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列表附加不能正常工作

分类: 技术问答 • 2022-05-23 18:06:42
问题描述：

我有应该填写IP地址范围，以便没有重叠的代码。我有一个以前的版本，这很好，但我改变了它自动化的所有通行证，并减少浪费和资源密集型。列表附加不能正常工作

这是我当前的代码：

import ipaddress 
import csv 
from csv import DictReader, DictWriter 
import cProfile 
import pstats 
import operator 
import time 

start_time=time.strftime("%I:%M:%S %p", time.localtime()) 


alphlst=[] 
SubnetDic1=[] 
global SubnetDic2 

with open(r'C:\ExampleBefore.csv', newline='') as fin: 

    read = DictReader(fin) 

    for line in read: 
     alphlst.append(line) 



def program(): 
    print("started") 
    global alphlst 
    lst3=[] 
    global lst4 
    lst4=[] 
    global lst5 
    lst5=[] 
    endlist=[] 
    global SubnetDic1 
    SubnetDic1=[] 
    global SubnetDic2 
    SubnetDic2=[] 
    global SubOut1 
    SubOut1=[] 
    global SubOut2 
    SubOut2=[] 
    msklst=[] 
    global lst 
    lst=[] 

    print(alphlst) 

    print("^ alphlst") 


    for li in alphlst: 
     li['CIDR']=ipaddress.ip_network(li['CIDR']) 
     SubnetDic2.append(li) 
     if str(li['CIDR'].netmask) != '255.255.255.255': 
      SubnetDic1.append(li) 

    print("alph list clear") 


    alphlst=[] 

    print("after alph list clear") 


    print("Dic lists completed") 

    def Overlap(y, z): 

     global lst5 
     global lst 

     try: 
      if y['CIDR'].overlaps(z['CIDR']): 
       lst=list(y['CIDR'].address_exclude(z['CIDR'])) # List of subnets excluding line4 subnet 
       if len(lst) != 0: 
        print("not empty. {} is obsolete.".format(y['CIDR'])) 
        lst5.append(str(y['CIDR'])) 
        print(lst) 
     except ValueError: 
      return False 





    for line3 in SubnetDic1: 
     line3['CIDR']=ipaddress.ip_network(line3['CIDR']) # Convert IP ranges to ip network object 
     lst3.append(str(line3['CIDR'])) 
     for line4 in SubnetDic2: 
      line4['CIDR']=ipaddress.ip_network(line4['CIDR']) # Convert IP ranges to ip network object 
      Overlap(line3, line4) # Tests for IP overlap 
      for val in lst: 
       if str(val) not in lst3: 
        if str(val) not in lst4: 
         subwr=line3 
         subwr['CIDR']=val # New range 
         subwr['IPStart']=val.network_address #New net address 
         subwr['IPStop']=val.broadcast_address #New broadcast address 
         SubOut1.append(subwr) 
         print("{} is line3".format(subwr)) 
         print("{} is line3 tst".format(line3)) 
         lst4.append(str(val)) 



    print(SubOut1) 
    print("^ SubOut1") 




    print("Subnet part1 completed") 

    global lst7 


    lst7=[] 


    for line5 in SubnetDic2: 
     line5['CIDR']=ipaddress.ip_network(line5['CIDR']) # Convert IP ranges to ip network object 
     lst7.append(str(line5['CIDR'])) 
     print("{} line5 end".format(line5)) 
     if str(line5['CIDR']) not in lst5: 
      print("{} line5 aft".format(line5)) 
      SubOut2.append(line5) # Write lines 

    print("Subnet part2 completed") 


    for line6 in SubOut2: 
     endlist.append(line6) 

    print("Subnet part3 completed") 

    for line7 in SubOut1: 
     endlist.append(line7) 

    print("Subnet part4 completed") 

    lst8=[] 

