Flake8 fixes

Also made sure that __version__ and get_include is in __all__, so that
their docstrings make it into the rendered autogenerated documentation.

Author: oleksandr-pavlyk

dpctl/__init__.py

@@ -19,8 +19,11 @@
 
     Dpctl's Python API implements Python wrappers for a subset of DPC++/SYCL's
     API. The Python API exposes wrappers for the SYCL runtime classes (expect
-    `device_selector`) described in Section 4.6 of the SYCL 2020 spec (https://www.khronos.org/registry/SYCL/specs/sycl-2020/html/sycl-2020.html#_sycl_runtime_classes).
-    Apart from the main SYCL runtime classes, dpctl includes a `memory` sub-module that exposes the SYCL USM allocators and deallocators.
+    `device_selector`) described in Section 4.6 of the
+    [SYCL 2020 spec](https://www.khronos.org/registry/SYCL/specs/sycl-2020/
+html/sycl-2020.html#_sycl_runtime_classes).
+    Apart from the main SYCL runtime classes, dpctl includes a `memory`
+    sub-module that exposes the SYCL USM allocators and deallocators.
 """
 __author__ = "Intel Corp."
 
@@ -43,18 +46,6 @@
 from ._version import get_versions
 
 
-__all__ = (
-    _sycl_context__all__
-    + _sycl_device__all__
-    + _sycl_device_factory__all__
-    + _sycl_event__all__
-    + _sycl_platform__all__
-    + _sycl_queue__all__
-    + _sycl_qm__all__
-    + _enum_types_all__
-)
-
-
 def get_include():
     r"""
     Return the directory that contains the dpctl \*.h header files.
@@ -68,6 +59,18 @@ def get_include():
 
 
 __version__ = get_versions()["version"]
+
+
+__all__ = _sycl_context__all__
+__all__ += _sycl_device__all__
+__all__ += _sycl_device_factory__all__
+__all__ += _sycl_event__all__
+__all__ += _sycl_platform__all__
+__all__ += _sycl_queue__all__
+__all__ += _sycl_qm__all__
+__all__ += _enum_types_all__
+__all__ += ["__version__", "get_include"]
+
 del get_versions
 del _sycl_context__all__
 del _sycl_device__all__