Remove ZIP download feature to fix import error

README.md

@@ -31,7 +31,6 @@ Spells collected:
 - The app will save any provided recordings to `recordings/` as 16 kHz mono WAVs named: `<spell>_<username>_<timestamp>.wav`.
 - A live counter shows how many spells are selected (recorded/uploaded) before submitting.
 - A CSV log is written to `recordings/log.csv` with columns: `timestamp_ms, session_id, username, spell, filename`.
-- You can prepare a ZIP of this session's saved files if you enter the correct download key.
 
 ## Run locally
 
@@ -62,14 +61,6 @@ Notes:
 - Microphone recording is enabled in the browser; no need to upload.
 - If you need more durable storage or collaboration, consider pushing saved WAVs to a dataset repo programmatically.
 
-### Enable password-protected ZIP download
-
-Set a Space secret so only people with the key can generate a ZIP of their session files:
-
-- Go to your Space → Settings → Variables and secrets
-- Add a secret named `ZIP_DOWNLOAD_KEY` with your chosen value
-- In the app UI, paste that key into the "Download Key" field before clicking "Prepare ZIP"
-
 ## Privacy and consent
 - Only collect voices from people who consent to being recorded.
 - Consider informing contributors how their audio will be used and stored.

app.py

@@ -4,7 +4,6 @@ import time
 import math
 import csv
 import uuid
-import zipfile
 from typing import List, Tuple, Optional
 
 import numpy as np
@@ -15,8 +14,6 @@ from scipy.signal import resample_poly
 # Output directory for saved recordings
 OUT_DIR = "recordings"
 os.makedirs(OUT_DIR, exist_ok=True)
-ZIP_DIR = os.path.join(OUT_DIR, "zips")
-os.makedirs(ZIP_DIR, exist_ok=True)
 LOG_CSV = os.path.join(OUT_DIR, "log.csv")
 
 # Fixed target sample rate for ML training
@@ -170,25 +167,6 @@ def count_selected(
     return f"Selected: {n}/6"
 
 
-def prepare_zip(download_key: str, session_files: List[str]) -> Tuple[Optional[str], str]:
-    expected = os.getenv("ZIP_DOWNLOAD_KEY", "")
-    if not expected:
-        return None, "Download disabled: ZIP_DOWNLOAD_KEY not set in environment."
-    if (download_key or "").strip() != expected:
-        return None, "Invalid key. Please enter the correct download key."
-    files = [p for p in (session_files or []) if p and os.path.exists(p)]
-    if not files:
-        return None, "No files in this session to zip. Submit recordings first."
-
-    session_id = uuid.uuid4().hex[:8]
-    ts = int(time.time() * 1000)
-    zip_path = os.path.join(ZIP_DIR, f"submissions_{session_id}_{ts}.zip")
-    with zipfile.ZipFile(zip_path, mode="w", compression=zipfile.ZIP_DEFLATED) as zf:
-        for f in files:
-            zf.write(f, arcname=os.path.basename(f))
-    return zip_path, f"Prepared ZIP with {len(files)} files."
-
-
 def build_ui() -> gr.Blocks:
     with gr.Blocks(title="Spell Recorder") as demo:
         gr.Markdown("""
@@ -222,14 +200,6 @@ def build_ui() -> gr.Blocks:
         result = gr.Markdown()
         submitted_count = gr.Number(label="New files saved this submit", value=0)
 
-        # Download section (password-gated)
-        with gr.Row():
-            download_key = gr.Textbox(label="Download Key", type="password", placeholder="Enter key to enable ZIP download")
-        with gr.Row():
-            zip_btn = gr.Button("Prepare ZIP of my session files")
-            zip_file = gr.File(label="Download ZIP", interactive=False)
-        zip_status = gr.Markdown()
-
         submit.click(
             fn=submit_recordings,
             inputs=[username, lumos, nox, alohomora, wingardium, accio, reparo, session_id, session_files],
@@ -244,20 +214,12 @@ def build_ui() -> gr.Blocks:
                 outputs=[selected_counter],
             )
 
-        # Prepare ZIP on demand (password protected)
-        zip_btn.click(
-            fn=prepare_zip,
-            inputs=[download_key, session_files],
-            outputs=[zip_file, zip_status],
-        )
-
         gr.Markdown("""
         Notes:
         - Files are saved in the app's `recordings/` folder using: `<spell>_<username>_<timestamp>.wav`.
         - 16 kHz mono WAV is used to make model training consistent.
         - You don't have to record all spells at once—submit whatever you have.
         - A CSV log is kept at `recordings/log.csv` with username, spell, timestamp, filename.
-        - To enable ZIP download, set the secret env var `ZIP_DOWNLOAD_KEY` in your Space Settings → Variables & secrets.
         """)
 
     return demo