Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.python > #55430 > unrolled thread

compare two list of dictionaries

Back to article view | Back to comp.lang.python

Contents

  compare two list of dictionaries Mohan L <l.mohanphy@gmail.com> - 2013-10-03 21:41 +0530
    Re: compare two list of dictionaries Tobiah <toby@tobiah.org> - 2013-10-04 12:22 -0700

#55430 — compare two list of dictionaries

[Multipart message — attachments visible in raw view] — view raw

Dear All,

I have two list of dictionaries like below:

In the below dictionaries the value of ip can be either hostname or ip
address.

output1=[
{'count': 3 , 'ip': 'xxx.xx.xxx.1'},
{'count': 4, 'ip': 'xxx.xx.xxx.2'},
{'count': 8, 'ip': 'xxx.xx.xxx.3'},
{'count': 10, 'ip': 'xxx.xx.xxx.4'},
{'count': 212, 'ip': 'hostname1'},
{'count': 27, 'ip': 'hostname2'},
{'count': 513, 'ip': 'hostname3'},
{'count': 98, 'ip': 'hostname4'},
{'count': 1, 'ip': 'hostname10'},
{'count': 2, 'ip': 'hostname8'},
{'count': 3, 'ip': 'xxx.xx.xxx.11'},
{'count': 90, 'ip': 'xxx.xx.xxx.12'},
{'count': 12, 'ip': 'xxx.xx.xxx.13'},
{'count': 21, 'ip': 'xxx.xx.xxx.14'},
{'count': 54, 'ip': 'xxx.xx.xxx.15'},
{'count': 34, 'ip': 'xxx.xx.xxx.16'},
{'count': 11, 'ip': 'xxx.xx.xxx.17'},
{'count': 2, 'ip': 'xxx.xx.xxx.18'},
{'count': 19, 'ip': 'xxx.xx.xxx.19'},
{'count': 21, 'ip': 'xxx.xx.xxx.20'},
{'count': 25, 'ip': 'xxx.xx.xxx.21'},
{'count': 31, 'ip': 'xxx.xx.xxx.22'},
{'count': 43, 'ip': 'xxx.xx.xxx.23'},
{'count': 46, 'ip': 'xxx.xx.xxx.24'},
{'count': 80, 'ip': 'xxx.xx.xxx.25'},
{'count': 91, 'ip': 'xxx.xx.xxx.26'},
{'count': 90, 'ip': 'xxx.xx.xxx.27'},
{'count': 10, 'ip': 'xxx.xx.xxx.28'},
{'count': 3, 'ip': 'xxx.xx.xxx.29'}]


In the below dictionaries have either hostname or ip or both.

output2=(

{'hostname': 'INNCHN01', 'ip_addr': 'xxx.xx.xxx.11'},
{'hostname': 'HYDRHC02', 'ip_addr': 'xxx.xx.xxx.12'},
{'hostname': 'INNCHN03', 'ip_addr': 'xxx.xx.xxx.13'},
{'hostname': 'MUMRHC01', 'ip_addr': 'xxx.xx.xxx.14'},
{'hostname': 'n/a', 'ip_addr': 'xxx.xx.xxx.15'},
{'hostname': 'INNCHN05', 'ip_addr': 'xxx.xx.xxx.16'},
{'hostname': 'hostname1', 'ip_addr': 'n/a'},
{'hostname': 'hostname2', 'ip_addr': 'n/a'},
{'hostname': 'hostname10', 'ip_addr': ''},
{'hostname': 'hostname8', 'ip_addr': ''},
{'hostname': 'hostname200', 'ip_addr': 'xxx.xx.xxx.200'},
{'hostname': 'hostname300', 'ip_addr': 'xxx.xx.xxx.400'},

)

trying to get the following difference from the above dictionary

1). compare the value of 'ip' in output1 dictionary with either 'hostname'
and 'ip_addr' output2 dictionary and print their intersection. Tried below
code:


for doc in output1:
        for row in output2:
                if((row["hostname"] == doc["ip"]) or (row["ip_addr"] ==
doc["ip"])):
                        print doc["ip"],doc["count"]

*output:*
hostname1 212
hostname2 27
hostname10 1
hostname8 2
xxx.xx.xxx.11 3
xxx.xx.xxx.12 90
xxx.xx.xxx.13 12
xxx.xx.xxx.14 21
xxx.xx.xxx.15 54
xxx.xx.xxx.16 34

2). need to print the below output if the value of 'ip' in output1
dictionary is not there in in output2 dictionary(ip/hostname which is there
in output1 and not there in output2):

 xxx.xx.xxx.1 3
 xxx.xx.xxx.2 4
 xxx.xx.xxx.3  8
 xxx.xx.xxx.4  10
 hostname3  513
 hostname4  98
 xxx.xx.xxx.17  11
 xxx.xx.xxx.18  2
 xxx.xx.xxx.19  19
 xxx.xx.xxx.20  21
 xxx.xx.xxx.21  25
 xxx.xx.xxx.22  31
 xxx.xx.xxx.23  43
 xxx.xx.xxx.24  46
 xxx.xx.xxx.25  80
 xxx.xx.xxx.26  91
 xxx.xx.xxx.27  90
 xxx.xx.xxx.28  10
 xxx.xx.xxx.29  3

3). Ip address with is there only in output2 dictionary.

xxx.xx.xxx.200
xxx.xx.xxx.400

Any help would be really appreciated. Thank you

Thanks
Mohan L

[toc] | [next] | [standalone]

