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Project description
Emailed Before
A simple Python library for keeping track when emails about some topics were sent.
Installation
You can install the library from PyPI.
pip install emailed-before
Usage
First construct a SentEmails
instance:
from emailedbefore import SentEmails
sent_emails = SentEmails(sqlite_file)
sqlite_file
is the path to a Sqlite3 file. It will be created if it doesn't exist yet.
You can then register the fact that an email has been sent.
email = "someone@example.com"
topic = "Your library books are due"
sent_emails.register(email, topic)
To find out when emails about a topic were sent you can use the sent_at
method, which returns a list of datetimes. The list is ordered.
from datetime import datetime, timedelta
# Remind the user about those books again after a week.
datetimes = sent_emails.sent_at(email, topic)
if len(datetimes) and datetime.now() - datetimes[-1] > timedelta(days=7):
... # email the user
For convenience, there is also a method last_sent_at
which returns the datetime when the last email was sent (or None
if no email has been sent). So the previous code example can be rewritten as:
from datetime import datetime, timedelta
# Remind the user about those books again after a week.
last_sent = sent_emails.last_sent_at(email, topic)
if last_sent and datetime.now() - last_sent > timedelta(days=7):
... # email the user
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