get_environment_proxies() — anthropic-sdk-python Function Reference

Source Code

src/anthropic/_utils/_httpx.py lines 32–64

def get_environment_proxies() -> Mapping[str, str | None]:
    """
    Gets the proxy mappings based on environment variables.
    We use our own logic to parse these variables, as HTTPX
    doesn’t allow full configuration of the underlying
    transport when proxies are set via environment variables.
    """

    proxy_info = getproxies()
    mounts: dict[str, str | None] = {}

    for scheme in ("http", "https", "all"):
        if proxy_info.get(scheme):
            hostname = proxy_info[scheme]
            mounts[f"{scheme}://"] = hostname if "://" in hostname else f"http://{hostname}"

    no_proxy_hosts = [host.strip() for host in proxy_info.get("no", "").split(",")]
    for hostname in no_proxy_hosts:
        if hostname == "*":
            return {}
        elif hostname:
            if "://" in hostname:
                mounts[hostname] = None
            elif is_ipv4_hostname(hostname):
                mounts[f"all://{hostname}"] = None
            elif is_ipv6_hostname(hostname):
                mounts[f"all://[{hostname}]"] = None
            elif hostname.lower() == "localhost":
                mounts[f"all://{hostname}"] = None
            else:
                mounts[f"all://*{hostname}"] = None

    return mounts