parsing text file using python for fields and their values - regex

Question

I am new to coding with python, learning it step by step. I have an assignment to parse text file and update database. The file would have some status like
ticket summary:
Frequency :
Action taken: < something like "restarted server">
Status:
I want to parse this file, fetch the values for the fields like "ticket summary","frequency" etc. and put them in the database, where columns for them are defined. I am reading through python regex and sub string parsing, but not finding how to start. Need help

Answer 1

since you haven't included an example, I will provide one to use here. I am assuming you have already installed mongodb, pymongo and have an instance of it running locally. as an example I am choosing my file to have the following formatting:
Frequency: restarted server, Action taken- none, Status: active
the code will use regex to extract the fields. for demos have a look here: regex demo
import pymongo
import re
client = pymongo.MongoClient()
db = client['some-db']
freqgroup = re.compile(r"(?P<Frequency>Frequency[\:\-]\s?).*?(?=,)", flags=re.I)
actgroup = re.compile(r"(?P<ActionTaken>Action\sTaken[\:\-]\s?).*?(?=,)", flags=re.I)
statgroup = re.compile(r"(?P<Status>Status[\:\-]\s?).*", flags=re.I)
with open("some-file.txt", "rb") as f:
for line in f:
k = re.search(freqgroup, line)
db.posts.insert_one({"Frequency": line[k.end("Frequency"):k.end()]})
k = re.search(actgroup, line)
db.posts.insert_one({"ActionTaken": line[k.end("ActionTaken"):k.end()]})
k = re.search(statgroup, line)
db.posts.insert_one({"Status": line[k.end("Status"):k.end()]})