    for line10 in endlist: 
     line10['CIDR']=ipaddress.ip_network(line10['CIDR']) 
     line10['Mask']=line10['CIDR'].netmask 
     print("{} is line10 try".format(line10)) 
     if str(line10['CIDR']) not in lst8: 
      msklst.append(line10) 
      lst8.append(str(line10['CIDR'])) 
      print("{} is line10 append".format(line10)) 



    srtlst=sorted(msklst, key=operator.itemgetter('Mask'), reverse=True) 

    for lip in srtlst: 
     alphlst.append(lip) 






def all_true(items): 
    return all(x == "True" for x in items) 

lstadd=[] 

def in_lst(): 

    global lst4 
    global SubnetDic2 
    global lstadd 
    global lst7 

    lstadd=[] 

    for l in lst4: 
     if l in lst7: 
      lstadd.append("True") 
     else: 
      lstadd.append("False") 

    print(lstadd) 
    print(lst4) 

def chk_lst(): 

    print("running chk_lst") 

    in_lst() 

    global lstadd 

    if all_true(lstadd): 
     return True 
    else: 
     return False 


pass_start=time.strftime("%I:%M:%S %p", time.localtime()) 
cnt=1 
cProfile.run('program()', 'prostats') 
pass_end=time.strftime("%I:%M:%S %p", time.localtime()) 
p = pstats.Stats('prostats') 
p.print_stats(0) 
print("Pass {0}. Start: {1} End: {2}".format(cnt, pass_start, pass_end)) 


while chk_lst() is False: 
    pass_start2=time.strftime("%I:%M:%S %p", time.localtime()) 
    cnt = cnt + 1 
    cProfile.run('program()', 'prostats2') 
    pass_end2=time.strftime("%I:%M:%S %p", time.localtime()) 
    p = pstats.Stats('prostats2') 
    p.print_stats(0) 
    print("Pass {0}. Start: {1} End: {2}".format(cnt, pass_start2, pass_end2)) 


print("All Subnets Done")  


with open(r'C:\ExampleBefore.csv', newline='') as fin7,\ 
    open(r'C:\TstExample-sort1.csv', 'w', newline='') as fout5: 

     read7 = DictReader(fin7) 

     writenum6 = DictWriter(fout5, fieldnames=read7.fieldnames, extrasaction='ignore') 
     writenum6.writeheader() 

     global alphlst 

     for lime in alphlst: 
      writenum6.writerow(lime) 

     print("Write Complete")

我知道这是凌乱的，我知道我在做一些不必要的东西在里面，现在，是因为我想的东西，使其工作和没有清理它呢。例如，所有打印仅用于故障排除。

这是和示例输入文件（真钞要大得多，虽然）：

Zone Name,IPStart,IPStop,CIDR,Source 
Group A - Server,10.55.22.1/32,10.55.22.1/32,10.55.22.1/32,New List 
Group A Sales Primary routers,10.23.1.0,10.23.1.15,10.24.1.0/28,New List 
Group A Sales Web Servers - Primary,10.18.0.0,10.18.0.255,10.18.0.0/24,New List 
Group A Marketing,10.62.0.0,10.62.255.255,10.62.0.0/16,New List 
Group A Research,10.62.0.0,10.63.255.255,10.62.0.0/15,Old List 
Group A Sales Web Servers,10.16.0.0,10.19.255.255,10.16.0.0/14,New List 
Group A Sales,10.16.0.0,10.31.255.255,10.16.0.0/12,New List 
Group A,10.0.0.0,10.127.255.255,10.0.0.0/9,New List 
Group B,10.128.0.0,10.255.255.255,10.128.0.0/9,Old List

