[cleanup] Misc cleanup and refactor (#2173)

[test] Convert warnings into errors

* And fix some existing warnings

Authored by: fstirlitz

[docs] Improve embedding docs and other minor fixes

[niconico] Set `expected_protocol` to a public field

Closes #3440

[downloader/fragment] Make single thread download work for --live-from-start (#3446)

Authored by: Lesmiscore

Fix `--skip-unavailable-fragments`

Bug in d71fd412495af9ebccef807379859a0baa97ddee
Closes #3437

[utils] Fix WebSocketsWrapper

Bug in 3cea3edd1ac1101bd709dfa0305509028118b163
Closes #3422

Do not change fragment chunk-size when `--test`

Closes #3434

[youtube] Fix episode metadata extraction

[chingari] Fix archiving and tests

[spotify] Detect iframe embeds (#3430)

Authored by: fstirlitz

[facebook] Improve thumbnail extraction (#3392)

Authored by: Wikidepia

Fix bug in 66cf3e1001b6d9a2829fe834c3f9103b0890918e

[EmbedSubtitle] Enable for more video extensions

Closes #3382

[utils] certifi: Make sure the pem file exists

Closes #3353

[cleanup] Misc cleanup (#2173)

Authored by: fstirlitz, pukkandan

[cleanup] Sort imports

Using https://github.com/PyCQA/isort

    isort -m VERTICAL_HANGING_INDENT --py 36 -l 80 --rr -n --tc .

[cleanup] Upgrade syntax

Using https://github.com/asottile/pyupgrade

1. `__future__` imports and `coding: utf-8` were removed
2. Files were rewritten with `pyupgrade --py36-plus --keep-percent-format`
3. f-strings were cherry-picked from `pyupgrade --py36-plus`

Extractors are left untouched (except removing header) to avoid unnecessary merge conflicts

[cleanup] Mark some compat variables for removal (#2173)

Authored by fstirlitz, pukkandan

[cleanup] Remove unused code paths (#2173)

Notes:

* `_windows_write_string`: Fixed in 3.6
  * https://bugs.python.org/issue1602
  * PEP: https://www.python.org/dev/peps/pep-0528

* Windows UTF-8 fix: Fixed in 3.3
  * https://bugs.python.org/issue13216

* `__loader__`: is always present in 3.3+
  * https://bugs.python.org/issue14646

* `workaround_optparse_bug9161`: Fixed in 2.7
  * https://bugs.python.org/issue9161

Authored by: fstirlitz

[cleanup] Remove unused scripts/tests (#2173)

Authored by fstirlitz, pukkandan

[FFmpegMetadataPP] Remove `\0` from metadata

[Gofile] Fix extraction (#3386)

Closes #3380
Authored by: mehq

[youtube] Add `:ytnotifications` extractor (#3347)

Authored by: krichbanana

[cookies] Report progress when importing cookies

[youtube, cleanup] Minor refactoring

Authored by: coletdjnz, pukkandan

[EmbedThumbnail] Do not remove id3v1 tags

[utils] locked_file: Do not give executable bits for newly created files

Authored by: Lesmiscore

[utils] `sanitize_path`: Fix when path is empty string

[rai] Add `release_year`

Closes #2319

[ZEE5] Fix extractor.
Authored by: Ashish0804
Closes: https://github.com/yt-dlp/yt-dlp/issues/3105

[version] update

Created by: pukkandan

:ci skip all

Release 2022.04.08

[bilibili] Fix extraction of title with quotes (#3350)

Closes #3289
Authored by: dzek69

[TikTokVM] Fix redirect to user URL

Closes #3349, Closes #3351

[docs] Minor improvements (#3309, #3343)

Authored by: cffswb, danielyli

Co-authored-by: Daniel Li <redacted>
Co-authored-by: cffswb <redacted>

De-prioritize automatic-subtitles when no `--sub-lang` is given

Closes #3314

[Jable] Add extractor (#3341)

Closes #3284
Authored by: mehq

[Zattoo] Fix extractors (#2288)

Closes: #1244
Authored by: goggle

[NRK] Extract timestamp (#3231)

Closes #3211
Authored by: hatienl0i261299

[Piapro] Extract description with break lines

Authored by: Lesmiscore
Closes #3334

Ignore `mhtml` formats from `-f mergeall`

Closes #3324

[AfreecaTV] Add `AfreecaTVUserIE` (#3286)

Closes #3257
Authored by: hatienl0i261299

[FfmpegMetadata] Write id3v1 tags

[youtube] Fix uploader for collaborative playlists (#3332)

Authored by: coletdjnz

[TVer] Fix extractor (#3268)

Authored by: Lesmiscore

[test] Add `test_locked_file`

[utils] locked_file: Fix non-blocking non-exclusive lock

[utils] locked_file: Do not truncate files before locking (#2994)

Authored by: jakeogh, pukkandan

[twitcasting] Don't return multi_video for archive with single hls manifest (#3319)

Authored by: Lesmiscore

[Moviepilot] Add extractor (#3282)

Authored by: panatexxa

[fptplay] Fix metadata extraction (#3218)

