Python setting dynamic value to dictionary-CodePudding

I have following sample dict format which i need to build where number, description will populate dynamically.

{
    "method": "POST",
    "headers": {},
    "body": {
      "message": {
        "messageId": 22,
        "messageVersion": 3
      },
      "number": 1112223333,
      "description": "Test Message"
    }
}

There is one file which contains number, description e.g. data.dat which contains following


1, mydecription1  
2 , mydecription2
so on...

Is there anyway to achieve this where i am replacing the number, description after reading the file..

CodePudding user response：

I think it depends on how you'll read the file. Will you use something like this?

import pandas
df =  pandas.read_csv("path_to_file")

Then with that you could iterrows like so:

for row in df.iterrows():
     your_dict["number"] = row["number"]
     your_dict["description" = row["description"]

But guess we need more info about your constraints.

CodePudding user response：

I'm assuming you're not asking us how to read your data file, and have already figured that out. I'm also assuming a lot about your workflow here. Do you need all of these dictionaries at once, or one at a time? It's not clear from your post so this is a possible approach:

from copy import deepcopy  # std lib, no need to install anything


template = {"method": "POST",
            "headers": {},
            "body": {"message": {"messageId": 22, "messageVersion": 3}}}


# Read in all your num, desc pairs
data = []
with open("my_file.DAT", "r") as f:
    for line in f.readlines():
        # get number and description
        data.append(dict(number=num, description=desc))


for data_dict in data:
    template_copy = deepcopy(template)
    template_copy["body"].update(data_dict)
    # do something with your now-complete dictionary