我已经想通了，问题是在这部分代码：

for line3 in SubnetDic1: 
     line3['CIDR']=ipaddress.ip_network(line3['CIDR']) # Convert IP ranges to ip network object 
     lst3.append(str(line3['CIDR'])) 
     for line4 in SubnetDic2: 
      line4['CIDR']=ipaddress.ip_network(line4['CIDR']) # Convert IP ranges to ip network object 
      Overlap(line3, line4) # Tests for IP overlap 
      for val in lst: 
       if str(val) not in lst3: 
        if str(val) not in lst4: 
         subwr=line3 
         subwr['CIDR']=val # New range 
         subwr['IPStart']=val.network_address #New net address 
         subwr['IPStop']=val.broadcast_address #New broadcast address 
         SubOut1.append(subwr) 
         print("{} is line3".format(subwr)) 
         print("{} is line3 tst".format(line3)) 
         lst4.append(str(val)) 



    print(SubOut1) 
    print("^ SubOut1")

基本上，附加到SubOut1的值与所假定的不匹配。然而，它在print("{} is line3".format(subwr))和print("{} is line3 tst".format(line3))这两行中打印它应该是什么。请记住，我之前使用“line3”作为附加到列表的值而不是subwr，但生成了相同的结果。

这是什么它打印的线print("{} is line3".format(subwr))和print("{} is line3 tst".format(line3))一个例子：

{'Zone Name': 'Group A', 'IPStart': IPv4Address('10.64.0.0'), 'CIDR': IPv4Network('10.64.0.0/10'), 'Source': 'New List', 'IPStop': IPv4Address('10.127.255.255')} is line3 
{'Zone Name': 'Group A', 'IPStart': IPv4Address('10.64.0.0'), 'CIDR': IPv4Network('10.64.0.0/10'), 'Source': 'New List', 'IPStop': IPv4Address('10.127.255.255')} is line3 tst