#55490

On 10/03/2013 09:11 AM, Mohan L wrote:
> Dear All,
>
> I have two list of dictionaries like below:
>
> In the below dictionaries the value of ip can be either hostname or ip address.
>
> output1=[
> {'count': 3 , 'ip': 'xxx.xx.xxx.1'},
> {'count': 4, 'ip': 'xxx.xx.xxx.2'},
> {'count': 8, 'ip': 'xxx.xx.xxx.3'},
> {'count': 10, 'ip': 'xxx.xx.xxx.4'},
> {'count': 212, 'ip': 'hostname1'},
> {'count': 27, 'ip': 'hostname2'},
> {'count': 513, 'ip': 'hostname3'},
> {'count': 98, 'ip': 'hostname4'},
> {'count': 1, 'ip': 'hostname10'},
> {'count': 2, 'ip': 'hostname8'},
> {'count': 3, 'ip': 'xxx.xx.xxx.11'},
> {'count': 90, 'ip': 'xxx.xx.xxx.12'},
> {'count': 12, 'ip': 'xxx.xx.xxx.13'},
> {'count': 21, 'ip': 'xxx.xx.xxx.14'},
> {'count': 54, 'ip': 'xxx.xx.xxx.15'},
> {'count': 34, 'ip': 'xxx.xx.xxx.16'},
> {'count': 11, 'ip': 'xxx.xx.xxx.17'},
> {'count': 2, 'ip': 'xxx.xx.xxx.18'},
> {'count': 19, 'ip': 'xxx.xx.xxx.19'},
> {'count': 21, 'ip': 'xxx.xx.xxx.20'},
> {'count': 25, 'ip': 'xxx.xx.xxx.21'},
> {'count': 31, 'ip': 'xxx.xx.xxx.22'},
> {'count': 43, 'ip': 'xxx.xx.xxx.23'},
> {'count': 46, 'ip': 'xxx.xx.xxx.24'},
> {'count': 80, 'ip': 'xxx.xx.xxx.25'},
> {'count': 91, 'ip': 'xxx.xx.xxx.26'},
> {'count': 90, 'ip': 'xxx.xx.xxx.27'},
> {'count': 10, 'ip': 'xxx.xx.xxx.28'},
> {'count': 3, 'ip': 'xxx.xx.xxx.29'}]
>
>
> In the below dictionaries have either hostname or ip or both.
>
> output2=(
>
> {'hostname': 'INNCHN01', 'ip_addr': 'xxx.xx.xxx.11'},
> {'hostname': 'HYDRHC02', 'ip_addr': 'xxx.xx.xxx.12'},
> {'hostname': 'INNCHN03', 'ip_addr': 'xxx.xx.xxx.13'},
> {'hostname': 'MUMRHC01', 'ip_addr': 'xxx.xx.xxx.14'},
> {'hostname': 'n/a', 'ip_addr': 'xxx.xx.xxx.15'},
> {'hostname': 'INNCHN05', 'ip_addr': 'xxx.xx.xxx.16'},
> {'hostname': 'hostname1', 'ip_addr': 'n/a'},
> {'hostname': 'hostname2', 'ip_addr': 'n/a'},
> {'hostname': 'hostname10', 'ip_addr': ''},
> {'hostname': 'hostname8', 'ip_addr': ''},
> {'hostname': 'hostname200', 'ip_addr': 'xxx.xx.xxx.200'},
> {'hostname': 'hostname300', 'ip_addr': 'xxx.xx.xxx.400'},
>
> )
>
> trying to get the following difference from the above dictionary
>
> 1). compare the value of 'ip' in output1 dictionary with either 'hostname' and 'ip_addr' output2 dictionary and print their
> intersection. Tried below code:
>
>
> for doc in output1:
>          for row in output2:
>                  if((row["hostname"] == doc["ip"]) or (row["ip_addr"] == doc["ip"])):
>                          print doc["ip"],doc["count"]
>
> *output:*
> hostname1 212
> hostname2 27
> hostname10 1
> hostname8 2
> xxx.xx.xxx.11 3
> xxx.xx.xxx.12 90
> xxx.xx.xxx.13 12
> xxx.xx.xxx.14 21
> xxx.xx.xxx.15 54
> xxx.xx.xxx.16 34
>
> 2). need to print the below output if the value of 'ip' in output1 dictionary is not there in in output2 dictionary(ip/hostname
> which is there in output1 and not there in output2):
>
>   xxx.xx.xxx.1 3
>   xxx.xx.xxx.2 4
>   xxx.xx.xxx.3  8
>   xxx.xx.xxx.4  10
>   hostname3  513
>   hostname4  98
>   xxx.xx.xxx.17  11
>   xxx.xx.xxx.18  2
>   xxx.xx.xxx.19  19
>   xxx.xx.xxx.20  21
>   xxx.xx.xxx.21  25
>   xxx.xx.xxx.22  31
>   xxx.xx.xxx.23  43
>   xxx.xx.xxx.24  46
>   xxx.xx.xxx.25  80
>   xxx.xx.xxx.26  91
>   xxx.xx.xxx.27  90
>   xxx.xx.xxx.28  10
>   xxx.xx.xxx.29  3
>
> 3). Ip address with is there only in output2 dictionary.
>
> xxx.xx.xxx.200
> xxx.xx.xxx.400
>
> Any help would be really appreciated. Thank you
>
> Thanks
> Mohan L

There is a bit of work that can be consolidated
to help both case 2 and 3.  Then both cases are
a little more straightforward:

##################################################

import itertools

inside_out = {x['ip']: x for x in output1}

set1 = set(inside_out.keys())

### CASE 2 ###
set2 = set(itertools.chain.from_iterable([x.values() for x in output2]))
for name in set1 - set2:
         print name, inside_out[name]['count']


### CASE 3 ###
set2 = set([x['ip_addr'] for x in output2])
print "\n".join(set2 - set1)

[toc] | [prev] | [standalone]

Back to top | Article view | comp.lang.python

csiph-web