Writing list of dictionaries to CSV

MRAB python at mrabarnett.plus.com
Tue May 5 14:11:09 EDT 2015


On 2015-05-05 18:09, Kashif Rana wrote:
> Hello Experts
>
> When I am writing list of dictionaries to CSV file, the key 'schedule' has value 'Mar 2012' becomes Mar-12. I really do not have clue why thats happening. Below is the code.
>
> dic_1 = {'action': 'permit',
>   'dst-address': 'maxprddb-scan-167, maxprddb-scan-168, maxprddb-scan-169',
>   'from': 'DMZ Web',
>   'id': '1000',
>   'log': 'Enable, session-init',
>   'name': 'Test Rule Temporary ',
>   'service': '1521, Oraccle-Maximo-Scan-1550, PING-ALL',
>   'src-address': 'sparkeregap1, sparkeregap2',
>   'to': 'Trust'}
>
Missing '=' in the next line.

> dic_2 {'action': 'permit',
>   'dst-address': 'sparkcas01, sparkcas02, email.ab.spark.net',
>   'from': 'DMZ Web',
>   'id': '4000',
>   'log': 'Enable, session-init',
>   'schedule': 'Mar 2012',
>   'service': 'SMTP',
>   'src-address': 'sparkeregap1, sparkeregap2',
>   'to': 'Trust'}
>
>   my_list =
>   [{'to': 'Trust', 'service': '1521, Oraccle-Maximo-Scan-1550, PING-ALL', 'from': 'DMZ Web', 'dst-address': 'maxprddb-scan-167, maxprddb-scan-168, maxprddb-scan-169', 'name': 'Test Rule Temporary ', 'action': 'permit', 'id': '1000', 'src-address': 'sparkeregap1, sparkeregap2', 'log': 'Enable, session-init'}, {'to': 'Trust', 'from': 'DMZ Web', 'dst-address': 'sparkcas01, sparkcas02, email.ab.spark.net', 'service': 'SMTP', 'schedule': 'Mar 2012', 'action': 'permit', 'id': '4000', 'src-address': 'sparkeregap1, sparkeregap2', 'log': 'Enable, session-init'}]
>
>   pol_keys = ['id', 'name', 'from', 'to', 'src-address', 'dst-address', 'service', 'action', 'nat_status', 'nat_type', 'nat_src_ip', 'nat_dst_ip', 'nat_dst_port', 'log', 'schedule']
>
> with open('test.csv', 'wb') as f:
> 	w = csv.DictWriter(f, pol_keys)
> 	w.writeheader()
> 	w.writerows(my_list)
>
It works OK for me.

(I'm assuming that you're reading the CSV file in a text editor, not
some other application that might be trying to be "clever" by
"interpreting" what it thinks looks a date as a date and then
displaying it differently...)




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