而这就是在列表“SubOut1”第一遍（当它应该具有高于它的线和其他人）：

[{'Zone Name': 'Group A Research', 'IPStart': IPv4Address('10.63.0.0'), 'CIDR': IPv4Network('10.63.0.0/16'), 'Source': 'Old List', 'IPStop': IPv4Address('10.63.255.255')}, {'Zone Name': 'Group A Sales Web Servers', 'IPStart': IPv4Address('10.18.1.0'), 'CIDR': IPv4Network('10.18.1.0/24'), 'Source': 'New List', 'IPStop': IPv4Address('10.18.1.255')}, {'Zone Name': 'Group A Sales Web Servers', 'IPStart': IPv4Address('10.18.1.0'), 'CIDR': IPv4Network('10.18.1.0/24'), 'Source': 'New List', 'IPStop': IPv4Address('10.18.1.255')}, {'Zone Name': 'Group A Sales Web Servers', 'IPStart': IPv4Address('10.18.1.0'), 'CIDR': IPv4Network('10.18.1.0/24'), 'Source': 'New List', 'IPStop': IPv4Address('10.18.1.255')}, {'Zone Name': 'Group A Sales Web Servers', 'IPStart': IPv4Address('10.18.1.0'), 'CIDR': IPv4Network('10.18.1.0/24'), 'Source': 'New List', 'IPStop': IPv4Address('10.18.1.255')}, {'Zone Name': 'Group A Sales Web Servers', 'IPStart': IPv4Address('10.18.1.0'), 'CIDR': IPv4Network('10.18.1.0/24'), 'Source': 'New List', 'IPStop': IPv4Address('10.18.1.255')}, {'Zone Name': 'Group A Sales Web Servers', 'IPStart': IPv4Address('10.18.1.0'), 'CIDR': IPv4Network('10.18.1.0/24'), 'Source': 'New List', 'IPStop': IPv4Address('10.18.1.255')}, {'Zone Name': 'Group A Sales Web Servers', 'IPStart': IPv4Address('10.18.1.0'), 'CIDR': IPv4Network('10.18.1.0/24'), 'Source': 'New List', 'IPStop': IPv4Address('10.18.1.255')}, {'Zone Name': 'Group A Sales Web Servers', 'IPStart': IPv4Address('10.18.1.0'), 'CIDR': IPv4Network('10.18.1.0/24'), 'Source': 'New List', 'IPStop': IPv4Address('10.18.1.255')}, {'Zone Name': 'Group A Sales Web Servers', 'IPStart': IPv4Address('10.18.1.0'), 'CIDR': IPv4Network('10.18.1.0/24'), 'Source': 'New List', 'IPStop': IPv4Address('10.18.1.255')}, {'Zone Name': 'Group A Sales Web Servers', 'IPStart': IPv4Address('10.18.1.0'), 'CIDR': IPv4Network('10.18.1.0/24'), 'Source': 'New List', 'IPStop': IPv4Address('10.18.1.255')}, {'Zone Name': 'Group A Sales', 'IPStart': IPv4Address('10.24.1.16'), 'CIDR': IPv4Network('10.24.1.16/28'), 'Source': 'New List', 'IPStop': IPv4Address('10.24.1.31')}, {'Zone Name': 'Group A Sales', 'IPStart': IPv4Address('10.24.1.16'), 'CIDR': IPv4Network('10.24.1.16/28'), 'Source': 'New List', 'IPStop': IPv4Address('10.24.1.31')}, {'Zone Name': 'Group A Sales', 'IPStart': IPv4Address('10.24.1.16'), 'CIDR': IPv4Network('10.24.1.16/28'), 'Source': 'New List', 'IPStop': IPv4Address('10.24.1.31')}, {'Zone Name': 'Group A Sales', 'IPStart': IPv4Address('10.24.1.16'), 'CIDR': IPv4Network('10.24.1.16/28'), 'Source': 'New List', 'IPStop': IPv4Address('10.24.1.31')}, {'Zone Name': 'Group A Sales', 'IPStart': IPv4Address('10.24.1.16'), 'CIDR': IPv4Network('10.24.1.16/28'), 'Source': 'New List', 'IPStop': IPv4Address('10.24.1.31')}, {'Zone Name': 'Group A Sales', 'IPStart': IPv4Address('10.24.1.16'), 'CIDR': IPv4Network('10.24.1.16/28'), 'Source': 'New List', 'IPStop': IPv4Address('10.24.1.31')}, {'Zone Name': 'Group A Sales', 'IPStart': IPv4Address('10.24.1.16'), 'CIDR': IPv4Network('10.24.1.16/28'), 'Source': 'New List', 'IPStop': IPv4Address('10.24.1.31')}, {'Zone Name': 'Group A Sales', 'IPStart': IPv4Address('10.24.1.16'), 'CIDR': IPv4Network('10.24.1.16/28'), 'Source': 'New List', 'IPStop': IPv4Address('10.24.1.31')}, {'Zone Name': 'Group A Sales', 'IPStart': IPv4Address('10.24.1.16'), 'CIDR': IPv4Network('10.24.1.16/28'), 'Source': 'New List', 'IPStop': IPv4Address('10.24.1.31')}, {'Zone Name': 'Group A Sales', 'IPStart': IPv4Address('10.24.1.16'), 'CIDR': IPv4Network('10.24.1.16/28'), 'Source': 'New List', 'IPStop': IPv4Address('10.24.1.31')}, {'Zone Name': 'Group A Sales', 'IPStart': IPv4Address('10.24.1.16'), 'CIDR': IPv4Network('10.24.1.16/28'), 'Source': 'New List', 'IPStop': IPv4Address('10.24.1.31')}, {'Zone Name': 'Group A Sales', 'IPStart': IPv4Address('10.24.1.16'), 'CIDR': IPv4Network('10.24.1.16/28'), 'Source': 'New List', 'IPStop': IPv4Address('10.24.1.31')}, {'Zone Name': 'Group A Sales', 'IPStart': IPv4Address('10.24.1.16'), 'CIDR': IPv4Network('10.24.1.16/28'), 'Source': 'New List', 'IPStop': IPv4Address('10.24.1.31')}, {'Zone Name': 'Group