{"record":{"id":"59721f01372c3cba","repo":"xtekky/gpt4free","slug":"install-curl-cffi-package-pip-install-u-curl-59721f","errorCode":null,"errorMessage":"Install \"curl_cffi\" package | pip install -U curl_cffi","messagePattern":"Install \"curl_cffi\" package \\| pip install -U curl_cffi","errorType":"exception","errorClass":"MissingRequirementsError","httpStatus":null,"severity":"error","filePath":"g4f/requests/__init__.py","lineNumber":67,"sourceCode":"try:\n    from .cdp import CDPSession\n\n    has_cdp = True\nexcept ImportError:\n    has_cdp = False\n\nfrom .. import debug\nfrom .raise_for_status import raise_for_status\nfrom ..errors import MissingRequirementsError\nfrom ..typing import Cookies\nfrom ..cookies import BrowserConfig, get_cookies_dir\nfrom .defaults import DEFAULT_HEADERS, WEBVIEW_HAEDERS\n\nif not has_curl_cffi:\n\n    class Session:\n        def __init__(self, **kwargs):\n            raise MissingRequirementsError(\n                'Install \"curl_cffi\" package | pip install -U curl_cffi'\n            )\n\n\nasync def get_args_from_webview(url: str) -> dict:\n    if not has_webview:\n        raise MissingRequirementsError('Install \"webview\" package')\n    window = webview.create_window(\"\", url, hidden=True)\n    await asyncio.sleep(2)\n    body = None\n    while body is None:\n        try:\n            await asyncio.sleep(1)\n            body = window.dom.get_element(\"body:not(.no-js)\")\n        except Exception:\n            ...\n    headers = {\n        **WEBVIEW_HAEDERS,","sourceCodeStart":49,"sourceCodeEnd":85,"githubUrl":"https://github.com/xtekky/gpt4free/blob/973504e1770928ed5fb82f43da528f441ad9ddc3/g4f/requests/__init__.py#L49-L85","documentation":"MissingRequirementsError raised by the stub Session class in g4f/requests/__init__.py when curl_cffi is not installed: importing g4f.requests works, but any Session(...) construction fails immediately. curl_cffi is the TLS-impersonation HTTP client most browser-based providers depend on, so without it nearly all cookie/Cloudflare-dependent providers cannot run.","triggerScenarios":"pip install g4f without extras (curl_cffi is an optional dependency), then any code path constructing g4f.requests.Session — directly or via a provider that uses it for browser-fingerprinted requests.","commonSituations":"Minimal installs in CI or slim Docker images; installing g4f from source without requirements; virtualenvs where curl_cffi failed to build (it ships binary wheels — old pip/platform combos can miss them).","solutions":["Install the dependency exactly as the message says: pip install -U curl_cffi.","Better, install g4f with its requirements: pip install -U g4f[all] (or the relevant extras) so all optional deps come along.","In Dockerfiles, ensure the base image is new enough for curl_cffi's binary wheels, or upgrade pip first.","Verify with python -c \"import curl_cffi; print(curl_cffi.__version__)\" before running your app."],"exampleFix":"# before\npip install g4f\npython app.py  # MissingRequirementsError: Install \"curl_cffi\" package\n\n# after\npip install -U g4f[all]\npython app.py","handlingStrategy":"validation","validationCode":"import importlib.util\nif importlib.util.find_spec('curl_cffi') is None:\n    raise RuntimeError('curl_cffi not installed — run: pip install -U curl_cffi')","typeGuard":"def has_curl_cffi() -> bool:\n    import importlib.util\n    return importlib.util.find_spec('curl_cffi') is not None","tryCatchPattern":"from g4f.errors import MissingRequirementsError\ntry:\n    session = Session(impersonate='chrome')\nexcept MissingRequirementsError as e:\n    raise RuntimeError(f'deployment incomplete: {e}') from e","preventionTips":["Install g4f with extras: pip install -U g4f[all].","Add a dependency check at container/app startup before any provider runs.","Pin curl_cffi in requirements to avoid wheel-availability surprises on old platforms."],"tags":["dependencies","missing-package","curl-cffi","installation","g4f"],"backgroundTag":null,"analyzedSha":"973504e1770928ed5fb82f43da528f441ad9ddc3","analyzedAt":"2026-08-14T23:45:32.408Z","schemaVersion":2},"datasetVersion":"2026-08-15T22:17:37.221Z"}