Access fastmail caldav with python

Accessing Fastmail Caldav with Python can be done in different ways depending on your specific requirements and preferences. In this article, we will explore three different solutions to this problem, each with its own advantages and disadvantages.

Solution 1: Using the CalDAV library

The CalDAV library is a Python package that provides a high-level interface for accessing CalDAV servers, including Fastmail. To use this library, you need to install it first by running the following command:

pip install caldav

Once the library is installed, you can use it to connect to your Fastmail account and access the CalDAV server. Here is a sample code that demonstrates how to do this:

import caldav
from caldav.elements import dav, cdav

# Connect to Fastmail CalDAV server
url = ''
username = 'your_username'
password = 'your_password'
client = caldav.DAVClient(url, username=username, password=password)

# Get a list of calendars
principal = client.principal()
calendars = principal.calendars()

# Access events in a specific calendar
calendar = calendars[0]
events =

# Print event details
for event in events:

Solution 2: Using the Requests library

If you prefer a lower-level approach, you can use the Requests library to directly send HTTP requests to the Fastmail Caldav API. This gives you more control over the requests and responses, but requires more manual handling of the CalDAV protocol. Here is a sample code that demonstrates how to do this:

import requests

# Set up authentication
url = ''
username = 'your_username'
password = 'your_password'
auth = (username, password)

# Send a PROPFIND request to get a list of calendars
headers = {'Depth': '1'}
response = requests.request('PROPFIND', url, auth=auth, headers=headers)

# Parse the response XML to extract calendar URLs
# ...

# Send a REPORT request to get a list of events in a calendar
# ...

# Parse the response XML to extract event details
# ...

# Print event details
# ...

Solution 3: Using the iCalendar library

If you only need to read and write iCalendar files, you can use the iCalendar library to parse and generate iCalendar data. This library provides a simple and intuitive interface for working with iCalendar data, but does not handle the CalDAV protocol. Here is a sample code that demonstrates how to do this:

import icalendar

# Read an iCalendar file
with open('calendar.ics', 'rb') as f:
    calendar_data =

calendar = icalendar.Calendar.from_ical(calendar_data)

# Access events in the calendar
for component in calendar.walk('VEVENT'):

After exploring these three solutions, it is clear that Solution 1, using the CalDAV library, is the best option for accessing Fastmail Caldav with Python. It provides a high-level interface that abstracts away the complexities of the CalDAV protocol, making it easier to work with calendars and events. Additionally, the library is actively maintained and has good community support, ensuring that any issues or bugs are quickly addressed.

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8 Responses

    1. I respectfully disagree. Solution 1 is more efficient and versatile. It allows for greater customization and control. Dont be fooled by simplicity, sometimes complexity is necessary.

    1. I totally disagree. Solution 1 using the Scrapy framework is way more efficient and powerful. It handles complex web scraping tasks effortlessly. Dont settle for simplicity when you can have the ultimate scraping experience with Scrapy!

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