A Sales', 'IPStart': IPv4Address('10.24.1.16'), 'CIDR': IPv4Network('10.24.1.16/28'), 'Source': 'New List', 'IPStop': IPv4Address('10.24.1.31')}, {'Zone Name': 'Group A Sales', 'IPStart': IPv4Address('10.24.1.16'), 'CIDR': IPv4Network('10.24.1.16/28'), 'Source': 'New List', 'IPStop': IPv4Address('10.24.1.31')}, {'Zone Name': 'Group A Sales', 'IPStart': IPv4Address('10.24.1.16'), 'CIDR': IPv4Network('10.24.1.16/28'), 'Source': 'New List', 'IPStop': IPv4Address('10.24.1.31')}, {'Zone Name': 'Group A', 'IPStart': IPv4Address('10.55.22.0'), 'CIDR': IPv4Network('10.55.22.0/32'), 'Source': 'New List', 'IPStop': IPv4Address('10.55.22.0')}, {'Zone Name': 'Group A', 'IPStart': IPv4Address('10.55.22.0'), 'CIDR': IPv4Network('10.55.22.0/32'), 'Source': 'New List', 'IPStop': IPv4Address('10.55.22.0')}, {'Zone Name': 'Group A', 'IPStart': IPv4Address('10.55.22.0'), 'CIDR': IPv4Network('10.55.22.0/32'), 'Source': 'New List', 'IPStop': IPv4Address('10.55.22.0')}, {'Zone Name': 'Group A', 'IPStart': IPv4Address('10.55.22.0'), 'CIDR': IPv4Network('10.55.22.0/32'), 'Source': 'New List', 'IPStop': IPv4Address('10.55.22.0')}, {'Zone Name': 'Group A', 'IPStart': IPv4Address('10.55.22.0'), 'CIDR': IPv4Network('10.55.22.0/32'), 'Source': 'New List', 'IPStop': IPv4Address('10.55.22.0')}, {'Zone Name': 'Group A', 'IPStart': IPv4Address('10.55.22.0'), 'CIDR': IPv4Network('10.55.22.0/32'), 'Source': 'New List', 'IPStop': IPv4Address('10.55.22.0')}, {'Zone Name': 'Group A', 'IPStart': IPv4Address('10.55.22.0'), 'CIDR': IPv4Network('10.55.22.0/32'), 'Source': 'New List', 'IPStop': IPv4Address('10.55.22.0')}, {'Zone Name': 'Group A', 'IPStart': IPv4Address('10.55.22.0'), 'CIDR': IPv4Network('10.55.22.0/32'), 'Source': 'New List', 'IPStop': IPv4Address('10.55.22.0')}, {'Zone Name': 'Group A', 'IPStart': IPv4Address('10.55.22.0'), 'CIDR': IPv4Network('10.55.22.0/32'), 'Source': 'New List', 'IPStop': IPv4Address('10.55.22.0')}, {'Zone Name': 'Group A', 'IPStart': IPv4Address('10.55.22.0'), 'CIDR': IPv4Network('10.55.22.0/32'), 'Source': 'New List', 'IPStop': IPv4Address('10.55.22.0')}, {'Zone Name': 'Group A', 'IPStart': IPv4Address('10.55.22.0'), 'CIDR': IPv4Network('10.55.22.0/32'), 'Source': 'New List', 'IPStop': IPv4Address('10.55.22.0')}, {'Zone Name': 'Group A', 'IPStart': IPv4Address('10.55.22.0'), 'CIDR': IPv4Network('10.55.22.0/32'), 'Source': 'New List', 'IPStop': IPv4Address('10.55.22.0')}, {'Zone Name': 'Group A', 'IPStart': IPv4Address('10.55.22.0'), 'CIDR': IPv4Network('10.55.22.0/32'), 'Source': 'New List', 'IPStop': IPv4Address('10.55.22.0')}, {'Zone Name': 'Group A', 'IPStart': IPv4Address('10.55.22.0'), 'CIDR': IPv4Network('10.55.22.0/32'), 'Source': 'New List', 'IPStop': IPv4Address('10.55.22.0')}, {'Zone Name': 'Group A', 'IPStart': IPv4Address('10.55.22.0'), 'CIDR': IPv4Network('10.55.22.0/32'), 'Source': 'New List', 'IPStop': IPv4Address('10.55.22.0')}, {'Zone Name': 'Group A', 'IPStart': IPv4Address('10.55.22.0'), 'CIDR': IPv4Network('10.55.22.0/32'), 'Source': 'New List', 'IPStop': IPv4Address('10.55.22.0')}, {'Zone Name': 'Group A', 'IPStart': IPv4Address('10.55.22.0'), 'CIDR': IPv4Network('10.55.22.0/32'), 'Source': 'New List', 'IPStop': IPv4Address('10.55.22.0')}, {'Zone Name': 'Group A', 'IPStart': IPv4Address('10.55.22.0'), 'CIDR': IPv4Network('10.55.22.0/32'), 'Source': 'New List', 'IPStop': IPv4Address('10.55.22.0')}, {'Zone Name': 'Group A', 'IPStart': IPv4Address('10.55.22.0'), 'CIDR': IPv4Network('10.55.22.0/32'), 'Source': 'New List', 'IPStop': IPv4Address('10.55.22.0')}, {'Zone Name': 'Group A', 'IPStart': IPv4Address('10.55.22.0'), 'CIDR': IPv4Network('10.55.22.0/32'), 'Source': 'New List', 'IPStop': IPv4Address('10.55.22.0')}, {'Zone Name': 'Group A', 'IPStart': IPv4Address('10.55.22.0'), 'CIDR': IPv4Network('10.55.22.0/32'), 'Source': 'New List', 'IPStop': IPv4Address('10.55.22.0')}, {'Zone Name': 'Group A', 'IPStart': IPv4Address('10.55.22.0'), 'CIDR': IPv4Network('10.55.22.0/32'), 'Source': 'New List', 'IPStop': IPv4Address('10.55.22.0')}, {'Zone Name': 'Group A', 'IPStart': IPv4Address('10.55.22.0'), 'CIDR': IPv4Network('10.55.22.0/32'), 'Source': 'New List', 'IPStop': IPv4Address('10.55.22.0')}]

