Use absolute and relative imports as per PEP8

Absolute imports are the Pythonic recommendation in general.
However, for the toplevel __init__.py, relative imports are
acceptable, and perhaps even preferred for succinectness.

Author: ctrueden

src/scyjava/__init__.py

@@ -70,12 +70,12 @@
 from functools import lru_cache
 from typing import Any, Callable, Dict
 
-from scyjava._arrays import (  # noqa: F401
+from ._arrays import (  # noqa: F401
     is_arraylike,
     is_memoryarraylike,
     is_xarraylike,
 )
-from scyjava._convert import (  # noqa: F401
+from ._convert import (  # noqa: F401
     Converter,
     JavaCollection,
     JavaIterable,
@@ -94,7 +94,7 @@
     to_java,
     to_python,
 )
-from scyjava._java import (  # noqa: F401
+from ._java import (  # noqa: F401
     JavaClasses,
     available_processors,
     gc,
@@ -117,8 +117,8 @@
     when_jvm_starts,
     when_jvm_stops,
 )
-from scyjava._script import enable_python_scripting  # noqa: F401
-from scyjava._versions import (  # noqa: F401
+from ._script import enable_python_scripting  # noqa: F401
+from ._versions import (  # noqa: F401
     compare_version,
     get_version,
     is_version_at_least,

src/scyjava/_convert.py

@@ -12,7 +12,7 @@
 
 from jpype import JBoolean, JByte, JChar, JDouble, JFloat, JInt, JLong, JShort
 
-from ._java import (
+from scyjava._java import (
     JavaClasses,
     Mode,
     is_jarray,

src/scyjava/_script.py

@@ -13,8 +13,8 @@
 
 from jpype import JImplements, JOverride
 
-from ._convert import to_java
-from ._java import jimport
+from scyjava._convert import to_java
+from scyjava._java import jimport
 
 
 def enable_python_scripting(context):

src/scyjava/_versions.py

@@ -5,7 +5,7 @@
 import logging
 from importlib.metadata import version
 
-from ._java import isjava, jimport
+from scyjava._java import isjava, jimport
 
 _logger = logging.getLogger(__name__)