@@ -0,0 +1,478 @@
+import subprocess%0A%0A%0Adef test_no_remote_imports():%0A    remote_modules = %7B%0A        %22boto3%22,%0A        %22botocore%22,%0A        %22google.cloud.storage%22,%0A        %22azure.storage.blob%22,%0A        %22oss2%22,%0A        %22pydrive2%22,%0A        %22paramiko%22,%0A        %22pyarrow%22,%0A    %7D%0A%0A    code = %22import dvc.main, sys; print(' '.join(sys.modules))%22%0A    res = subprocess.run(%5B%22python%22, %22-c%22, code%5D, stdout=subprocess.PIPE)%0A    modules = res.stdout.decode().split()%0A    assert not set(modules) & remote_modules%0A

check that no remote backend modules are loaded by default (#3400)