diff --git a/example.py b/example.py
index 6efc835..2e3823d 100644
--- a/example.py
+++ b/example.py
@@ -1,10 +1,10 @@
 from  __future__ import unicode_literals
-import ipdb,sys
+import ipdb_py,sys
 
 
 
 def test_free():
-    db = ipdb.City("c:/work/ipdb/mydata4vipweek2.ipdb")
+    db = ipdb_py.City("c:/work/ipdb/mydata4vipweek2.ipdb")
     print(db.is_ipv4(), db.is_ipv6())
     print(db.languages())
     print(db.fields())
@@ -22,7 +22,7 @@ def test_free():
 
 
 def test_city_ipv4():
-    db = ipdb.City("c:/tiantexin/download/mydata4vipday4_cn.ipdb")
+    db = ipdb_py.City("c:/tiantexin/download/mydata4vipday4_cn.ipdb")
     print(db.is_ipv4(), db.is_ipv6())
     print(db.languages())
     print(db.fields())
@@ -33,7 +33,7 @@ def test_city_ipv4():
 
 
 def test_city_ipv6():
-    db = ipdb.City("c:/work/ipdb/city.ipv6.ipdb")
+    db = ipdb_py.City("c:/work/ipdb/city.ipv6.ipdb")
     print(db.is_ipv4(), db.is_ipv6())
     print(db.languages())
     print(db.fields())
@@ -47,7 +47,7 @@ def test_city_ipv6():
 
 
 def test_district():
-    db = ipdb.District("c:/work/ipdb/china_district.ipdb")
+    db = ipdb_py.District("c:/work/ipdb/china_district.ipdb")
     print(db.is_ipv4(), db.is_ipv6())
     print(db.languages())
     print(db.fields())
@@ -56,21 +56,21 @@ def test_district():
         for B in range (255):
             try:
                 print(db.find("%d.%d.114.144" % (A, B), "CN"))
-            except ipdb.IPNotFound as e:
+            except ipdb_py.IPNotFound as e:
                 print(e)
 
     try:
         print(db.find("1.1.1.1", "CN"))
-    except ipdb.IPNotFound as e: # ip not found
+    except ipdb_py.IPNotFound as e: # ip not found
         print(e)
-    except ipdb.DatabaseError as e: # database file size error
+    except ipdb_py.DatabaseError as e: # database file size error
         print(e)
     print(db.find_map("1.12.13.255", "CN"))
     print(db.find_info("1.12.13.255", "CN").country_name)
 
 
 def test_base_station():
-    db = ipdb.BaseStation("c:/work/ipdb/base_station.ipdb")
+    db = ipdb_py.BaseStation("c:/work/ipdb/base_station.ipdb")
     print(db.is_ipv4(), db.is_ipv6())
     print(db.languages())
     print(db.fields())
@@ -79,7 +79,7 @@ def test_base_station():
 
 
 def test_idc_list():
-    db = ipdb.IDC("c:/work/ipdb/idc_list.ipdb")
+    db = ipdb_py.IDC("c:/work/ipdb/idc_list.ipdb")
     print(db.find_map("1.1.1.1", "CN"))
     print(db.find_map("8.8.8.8", "CN"))
 
diff --git a/ipdb/__init__.py b/ipdb_py/__init__.py
similarity index 100%
rename from ipdb/__init__.py
rename to ipdb_py/__init__.py
diff --git a/ipdb/base_station.py b/ipdb_py/base_station.py
similarity index 100%
rename from ipdb/base_station.py
rename to ipdb_py/base_station.py
diff --git a/ipdb/city.py b/ipdb_py/city.py
similarity index 100%
rename from ipdb/city.py
rename to ipdb_py/city.py
diff --git a/ipdb/database.py b/ipdb_py/database.py
similarity index 100%
rename from ipdb/database.py
rename to ipdb_py/database.py
diff --git a/ipdb/district.py b/ipdb_py/district.py
similarity index 100%
rename from ipdb/district.py
rename to ipdb_py/district.py
diff --git a/ipdb/exceptions.py b/ipdb_py/exceptions.py
similarity index 100%
rename from ipdb/exceptions.py
rename to ipdb_py/exceptions.py
diff --git a/ipdb/idc.py b/ipdb_py/idc.py
similarity index 100%
rename from ipdb/idc.py
rename to ipdb_py/idc.py
diff --git a/ipdb/util.py b/ipdb_py/util.py
similarity index 100%
rename from ipdb/util.py
rename to ipdb_py/util.py
diff --git a/ipdb_test.py b/ipdb_test.py
index e8ede7c..3f1b429 100644
--- a/ipdb_test.py
+++ b/ipdb_test.py
@@ -1,12 +1,12 @@
 import unittest
 
-import ipdb
+import ipdb_py
 
 class TestIPDb(unittest.TestCase):
 
     def test_city(self):
         print("\n\ntest city start\n\n")
-        city = ipdb.City("c:/work/ipdb/city.ipv4.ipdb")
+        city = ipdb_py.City("c:/work/ipdb/city.ipv4.ipdb")
         print("ipdb.build.time:", city.build_time())
         for A in range(224):
             ip_address = u"%d.28.1.1" % A
@@ -18,7 +18,7 @@ def test_city(self):
 
     def test_district(self):
         print("\n\ntest district start\n\n")
-        district = ipdb.District("c:/work/ipdb/china_district.ipdb")
+        district = ipdb_py.District("c:/work/ipdb/china_district.ipdb")
         print("ipdb.build.time:", district.build_time())
         for A in range(224):
             ip_address = u"%d.28.1.1" % A
@@ -26,13 +26,13 @@ def test_district(self):
                 print(ip_address, district.find(ip_address, "CN"))
                 print(ip_address, district.find_map(ip_address, "CN"))
                 print(ip_address, district.find_info(ip_address, "CN"))
-            except ipdb.IPNotFound as e:
+            except ipdb_py.IPNotFound as e:
                 print(ip_address, e)
         print("\n\ntest district end\n\n")
 
     def test_station(self):
         print("\n\ntest base_station start\n\n")
-        base_station = ipdb.BaseStation("c:/work/ipdb/base_station.ipdb")
+        base_station = ipdb_py.BaseStation("c:/work/ipdb/base_station.ipdb")
         print("ipdb.build.time:", base_station.build_time())
         for A in range(224):
             ip_address = u"%d.28.1.1" % A
@@ -40,7 +40,7 @@ def test_station(self):
                 print(ip_address, base_station.find(ip_address, "CN"))
                 print(ip_address, base_station.find_map(ip_address, "CN"))
                 print(ip_address, base_station.find_info(ip_address, "CN"))
-            except ipdb.IPNotFound as e:
+            except ipdb_py.IPNotFound as e:
                 print(ip_address, e)
         print("\n\ntest base_station end\n\n")
 
diff --git a/setup.py b/setup.py
index 752ce1e..22f8a0d 100644
--- a/setup.py
+++ b/setup.py
@@ -13,7 +13,7 @@
     maintainer='frk',
     maintainer_email='frk@ipip.net',
     license='Apache License Version 2.0',
-    packages=['ipdb'],
+    packages=['ipdb_py'],
     platforms=["all"],
     url='https://github.com/ipipdotnet/ipdb-python',
     classifiers=[