{"library":"multipart","title":"Multipart Parser","description":"The `multipart` library (v1.3.1) provides a robust parser for `multipart/form-data` requests, commonly used in web applications for handling file uploads and complex form submissions. It supports both synchronous and asynchronous parsing, making it suitable for various web frameworks. The project is actively maintained with periodic security updates.","language":"python","status":"active","last_verified":"Wed May 13","install":{"commands":["pip install multipart"],"cli":null},"imports":["from multipart import parse_form","from multipart import parse_form_async","from multipart import create_form"],"auth":{"required":false,"env_vars":[]},"quickstart":{"code":"import io\nfrom multipart import parse_form\n\n# Simulate a multipart/form-data request body\nboundary = \"----WebKitFormBoundaryXYZ\"\nbody_data = f\"\"\"--{boundary}\nContent-Disposition: form-data; name=\"username\"\n\ntestuser\n--{boundary}\nContent-Disposition: form-data; name=\"filefield\"; filename=\"example.txt\"\nContent-Type: text/plain\n\nThis is a test file content.\n--{boundary}--\n\"\"\"\n\n# Prepare the input for parse_form\nbody_bytes = body_data.encode('utf-8')\ncontent_type = f\"multipart/form-data; boundary={boundary}\"\ncontent_length = len(body_bytes)\n\n# Create a file-like object (BytesIO for in-memory bytes)\nbody_stream = io.BytesIO(body_bytes)\n\n# Parse the form\nform, files = parse_form(body_stream, content_type, content_length)\n\n# Access parsed data\nprint(\"Form fields:\")\nfor name, value_list in form.items():\n    # Form fields can have multiple values, parse_form returns a list for each.\n    print(f\"  {name}: {', '.join(value.decode('utf-8') for value in value_list)}\")\n\nprint(\"\\nFiles:\")\nfor name, file_list in files.items():\n    for file_item in file_list:\n        print(f\"  Field Name: {file_item.field_name}\")\n        print(f\"  Filename: {file_item.filename}\")\n        print(f\"  Content Type: {file_item.content_type}\")\n        print(f\"  Content (first 50 chars): {file_item.file.read()[:50].decode('utf-8')}\")\n        file_item.file.close() # Crucial to close the file-like object","lang":"python","description":"This example demonstrates how to parse a `multipart/form-data` request body using `multipart.parse_form`. It simulates an HTTP request by creating an `io.BytesIO` object for the body and specifying `Content-Type` and `Content-Length` headers. The parsed data is returned as `form` (text fields) and `files` (file fields), which are then iterated over.","tag":null,"tag_description":null,"last_tested":"2026-04-24","results":[{"runtime":"python:3.10-alpine","exit_code":1},{"runtime":"python:3.10-slim","exit_code":1},{"runtime":"python:3.11-alpine","exit_code":1},{"runtime":"python:3.11-slim","exit_code":1},{"runtime":"python:3.12-alpine","exit_code":1},{"runtime":"python:3.12-slim","exit_code":1},{"runtime":"python:3.13-alpine","exit_code":1},{"runtime":"python:3.13-slim","exit_code":1},{"runtime":"python:3.9-alpine","exit_code":1},{"runtime":"python:3.9-slim","exit_code":1}]},"compatibility":{"tag":null,"tag_description":null,"last_tested":"2026-05-13","installed_version":"1.3.1","pypi_latest":"1.3.1","is_stale":false,"summary":{"python_range":"3.10–3.9","success_rate":50,"avg_install_s":1.5,"avg_import_s":null,"wheel_type":"wheel"},"results":[{"runtime":"python:3.10-alpine","python_version":"3.10","os_libc":"alpine 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