{"library":"requests-ntlm2","title":"requests-ntlm2: NTLM Authentication for Requests","description":"requests-ntlm2 is a Python library that provides HTTP NTLM authentication support for the popular `requests` library. It is a fork of `requests-ntlm`, offering extended functionality, especially for NTLM proxy and server authentication. Currently at version 6.6.0, the library is actively maintained with regular updates to support modern Python environments and security protocols.","language":"python","status":"active","last_verified":"Mon May 18","install":{"commands":["pip install requests-ntlm2"],"cli":null},"imports":["from requests_ntlm2 import HttpNtlmAuth","from requests_ntlm2 import HttpNtlmAdapter","from requests_ntlm2 import NtlmCompatibility"],"auth":{"required":false,"env_vars":[]},"quickstart":{"code":"import requests\nfrom requests_ntlm2 import HttpNtlmAuth\nimport os\n\n# Replace with your NTLM domain, username, and password\nNTLM_USERNAME = os.environ.get('NTLM_USERNAME', 'DOMAIN\\\\username')\nNTLM_PASSWORD = os.environ.get('NTLM_PASSWORD', 'password')\nTARGET_URL = os.environ.get('TARGET_URL', 'http://ntlm_protected_site.com')\n\n# Basic NTLM authentication\ntry:\n    auth = HttpNtlmAuth(NTLM_USERNAME, NTLM_PASSWORD)\n    response = requests.get(TARGET_URL, auth=auth)\n    response.raise_for_status() # Raise an exception for bad status codes\n    print(f\"Successfully authenticated to {TARGET_URL}. Status: {response.status_code}\")\n    # print(response.text[:200]) # Print first 200 characters of content\nexcept requests.exceptions.RequestException as e:\n    print(f\"Error during basic NTLM authentication: {e}\")\n\n# Using with a Session for efficiency (recommended for multiple requests)\nfrom requests import Session\nsession = Session()\nsession.auth = HttpNtlmAuth(NTLM_USERNAME, NTLM_PASSWORD)\n\ntry:\n    session_response = session.get(TARGET_URL)\n    session_response.raise_for_status()\n    print(f\"Successfully authenticated with session to {TARGET_URL}. Status: {session_response.status_code}\")\nexcept requests.exceptions.RequestException as e:\n    print(f\"Error during session NTLM authentication: {e}\")","lang":"python","description":"This quickstart demonstrates basic NTLM authentication with `requests-ntlm2` using `HttpNtlmAuth`. It also shows the recommended approach of using it with a `requests.Session` for improved efficiency and connection pooling. Replace placeholder environment variables with your actual NTLM credentials and target URL.","tag":null,"tag_description":null,"last_tested":null,"results":[]},"compatibility":{"tag":null,"tag_description":null,"last_tested":"2026-05-18","installed_version":"6.6.0","pypi_latest":"6.6.0","is_stale":false,"summary":{"python_range":"3.10–3.9","success_rate":100,"avg_install_s":3.1,"avg_import_s":0.87,"wheel_type":"wheel"},"results":[{"runtime":"python:3.10-alpine","python_version":"3.10","os_libc":"alpine (musl)","variant":"requests-ntlm2","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":null,"import_time_s":0.79,"mem_mb":12.5,"disk_size":"38.1M"},{"runtime":"python:3.10-slim","python_version":"3.10","os_libc":"slim (glibc)","variant":"requests-ntlm2","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":3.2,"import_time_s":0.59,"mem_mb":12.5,"disk_size":"38M"},{"runtime":"python:3.11-alpine","python_version":"3.11","os_libc":"alpine (musl)","variant":"requests-ntlm2","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":null,"import_time_s":1.16,"mem_mb":13.9,"disk_size":"40.4M"},{"runtime":"python:3.11-slim","python_version":"3.11","os_libc":"slim (glibc)","variant":"requests-ntlm2","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":3,"import_time_s":1.05,"mem_mb":13.9,"disk_size":"41M"},{"runtime":"python:3.12-alpine","python_version":"3.12","os_libc":"alpine (musl)","variant":"requests-ntlm2","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":null,"import_time_s":0.91,"mem_mb":13.7,"disk_size":"32.1M"},{"runtime":"python:3.12-slim","python_version":"3.12","os_libc":"slim (glibc)","variant":"requests-ntlm2","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":2.6,"import_time_s":0.98,"mem_mb":13.7,"disk_size":"32M"},{"runtime":"python:3.13-alpine","python_version":"3.13","os_libc":"alpine (musl)","variant":"requests-ntlm2","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":null,"import_time_s":0.93,"mem_mb":14.1,"disk_size":"31.8M"},{"runtime":"python:3.13-slim","python_version":"3.13","os_libc":"slim (glibc)","variant":"requests-ntlm2","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":2.7,"import_time_s":0.93,"mem_mb":15,"disk_size":"32M"},{"runtime":"python:3.9-alpine","python_version":"3.9","os_libc":"alpine (musl)","variant":"requests-ntlm2","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":null,"import_time_s":0.71,"mem_mb":12.3,"disk_size":"38.0M"},{"runtime":"python:3.9-slim","python_version":"3.9","os_libc":"slim (glibc)","variant":"requests-ntlm2","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":3.9,"import_time_s":0.67,"mem_mb":12.3,"disk_size":"38M"}]}}