fix(deps): unpin youtube-transcript-api in [all] extra (broken on current PyPI)

[vincentspereira]

Problem

pip install "markitdown[all]" currently fails (or silently downgrades to ancient markitdown 0.0.2):

ERROR: Could not find a version that satisfies the requirement youtube-transcript-api~=1.0.0; extra == "all"

Root cause

The [all] extra pins youtube-transcript-api~=1.0.0 (i.e. >=1.0.0,<1.1.0), but the 1.0.x releases have been removed from PyPI - the package now jumps from 0.6.2 straight to 1.2.3. The pin is therefore unsatisfiable.

Notably, the standalone [youtube-transcription] extra is already unpinned and works fine:

youtube-transcription = ["youtube-transcript-api"]

Fix

Align [all] with the existing unpinned [youtube-transcription] extra - keep the original "require 1.x+" intent, drop the impossible upper bound:

-  "youtube-transcript-api~=1.0.0",
+  "youtube-transcript-api>=1.0.0",

Verification

• Before: pip install "markitdown[all]" -> ResolutionImpossible (or downgrade to 0.0.2).
• After: pip install "markitdown[all]" resolves cleanly and stays on the current release (verified on Python 3.14).

One-line change; no runtime code affected.

🤖 Generated with Claude Code

[suresh42326]

Hit this too — on Python 3.14, pip install 'markitdown[all]' fails to resolve because youtube-transcript-api~=1.0.0 matches no published release (PyPI jumps straight from 0.6.2 to 1.2.3+). Confirmed it's not Python-3.14-specific: the range itself is just empty on PyPI.

As a workaround, installing extras individually works fine, e.g. pip install 'markitdown[docx,pdf,youtube-transcription]', since youtube-transcription has no version pin and happily resolves to 1.2.4. This PR's fix (loosening the [all] pin) resolves it cleanly for me as well — tested with a dry-run install.