un-inception/clients/python/sync/examples/file_operations.py
russell@unturf.com afb179be26 fix: make requests import optional in Python sync SDK
- requests import now wrapped in try/except with REQUESTS_AVAILABLE flag
- Added DependencyError exception and _check_requests() helper
- Updated sync examples to catch ImportError and exit gracefully
- CI runner without requests will skip examples instead of failing
2026-02-08 13:18:01 -05:00

116 lines
3.3 KiB
Python

#!/usr/bin/env python3
"""
File Operations example for unsandbox Python SDK - Synchronous Version
This example demonstrates reading and writing files in sandboxed environments.
Shows temporary file creation and manipulation within the sandbox.
To run:
export UNSANDBOX_PUBLIC_KEY="your-public-key"
export UNSANDBOX_SECRET_KEY="your-secret-key"
python3 file_operations.py
Expected output:
File created at: /tmp/example.txt
File contents:
Line 1: Hello from the sandbox
Line 2: This is temporary storage
Line 3: File operations work!
Total lines written: 3
"""
import sys
import os
# Add the SDK path
sys.path.insert(0, os.path.join(os.path.dirname(__file__), "..", "src"))
try:
from un import execute_code, CredentialsError
except ImportError as e:
print(f"Missing dependency: {e}")
print("Install with: pip install requests")
sys.exit(0) # Exit gracefully for CI
def main():
"""Execute file operations code in sandbox."""
# The code to execute - demonstrates file I/O
code = """
import os
import tempfile
# Create temporary file
temp_file = "/tmp/example.txt"
try:
# Write to file
with open(temp_file, "w") as f:
f.write("Line 1: Hello from the sandbox\\n")
f.write("Line 2: This is temporary storage\\n")
f.write("Line 3: File operations work!\\n")
print(f"File created at: {temp_file}")
# Check if file exists
if os.path.exists(temp_file):
print(f"File exists: {os.path.isfile(temp_file)}")
# Get file size
file_size = os.path.getsize(temp_file)
print(f"File size: {file_size} bytes")
# Read from file
print("File contents:")
with open(temp_file, "r") as f:
lines = f.readlines()
for line in lines:
print(line.rstrip())
print(f"Total lines written: {len(lines)}")
except IOError as e:
print(f"File operation error: {e}")
except Exception as e:
print(f"Error: {e}")
"""
try:
# Resolve credentials from environment
public_key = os.environ.get("UNSANDBOX_PUBLIC_KEY")
secret_key = os.environ.get("UNSANDBOX_SECRET_KEY")
if not public_key or not secret_key:
print("Skipping: UNSANDBOX_PUBLIC_KEY and UNSANDBOX_SECRET_KEY environment variables required")
print("To run: export UNSANDBOX_PUBLIC_KEY=your-key UNSANDBOX_SECRET_KEY=your-key")
sys.exit(0) # Exit gracefully for CI
# Execute the code
print("Executing file operations in sandbox...")
result = execute_code("python", code, public_key, secret_key)
# Check for errors
if result.get("status") == "completed":
print("\n=== STDOUT ===")
print(result.get("stdout", ""))
if result.get("stderr"):
print("\n=== STDERR ===")
print(result.get("stderr", ""))
else:
print(f"Execution failed with status: {result.get('status')}")
print(f"Error: {result.get('error', 'Unknown error')}")
sys.exit(1)
except CredentialsError as e:
print(f"Credentials error: {e}")
sys.exit(1)
except Exception as e:
print(f"Error: {e}")
import traceback
traceback.print_exc()
sys.exit(1)
if __name__ == "__main__":
main()