CODEWITHSUNDEEP
regexpython-3.7
MareikeP
MareikeP

Reputation: 186

How do I print several timestamps from a transcript?

I am trying to print all existing timestamps from a transcript (.txt file).

A short extract from the transcript:

36
00:01:36,990 --> 00:01:39,119
Text...

37
00:01:39,119 --> 00:01:41,759
Text...

38
00:01:41,759 --> 00:01:43,799
Text...

My code looks like this so far:

import re
timestamps = []
linenum = 0
pattern = re.compile(r"\d{2}:\d{2}:\d{2},\d{3}\s-->\s\d{2}:\d{2}:\d{2},\d{3}")
for line in transcript:
    linenum += 1
    if pattern.search(line) != None:
        timestamps.append(linenum, line.rstrip('\n'))
print(timestamps)

The output is... nothing. No error or anything else. But I wish to print out all lines that contain timestamps.

I don't know what's wrong with the code or how to fix that. Can anyone please help? It'd be much appreciated.

Thank you!

Upvotes: 2

Views: 80

Answers (1)

Wiktor Stribiżew
Wiktor Stribiżew

Reputation: 627082

You need to append either tuples or lists to the timestamps list.

import re
timestamps = []
linenum = 0
pattern = re.compile(r"\d{2}:\d{2}:\d{2},\d{3}\s-->\s\d{2}:\d{2}:\d{2},\d{3}")
for line in transcript:
    linenum += 1
    if pattern.search(line):
        timestamps.append((linenum, line.rstrip('\n')))
print(timestamps)

See the Python demo.

With the input like

12:12:12,234 --> 12:13:46,346
Blah
12:14:12,121 --> 12:15:89,678
Blah2

The output is

[(1, '12:12:12,234 --> 12:13:46,346'), (3, '12:14:12,121 --> 12:15:89,678')]

Upvotes: 1

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