diff --git a/swh/web/client/__init__.py b/swh/web/client/__init__.py
--- a/swh/web/client/__init__.py
+++ b/swh/web/client/__init__.py
@@ -1 +0,0 @@
-from .client import WebAPIClient  # NoQA: F401
diff --git a/swh/web/client/cli.py b/swh/web/client/cli.py
--- a/swh/web/client/cli.py
+++ b/swh/web/client/cli.py
@@ -3,12 +3,11 @@
 # License: GNU General Public License version 3, or any later version
 # See top-level LICENSE file for more information
 
-from getpass import getpass
-
+# WARNING: do not import unnecessary things here to keep cli startup time under
+# control
 import click
 from click.core import Context
 
-from swh.web.client.auth import OpenIDConnectSession
 
 CONTEXT_SETTINGS = dict(help_option_names=["-h", "--help"])
 
@@ -46,6 +45,8 @@
     This CLI tool eases the retrieval of a bearer token to authenticate
     a user querying the Software Heritage Web API.
     """
+    from swh.web.client.auth import OpenIDConnectSession
+
     ctx.ensure_object(dict)
     ctx.obj["oidc_session"] = OpenIDConnectSession(
         oidc_server_url, realm_name, client_id
@@ -69,6 +70,8 @@
     token has a much longer expiration time than classical OIDC
     sessions (usually several dozens of days).
     """
+    from getpass import getpass
+
     password = getpass()
 
     oidc_info = ctx.obj["oidc_session"].login(username, password)
diff --git a/swh/web/client/client.py b/swh/web/client/client.py
--- a/swh/web/client/client.py
+++ b/swh/web/client/client.py
@@ -10,7 +10,7 @@
 
 .. code-block:: python
 
-   from swh.web.client import WebAPIClient
+   from swh.web.client.client import WebAPIClient
    cli = WebAPIClient()
 
    # retrieve any archived object via its PID
diff --git a/swh/web/client/tests/conftest.py b/swh/web/client/tests/conftest.py
--- a/swh/web/client/tests/conftest.py
+++ b/swh/web/client/tests/conftest.py
@@ -6,7 +6,7 @@
 import pytest
 
 from .api_data import API_URL, API_DATA
-from swh.web.client import WebAPIClient
+from swh.web.client.client import WebAPIClient
 
 
 @pytest.fixture
@@ -19,11 +19,13 @@
             headers = {
                 "Link": f'<{API_URL}/{api_call}?branches_count=1000&branches_from=refs/tags/v3.0-rc7>; rel="next"'  # NoQA: E501
             }
-        elif api_call == "origin/https://github.com/NixOS/nixpkgs/visits/?last_visit=50&per_page=10":  # NoQA: E501
+        elif (
+            api_call
+            == "origin/https://github.com/NixOS/nixpkgs/visits/?last_visit=50&per_page=10"  # NoQA: E501
+        ):
             # to make the client follow pagination
             headers = {
-                "Link":
-                f"<{API_URL}/origin/https://github.com/NixOS/nixpkgs/visits/?last_visit=40&per_page=10>; rel=\"next\""  # NoQA: E501
+                "Link": f'<{API_URL}/origin/https://github.com/NixOS/nixpkgs/visits/?last_visit=40&per_page=10>; rel="next"'  # NoQA: E501
             }
         requests_mock.get(f"{API_URL}/{api_call}", text=data, headers=headers)
     return requests_mock