bandcamp-extract 0.4.6

Extract BandCamp .zip album folders to their appropriate place

BandCamp Album Extractor

Download and organize your bandcamp library with ease!

Install

(preferred) from pip

pip install bandcamp_extract

From github repo

To install this package simply run

pip install .

in the root of this package

Setup

After installation the extractor's binary is called bcextr.

Breaking change (0.2.0): bcextr is now a command group. What used to be bcextr <zip> is now bcextr extract <zip>.

bcextr extract works standalone with no setup. The bcextr api commands pull albums directly from your Bandcamp collection, which requires a one-time login first.

Bandcamp has no username/password API, so this reuses the same session cookie your browser already has after you log in on bandcamp.com.

1. Get your Bandcamp username

This is the name in the URL of your own collection page: https://bandcamp.com/<username>. You can find it in the account menu on bandcamp.com, or from the URL after clicking "Collection".

2. Get your identity cookie

1. Log in to bandcamp.com in your browser.
2. Open developer tools (F12, or Cmd+Opt+I on macOS).
3. Go to the Application tab in Chrome/Edge (Storage tab in Firefox), then Cookies → https://bandcamp.com in the left sidebar.
4. Find the row named identity and copy its Value column. It's a long opaque string — copy the whole thing.

This cookie is a live login credential for your account: don't share it, paste it into chat tools, or commit it anywhere. bcextr only stores it locally in ~/.config/bcextr/session.json (readable only by you).

3. Log in with bcextr

bcextr api login

You'll be prompted for your Bandcamp username and the cookie value from the steps above.

If your cookie later expires, just re-run bcextr api login with a fresh value.

Shell completion (optional)

bcextr is built on Click, which provides tab-completion for subcommands (extract, api, mv, etc.) and file/directory paths (including for --pattern, which completes like a regular folder path). Add the line for your shell to its startup file, then restart your shell (or source the file):

bash (~/.bashrc):

eval "$(_BCEXTR_COMPLETE=bash_source bcextr)"

zsh (~/.zshrc):

eval "$(_BCEXTR_COMPLETE=zsh_source bcextr)"

fish: generate the completion file once (no eval-on-startup needed):

_BCEXTR_COMPLETE=fish_source bcextr > ~/.config/fish/completions/bcextr.fish

Usage

bcextr extract

Extract a zip you already downloaded:

bcextr extract ~/Downloads/album.zip --pattern ~/Music/{artist}/{album}/{title}

Default pattern if not provided is: ./{artist}/{album}/{title}

bcextr api list / bcextr api choose

List your collection:

bcextr api list

Pick albums and extract them straight to your library:

bcextr api choose --pattern ~/Music/{albumartist}/{album}/{title} --format flac

This opens an fzf multi-select over your collection, downloads each chosen album in the requested format, and runs it through the same extract/rename logic as bcextr extract.

--format accepts one of mp3-320, mp3-v0, flac, aac-hi, vorbis, alac, wav, aiff-lossless. If omitted, you'll get a format picker (applied to the whole batch) instead.

This relies on Bandcamp's unofficial, undocumented collection API and may break if Bandcamp changes it.

bcextr mv / bcextr cp

Reorganize an existing folder of music (searched recursively, however deep the files are nested) into a pattern-based structure. mv moves the files (the originals are gone); cp copies them, leaving the originals in place:

bcextr mv ~/Music --pattern ~/New_Music/{albumartist}/{album}/{title}
bcextr cp ~/Music --pattern ~/New_Music/{albumartist}/{album}/{title}

Pattern substitution

The pattern substitution will substitute any parameter it gets in tinytag The file extension will also be added to the end of the pattern when moving the song to it's destination

tag.album         # album as string
tag.albumartist   # album artist as string
tag.artist        # artist name as string
tag.audio_offset  # number of bytes before audio data begins
tag.bitrate       # bitrate in kBits/s
tag.comment       # file comment as string
tag.composer      # composer as string 
tag.disc          # disc number
tag.disc_total    # the total number of discs
tag.duration      # duration of the song in seconds
tag.filesize      # file size in bytes
tag.genre         # genre as string
tag.samplerate    # samples per second
tag.title         # title of the song
tag.track         # track number as string
tag.track_total   # total number of tracks as string
tag.year          # year or data as string

It is important to note that any files that are not music (in the zip, or in the source folder for bcextr mv/bcextr cp) are not moved or copied to the destination folder.

Fallback fields

Some tags (like albumartist) aren't always set. Use {fieldA,fieldB} to fall back to fieldB when fieldA is missing, and chain as many comma-separated fields as you want:

bcextr extract ~/Downloads/album.zip --pattern ~/Music/{albumartist,artist}/{album}/{title}
bcextr api choose --pattern ~/Music/{albumartist,artist,genre}/{album}/{title} --format flac

Each field is tried in order and the first one with a real value wins. If none of them have a value, it resolves to an empty string rather than erroring. Referencing an unknown field name anywhere in the group (a typo, for example) still raises the usual "Param not found" error.

Path-unsafe symbols in metadata

Before substitution, every metadata value is run through pathvalidate's replace_symbol to strip characters that would otherwise break the destination path (e.g. /, :, ?). By default these are removed entirely and spaces are left alone; pass --replacement-text to substitute something else instead, and --strip-spaces to also replace spaces:

bcextr extract ~/Downloads/album.zip --pattern ~/Music/{artist}/{album}/{title} --replacement-text "_" --strip-spaces