], [], [], []]
dstUrlArr = [[], [], [], [], []]
markets = []
with open('Redirects.csv') as csvfile:
readCSV = csv.reader(csvfile, delimiter=',')
for row in readCSV:
from_url = urlparse(row[0])
dst_url = urlparse(row[1])
path = dst_url.path.split('/')[2:]
dst_path = '/'.join(path)
market = from_url.path.split('/')[1]
fromUrlArr[0].append(from_url.scheme) # I want to use the following list in the class below
dstUrlArr[0].append(dst_url.scheme)
fromUrlArr[1].append(from_url.netloc)
dstUrlArr[1].append(dst_url.netloc)
fromUrlArr[2].append(from_url.path)
dstUrlArr[2].append(dst_path)
fromUrlArr[3].append(from_url.query)
dstUrlArr[4].append(market)
dstUrlArr[3].append(dst_url.query)
class Rule():
def createRules():
# ticket = str(sys.argv[1])
# user = str(sys.argv[2])
# today = time.strftime("%Y-%m-%d")
答案 0 :(得分:0)
您可以将其作为参数传递。在Python中,所有对象类型都通过引用传递。因此,您需要稍微更改createRules()
的定义。我假设你的意思是将它用作工厂函数并在类上调用它,所以你需要创建一个类方法。
@classmethod
def createRules(cls, myList):
# do stuff
然后你可以通过调用它来传递一个列表
someList = [1, 2, 3]
rules = Rule.createRules(someList)
答案 1 :(得分:0)
你一般可以做的是
class A:
def func(self):
list1 = ['a']
list2 = ['b']
list3 = ['c']
return list1, list2, list3
class B:
def newfunc(self):
func_results = A().func()
loaded_list1 = func_results[0]
loaded_list2 = func_results[1]
loaded_list3 = func_results[2]
对于您的示例,这看起来像:
import csv, sys, time
from urlparse import urlparse, urlsplit, urlunsplit
class URL():
""" Function parses out urls to get needed parts"""
def processUrl(self):
with open('Redirects.csv') as csvfile:
readCSV = csv.reader(csvfile, delimiter=',')
for row in readCSV:
from_url = urlparse(row[0])
dst_url = urlparse(row[1])
path = dst_url.path.split('/')[2:]
dst_path = '/'.join(path)
market = from_url.path.split('/')[1]
fromUrlArr[0].append(from_url.scheme) # I want to use the following list in the class below
dstUrlArr[0].append(dst_url.scheme)
fromUrlArr[1].append(from_url.netloc)
dstUrlArr[1].append(dst_url.netloc)
fromUrlArr[2].append(from_url.path)
dstUrlArr[2].append(dst_path)
fromUrlArr[3].append(from_url.query)
dstUrlArr[4].append(market)
dstUrlArr[3].append(dst_url.query)
return fromUrlArr, dstUrlArr, markets
class Rule():
def createRules(self):
func_results_to_load = URL().processURL()
fromUrlArr = func_results_to_load[0]
dstUrlArr = func_results_to_load[1]
market = func_results_to_load[2]
# ticket = str(sys.argv[1])
# user = str(sys.argv[2])
# today = time.strftime("%Y-%m-%d")
print dstUrlArr[4][2]
rule = Rule() rule.createRules()