Authored by: hatienl0i261299

Do not lock downloading file on Windows

Closes #3124

Do not prevent download if locking is unsupported

Closes #3022

Failure to lock download-archive is still fatal.
This is consistent with youtube-dl's behavior

[http] Fix #3215

[cleanup] Misc fixes

Closes https://github.com/yt-dlp/yt-dlp/pull/3213, Closes https://github.com/yt-dlp/yt-dlp/pull/3117

Related: https://github.com/yt-dlp/yt-dlp/issues/3146#issuecomment-1077323114, https://github.com/yt-dlp/yt-dlp/pull/3277#discussion_r841019671, https://github.com/yt-dlp/yt-dlp/commit/a825ffbffa0bea322e3ccb44c6f8e01d8d9572fb#commitcomment-68538986, https://github.com/yt-dlp/yt-dlp/issues/2360, https://github.com/yt-dlp/yt-dlp/commit/5fa3c9a88f597625296981a4a26be723e65d4842#r70393519, https://github.com/yt-dlp/yt-dlp/commit/5fa3c9a88f597625296981a4a26be723e65d4842#r70393254

[ruutu] Detect embeds (#3294)

Authored by: tpikonen

[crunchyroll:playlist] Implement beta API (#2955)

Closes #3121, #2930

Authored by: tejing1

[TikTok] Fix URLs with user id (#3295)

Closes #3243
Authored by: hatienl0i261299

[cleanup] Use `_html_extract_title`

Fallback to video-only format when selecting by extension

Closes #3296

Fix filepath sanitization in `--print-to-file`

[Imdb] Improve extractor (#3291)

Closes #3283
Authored by: hatienl0i261299

[Cybrary] Add extractor (#3264)

Authored by: aaearon

[openrec] Download archived livestreams (#3267)

Authored by: Lesmiscore

[elonet] Rewrite extractor (#3277)

Closes #2911
Authored by: Fam0r, pukkandan

[tenplay] Improve extractor (#3280)

Authored by: aarubui

[youtube:tab] Minor improvements (See desc)

* Support shorts on channel homepage
* Extract thumbnail of OLAK playlists

[youtube:search] Support hashtag entries (#3265)

Authored-by: coletdjnz

[web.archive:youtube] Make CDX API requests non-fatal

Partial fix for https://github.com/yt-dlp/yt-dlp/issues/3278
Authored-by: coletdjnz

[rai] Fix extraction of http formats (#3272)

Closes #3270
Authored by: nixxo

[Nebula] Fix bug in 52efa4b31200119adaa8acf33e50b84fcb6948f0

[niconico] Fix extraction of thumbnails and uploader (#3266)

[utils] `traverse_obj`: Allow filtering by value

[utils] Add `try_call`

[BRMediathek] Fix VALID_URL

Closes #2466

[AZMedien] Support `tv.telezueri.ch` (#3251)

Authored by: goggle

[Craftsy] Add extractor (#3208)

Authored by: Bricio

[viu] Fix bypass for preview (#3247)

Authored by: zackmark29

[crunhyroll] Fix inheritance

https://github.com/yt-dlp/yt-dlp/pull/2955#issuecomment-1083060465

[docs] Clarify the exact `BSD` license of dependencies (#3197)

Authored by: MrRawes

[docs] Add an `.editorconfig` file (#3220)

Authored by: fstirlitz

[xnxx] Add `xnxx3.com` (#3188)

Authored by: rozari0

[dailymotion] Support `geo.dailymotion.com` (#3230)

Closes #3229
Authored by: hatienl0i261299

Fix bug in 8a7f68d0b12d0f4910a15b59a3ec090bbf83b6f2

Closes #3241

[YouTube] Add new age-gate bypass (#3233)

Closes #3182
Authored by: zerodytrash, pukkandan

[ffmpeg] Cache version data

Related: https://github.com/dasl-/pifi/issues/9

[WasdTV] Add extractor (#3045)

Closes #3041
Authored by: un-def, hatienl0i261299

[viki] Don't attempt to modify URLs with signature (#3222)

Closes #1379
Authored by: nyuszika7h

[BiliIntl] Support user-generated videos (#3203)

Authored by: wlritchi

Fix `--no-overwrite` for playlist infojson

Fixes: https://github.com/yt-dlp/yt-dlp/issues/1467#issuecomment-1079922971

[utils] Add `filter_dict`

[youtube:tab] Fix duration extraction for shorts (#3171)

Related: https://github.com/TeamNewPipe/NewPipe/issues/8034
Authored-by: coletdjnz

[go,viu] Extract subtitles from the m3u8 manifest (#3219)

Authored by: fstirlitz

[ITProTV] Add extractor (#3196)

Authored by: aaearon

[BanBye] Add extractor (#3177)

Closes #3175
Authored by: mehq

[youtube] Fix auto-translated automatic captions

d49669acad71f640ffd8b78f0ea7911ae1f67720 only covered ASR

Closes #2956

[youtube] Add extractor-arg to skip auto-translated subs

Show warning when all media formats have DRM

Related: #1379

[youtube] Detect DRM better

Authored by: shirt-dev