以前的代码使用DictWriter写行而不是附加到列表。它是“write.writerow（line3）”，而不是现在的SubOut1.append(subwr)或同一个东西：SubOut1.append(line3)。

有人可以帮我找出为什么它不会将正确的值附加到SubOut1以及如何解决它？

谢谢

+0

这是很多的代码来读取 - 如果您稍微减少一些代码并尝试更加简明扼要地表达问题（相对于通常的“请为此问题提供上下文”的问题），您可能会有更多的运气。 –

+2

您可以制作一个[简短，独立，正确（可编译），示例]（http://sscce.org/）？这是很多代码需要通过的。 “通过更清楚地确定问题发生的位置，您刚刚迈出了解决问题的重要一步，突出问题来源的过程本身可以帮助您解决问题，您可以更仔细地查看零件你切断了，这样做，发现问题。“ –

+0

好的，我现在会尽力去做。 – CircuitB0T

答

TL; DR。

这就是说，这一行看起来非常可疑：

subwr=line3

我认为这则应该：

subwr=line3.copy()

的问题是，在Python对象总是引用，所以如果你做以下：

SubOut1 = [] 
line3 = {} 

line3[0] = "usefuldata" 
subwr = line3 
SubOut1.append(subwr) 

line3[0] = "uselessdata" 

print SubOut1

而且你会得到{0:"useless data"}。因为所有subwr,line3和SubOut1[0]都是对同一个对象的引用。如果你修改这个对象，你将能够在任何地方看到变化。

将作业替换为subwr = line3.copy()，您将获得预期结果。

部分题外话注：这是一样的道理，为什么你不应该这样做来初始化列表：

a = b = c = []

但你必须要做到这一点，而不是：

a = [] 
b = [] 
c = []

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