How to modify a column of iCal in Python

[nuhkoca]

Hello,

I already asked this question on SO abut I think it is quite intensive because I haven't got an answer yet so I thought it'd be better to raise here. Would appreciate if you can solve my problem.

I am pulling absences from an ics file. The summary column includes employee name like so:

[Absences] John Doe (half day)

I have a regex pattern below that helps extract employee name from such a complex string given:

name_extractor = re.compile("(?:\[.*\]\s*)?([^\(]+)(?<![\ ])", re.VERBOSE)

Having said all those, I'd like to have a modified summary column in for loop instead. However, I deadlock in how to manipulate the summary column only but to keep others as they are just before proceeding the next lines. I tried below but I am only having the modified summary column instead of an entire vevent object inside for loop.

cal = filter(
    lambda c: c.name == 'VEVENT',
    icalendar.Calendar.from_ical(ics_string).walk()
)
    
cal = map(
    lambda c: name_extractor.search(c.get('summary')).groups()[0],
    cal
)

for vevent in cal:
    summary = str(vevent.get('summary')) # -> This is still unformatted like above [Absences] John Doe (half day)
 ...
rest of code

[angatha]

@nuhkoca is this still relevant? Does the code at least run for you without an axception? Since vevent has type str, I expect the get call to fail. But that is not the original problem, right?

[niccokunzmann]

Can you give is the link to stackoverflow?

[angatha]

Ah SO ist stackoverflow. Thanks @niccokunzmann

[nuhkoca]

Hey @niccokunzmann and @angatha sorry I quit working on it quite a long time ago so I don't remember details 😕 But the SO link is: https://stackoverflow.com/questions/70468922/how-to-modify-a-column-of-ical-in-python

[niccokunzmann]

I close this issue as it is not applicable to you and an answer can be posted on SO. Feel free to re-open it, if you find it useful.
Thanks @nuhkoca @angatha!