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description: "Open source software Python packages for the Python Calendaring Ecosystem, including iCalendar, CalDAV, JMAP, and other packages. Funded through a generous grant from NLnet's NGI Zero program."
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      The standards compliant, integrated Python calendar packages
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      <a href="/software" class="btn btn-primary">Browse software</a>
      <a href="/about" class="btn btn-secondary">About the project</a>
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          The Python Calendaring Ecosystem (PCE) is an actively developed and maintained collection of integrated free and open source Python packages.
          For trusted, reliable implementations of recurring or one-time events, scheduling, notifications and alarms, participants, timezones, and other calendar components, the PCE is the best choice.
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          Parts of this software run in millions of installations that depend on calendaring features, including home automation, health and fitness trackers, time keeping, work scheduling, and most importantly remembering your loved ones' birthdays.
          You can use any part of the PCE to develop your own applications.
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          We're a small team of developers, with a warm, welcoming community toward contributors. <a href="https://icalendar.readthedocs.io/en/stable/contribute/" target="_blank" rel="noopener">Join us!</a>
          The PCE is supported by a generous grant through the <a href="https://nlnet.nl/NGI0" target="_blank" rel="noopener">NLnet NGI Zero</a> program, and by <a href="https://opencollective.com/python-icalendar" target="_blank" rel="noopener">donors like you</a>.
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      <h2 class="section-title">Key software</h2>
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        <a href="/software">See all software →</a>
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