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colab-unzip-workflow

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Colab file paths after unzipping repo. Trigger when: (1) API key file not found, (2) file path errors in Colab, (3) configuring notebook paths, (4) 'yfinance fallback' despite keys existing.

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SKILL.md

name colab-unzip-workflow
description Colab file paths after unzipping repo. Trigger when: (1) API key file not found, (2) file path errors in Colab, (3) configuring notebook paths, (4) 'yfinance fallback' despite keys existing.
author Claude Code
date Sat Dec 28 2024 00:00:00 GMT+0000 (Coordinated Universal Time)

Colab Unzip Workflow - File Paths

Critical Information

When you unzip Alpaca_trading.zip in Colab, the files are at:

/content/Alpaca_trading/

NOT on Google Drive. NOT at /content/drive/MyDrive/.

API Key Files in This Repo

The repo contains these API key files:

/content/Alpaca_trading/API_key_500Paper.txt   # 500 paper account
/content/Alpaca_trading/API_key_100kPaper.txt  # 100k paper account

NOT API_key.txt. The files have specific names.

Correct Default in training.ipynb

# Cell 15 - CORRECT
API_KEYS_FILE = '/content/Alpaca_trading/API_key_500Paper.txt'

# WRONG - file doesn't exist at this path
API_KEYS_FILE = '/content/drive/MyDrive/API_key.txt'

# WRONG - file name is wrong
API_KEYS_FILE = '/content/Alpaca_trading/API_key.txt'

Failed Attempts (Critical)

Attempt Why it Failed Lesson Learned
API_KEYS_FILE = None No keys loaded, yfinance used Always set explicit path
/content/drive/MyDrive/API_key.txt File not on Drive after unzip Unzip goes to /content/, not Drive
API_key.txt (relative) Wrong working directory in Colab Use absolute paths
API_key.txt (wrong name) File is API_key_500Paper.txt Check actual filenames in repo

Colab Directory Structure After Unzip

/content/
├── Alpaca_trading/              # Unzipped repo
│   ├── API_key_500Paper.txt     # API keys (500 paper)
│   ├── API_key_100kPaper.txt    # API keys (100k paper)
│   ├── notebooks/
│   │   └── training.ipynb
│   ├── alpaca_trading/
│   │   └── ...
│   └── ...
├── drive/                       # Google Drive (if mounted)
│   └── MyDrive/
│       └── ...                  # User's Drive files
└── sample_data/                 # Colab default

How to Verify in Colab

import os

# Check what's in /content/
print(os.listdir('/content/'))
# Should show: ['Alpaca_trading', 'drive', 'sample_data']

# Check API key files
print(os.listdir('/content/Alpaca_trading/'))
# Should show: API_key_500Paper.txt, API_key_100kPaper.txt, etc.

# Verify file exists
api_path = '/content/Alpaca_trading/API_key_500Paper.txt'
print(f"File exists: {os.path.exists(api_path)}")

Key Rules

  1. After unzip: /content/Alpaca_trading/ - not Drive
  2. Check actual filenames - don't assume API_key.txt
  3. Use absolute paths - relative paths break in Colab
  4. Verify before assuming - os.path.exists() is your friend

Files Modified

notebooks/training.ipynb:
  - Cell 15: API_KEYS_FILE = '/content/Alpaca_trading/API_key_500Paper.txt'

References

  • Skill: data-source-priority - Why Alpaca API matters
  • alpaca_trading/data/fetcher.py - Key loading logic with logging