Merge pull request #5202 from taosdata/feature/sangshuduo/TD-2971-python-connector-support-unsigned

[TD-2971] feature: make python connector support unsigned type.

src/connector/python/linux/python2/setup.py

@@ -5,7 +5,7 @@ with open("README.md", "r") as fh:
 
 setuptools.setup(
     name="taos",
-    version="2.0.5",
+    version="2.0.6",
     author="Taosdata Inc.",
     author_email="support@taosdata.com",
     description="TDengine python client package",

src/connector/python/linux/python2/taos/__init__.py

@@ -3,12 +3,12 @@ from .connection import TDengineConnection
 from .cursor import TDengineCursor
 
 # Globals
-apilevel = '2.0.3'
 threadsafety = 0
 paramstyle = 'pyformat'
 
 __all__ = ['connection', 'cursor']
 
+
 def connect(*args, **kwargs):
     """ Function to return a TDengine connector object
 
@@ -21,4 +21,4 @@ def connect(*args, **kwargs):
 
     @rtype: TDengineConnector
     """
-    return TDengineConnection(*args, **kwargs)
\ No newline at end of file
+    return TDengineConnection(*args, **kwargs)

src/connector/python/linux/python2/taos/connection.py

@@ -2,9 +2,11 @@ from .cursor import TDengineCursor
 from .subscription import TDengineSubscription
 from .cinterface import CTaosInterface
 
+
 class TDengineConnection(object):
     """ TDengine connection object
     """
+
     def __init__(self, *args, **kwargs):
         self._conn = None
         self._host = None
@@ -29,7 +31,7 @@ class TDengineConnection(object):
         # password
         if 'password' in kwargs:
             self._password = kwargs['password']
-        
+
         # database
         if 'database' in kwargs:
             self._database = kwargs['database']
@@ -43,7 +45,12 @@ class TDengineConnection(object):
             self._config = kwargs['config']
 
         self._chandle = CTaosInterface(self._config)
-        self._conn = self._chandle.connect(self._host, self._user, self._password, self._database, self._port)
+        self._conn = self._chandle.connect(
+            self._host,
+            self._user,
+            self._password,
+            self._database,
+            self._port)
 
     def close(self):
         """Close current connection.
@@ -55,7 +62,8 @@ class TDengineConnection(object):
         """
         if self._conn is None:
             return None
-        sub = CTaosInterface.subscribe(self._conn, restart, topic, sql, interval)
+        sub = CTaosInterface.subscribe(
+            self._conn, restart, topic, sql, interval)
         return TDengineSubscription(sub)
 
     def cursor(self):
@@ -80,7 +88,8 @@ class TDengineConnection(object):
         """
         pass
 
+
 if __name__ == "__main__":
     conn = TDengineConnection(host='192.168.1.107')
     conn.close()
-    print("Hello world")
\ No newline at end of file
+    print("Hello world")

src/connector/python/linux/python2/taos/constants.py

@@ -3,6 +3,7 @@
 
 from .dbapi import *
 
+
 class FieldType(object):
     """TDengine Field Types
     """
@@ -18,13 +19,21 @@ class FieldType(object):
     C_BINARY = 8
     C_TIMESTAMP = 9
     C_NCHAR = 10
+    C_TINYINT_UNSIGNED = 12
+    C_SMALLINT_UNSIGNED = 13
+    C_INT_UNSIGNED = 14
+    C_BIGINT_UNSIGNED = 15
     # NULL value definition
     # NOTE: These values should change according to C definition in tsdb.h
     C_BOOL_NULL = 0x02
     C_TINYINT_NULL = -128
+    C_TINYINT_UNSIGNED_NULL = 255
     C_SMALLINT_NULL = -32768
+    C_SMALLINT_UNSIGNED_NULL = 65535
     C_INT_NULL = -2147483648
+    C_INT_UNSIGNED_NULL = 4294967295
     C_BIGINT_NULL = -9223372036854775808
+    C_BIGINT_UNSIGNED_NULL = 18446744073709551615
     C_FLOAT_NULL = float('nan')
     C_DOUBLE_NULL = float('nan')
     C_BINARY_NULL = bytearray([int('0xff', 16)])

src/connector/python/linux/python2/taos/cursor.py

@@ -128,8 +128,8 @@ class TDengineCursor(object):
         if errno == 0:
             if CTaosInterface.fieldsCount(self._result) == 0:
                 self._affected_rows += CTaosInterface.affectedRows(
-                    self._result )
-                return CTaosInterface.affectedRows(self._result )
+                    self._result)
+                return CTaosInterface.affectedRows(self._result)
             else:
                 self._fields = CTaosInterface.useResult(
                     self._result)
@@ -148,6 +148,7 @@ class TDengineCursor(object):
         """Fetch the next row of a query result set, returning a single sequence, or None when no more data is available.
         """
         pass
+
     def fetchmany(self):
         pass
 
