diff --git a/setup.py b/setup.py
index <HASH>..<HASH> 100644
--- a/setup.py
+++ b/setup.py
@@ -21,6 +21,6 @@ setup(
   license="MIT License",
   packages=["webtul"],
   # packages = find_packages(),
-  install_requires=["python>3"],
+  install_requires=["python>=3"],
   platforms=["any"],
 )
diff --git a/webtul/__init__.py b/webtul/__init__.py
index <HASH>..<HASH> 100644
--- a/webtul/__init__.py
+++ b/webtul/__init__.py
@@ -9,15 +9,15 @@ __all__ = ['struct']
 __version__ = '1.01'
 
 
-import aescbc
-import dal
-import geo
-import img
-import jsonx
-import path
-import rsa
-import stringx
-import struct
+from . import aescbc
+from . import dal
+from . import geo
+from . import img
+from . import jsonx
+from . import path
+from . import rsa
+from . import stringx
+from . import struct
 
 
 if __name__ == "__main__":
Add, work with python 3.