Pass dict as an argument over SSH to Python script

Question

I am trying to pass dict arguments using the ssh command via the os module:

os.system(f'ssh remote_host python -u - {dict1} {dict2} < local_script.py')

I am getting an error:

sh:line:0 syntax error near unexpected token ('

What is the right syntax to pass dict as an argument?

If I pass string instead of dict, it works fine.

Any suggestions?

Thank you. Yes, i tried like this, in dict "datatime" object is available and it is not able to serialize in json — Jagadeesh, Sep 13 '20 at 02:52
For datetime problem, convert ```datetime``` object to string using ```strftime``` — drd, Sep 13 '20 at 03:04
Thank you! as suggested i used strftime and later i used strptime to get datetime object — Jagadeesh, Sep 13 '20 at 05:54
Related question: [How to pass dictionary as command line argument to Python script?](https://stackoverflow.com/q/18006161/850848) — Martin Prikryl, Nov 18 '20 at 08:33

Kavindu Pasan Kavithilaka · Accepted Answer · 2020-09-13T04:04:27.807

Use json and urlencode.

import urllib.parse
import json
dict1_j = urllib.parse.quote(json.dumps(dict1))
dict2_j = urllib.parse.quote(json.dumps(dict2))
os.system(f'ssh remote_host python -u - {dict1_j} {dict2_j} < local_script.py')

And you can use urldecode and json pharse to decode this in local_script.py

import json 
import urllib.parse 
dict1 = json.loads(urllib.parse.unquote(sys.argv[1])) 
dict2 = json.loads(urllib.parse.unquote(sys.argv[2]))

Pass dict as an argument over SSH to Python script

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