Commit d941d514 authored by Bram Schoenmakers's avatar Bram Schoenmakers

Import the icalendar module on demand.

parent 1a75b94f
......@@ -19,15 +19,6 @@ Provides a printer that transforms a list of Todo items to an iCalendar
file according to RFC 2445.
"""
try:
import icalendar as ical
ICAL_PRESENT = True
except (SyntaxError, ImportError):
# icalendar does not support Python 3.2 resulting in a SyntaxError. Since
# this is an optional dependency, dropping Python 3.2 support altogether is
# too much. Therefore just disable the iCalendar functionality
ICAL_PRESENT = False
from datetime import datetime, time
import random
import string
......@@ -75,14 +66,23 @@ class IcalPrinter(Printer):
super(IcalPrinter, self).__init__()
self.todolist = p_todolist
try:
import icalendar
self.icalendar = icalendar
except (SyntaxError, ImportError):
# icalendar does not support Python 3.2 resulting in a SyntaxError. Since
# this is an optional dependency, dropping Python 3.2 support altogether is
# too much. Therefore just disable the iCalendar functionality
self.icalendar = None
def print_todo(self, p_todo):
return self._convert_todo(p_todo).to_ical() if ICAL_PRESENT else ""
return self._convert_todo(p_todo).to_ical() if self.icalendar else ""
def print_list(self, p_todos):
result = ""
if ICAL_PRESENT:
cal = ical.Calendar()
if self.icalendar:
cal = self.icalendar.Calendar()
cal.add('prodid', '-//bramschoenmakers.nl//topydo//')
cal.add('version', '2.0')
......@@ -118,14 +118,14 @@ class IcalPrinter(Printer):
return uid
result = ical.Todo()
result = self.icalendar.Todo()
# this should be called first, it may set the ical: tag and therefore
# change the source() output.
result['uid'] = _get_uid(p_todo)
result['summary'] = ical.vText(p_todo.text())
result['description'] = ical.vText(p_todo.source())
result['summary'] = self.icalendar.vText(p_todo.text())
result['description'] = self.icalendar.vText(p_todo.source())
result.add('priority', _convert_priority(p_todo.priority()))
start = p_todo.start_date()
......
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