PyTitle is a subtitle manipulation library for python, it's built on top of Pydantic.

note that development of this project is just started and it's not anywhere near complete or ready for production code. use it at your own risk

what this library can do?

well, it's able to do a lot of things, and more in the future, but for now:

• search for a text or pattern in a subtitle.
• shift all the timestaps, or just one timestap to forward or backward.
• split the subtitle from an index or timestamp.
• fix common problems in a subtitle, such as:
  • re-index .srt subtitles.
  • remove or fix italic, bold and other formatting tags.
  • add coloring or other formattings to a subtitle.
  • fix enconding problems.
  • fix arabic charachters, question marks and other formattings for persian subtitles.
  • fix overlays in timestamps.

pip install pytitle

For now, the only supported subtitle format is .srt. other formats will be added to the library soon.

Open a .srt Subtitle:

from pytitle.srt import SrtSubtitle

subtitle = SrtSubtitle.open("~/path/to/subtitle.srt")

shift all the timestamps for the opened subtitle 2 seconds forward:

subtitle.shift_forward(seconds=2)

or you can shift only one line, for example the 10th line(.srt indexes start at 1):

subtitle.shift_forward(seconds=2, index=10)

and when you done editing, save the file:

subtitle.save()

the above method will override the existing file, if you want to save the file in a different place or seperately:

subtitle.save(path="~/path/to/edited_subtitle.srt")

Read the full documentation and tutorial here.

• srt
• ass
• vtt