@@ -158,11 +159,26 @@ class TDengineCursor(object):
         if (dataType.upper() == "TINYINT"):
             if (self._description[col][1] == FieldType.C_TINYINT):
                 return True
+        if (dataType.upper() == "TINYINT UNSIGNED"):
+            if (self._description[col][1] == FieldType.C_TINYINT_UNSIGNED):
+                return True
+        if (dataType.upper() == "SMALLINT"):
+            if (self._description[col][1] == FieldType.C_SMALLINT):
+                return True
+        if (dataType.upper() == "SMALLINT UNSIGNED"):
+            if (self._description[col][1] == FieldType.C_SMALLINT_UNSIGNED):
+                return True
         if (dataType.upper() == "INT"):
             if (self._description[col][1] == FieldType.C_INT):
                 return True
+        if (dataType.upper() == "INT UNSIGNED"):
+            if (self._description[col][1] == FieldType.C_INT_UNSIGNED):
+                return True
         if (dataType.upper() == "BIGINT"):
-            if (self._description[col][1] == FieldType.C_INT):
+            if (self._description[col][1] == FieldType.C_BIGINT):
+                return True
+        if (dataType.upper() == "BIGINT UNSIGNED"):
+            if (self._description[col][1] == FieldType.C_BIGINT_UNSIGNED):
                 return True
         if (dataType.upper() == "FLOAT"):
             if (self._description[col][1] == FieldType.C_FLOAT):
@@ -191,16 +207,20 @@ class TDengineCursor(object):
         buffer = [[] for i in range(len(self._fields))]
         self._rowcount = 0
         while True:
-            block, num_of_fields = CTaosInterface.fetchRow(self._result, self._fields)
+            block, num_of_fields = CTaosInterface.fetchRow(
+                self._result, self._fields)
             errno = CTaosInterface.libtaos.taos_errno(self._result)
             if errno != 0:
-                raise ProgrammingError(CTaosInterface.errStr(self._result), errno)
+                raise ProgrammingError(
+                    CTaosInterface.errStr(
+                        self._result), errno)
             if num_of_fields == 0:
                 break
             self._rowcount += num_of_fields
             for i in range(len(self._fields)):
                 buffer[i].extend(block[i])
         return list(map(tuple, zip(*buffer)))
+
     def fetchall(self):
         if self._result is None or self._fields is None:
             raise OperationalError("Invalid use of fetchall")
@@ -208,16 +228,20 @@ class TDengineCursor(object):
         buffer = [[] for i in range(len(self._fields))]
         self._rowcount = 0
         while True:
-            block, num_of_fields = CTaosInterface.fetchBlock(self._result, self._fields)
+            block, num_of_fields = CTaosInterface.fetchBlock(
+                self._result, self._fields)
             errno = CTaosInterface.libtaos.taos_errno(self._result)
             if errno != 0:
-                raise ProgrammingError(CTaosInterface.errStr(self._result), errno)
+                raise ProgrammingError(
+                    CTaosInterface.errStr(
+                        self._result), errno)
             if num_of_fields == 0:
                 break
             self._rowcount += num_of_fields
             for i in range(len(self._fields)):
                 buffer[i].extend(block[i])
         return list(map(tuple, zip(*buffer)))
+
     def nextset(self):
         """
         """

src/connector/python/linux/python2/taos/dbapi.py

@@ -4,6 +4,7 @@
 import time
 import datetime
 
+
 class DBAPITypeObject(object):
     def __init__(self, *values):
         self.values = values
@@ -16,23 +17,28 @@ class DBAPITypeObject(object):
         else:
             return -1
 
+
 Date = datetime.date
 Time = datetime.time
 Timestamp = datetime.datetime
 
+
 def DataFromTicks(ticks):
     return Date(*time.localtime(ticks)[:3])
 
+
 def TimeFromTicks(ticks):
     return Time(*time.localtime(ticks)[3:6])
 
+
 def TimestampFromTicks(ticks):
     return Timestamp(*time.localtime(ticks)[:6])
 
+
 Binary = bytes
 
 # STRING = DBAPITypeObject(*constants.FieldType.get_string_types())
 # BINARY = DBAPITypeObject(*constants.FieldType.get_binary_types())
 # NUMBER = BAPITypeObject(*constants.FieldType.get_number_types())
 # DATETIME = DBAPITypeObject(*constants.FieldType.get_timestamp_types())
-# ROWID = DBAPITypeObject()
\ No newline at end of file
+# ROWID = DBAPITypeObject()

src/connector/python/linux/python2/taos/error.py

 """Python exceptions
 """
 
+
 class Error(Exception):
     def __init__(self, msg=None, errno=None):
         self.msg = msg
         self._full_msg = self.msg
         self.errno = errno
-    
+
     def __str__(self):
         return self._full_msg
 
+
 class Warning(Exception):
     """Exception raised for important warnings like data truncations while inserting.
     """
     pass
 
+
 class InterfaceError(Error):
-    """Exception raised for errors that are related to the database interface rather than the database itself. 
+    """Exception raised for errors that are related to the database interface rather than the database itself.
     """
     pass
 
+
 class DatabaseError(Error):
-    """Exception raised for errors that are related to the database. 
+    """Exception raised for errors that are related to the database.
     """
     pass
 
+
 class DataError(DatabaseError):
     """Exception raised for errors that are due to problems with the processed data like division by zero, numeric value out of range.
     """
     pass
 
+
 class OperationalError(DatabaseError):
     """Exception raised for errors that are related to the database's operation and not necessarily under the control of the programmer
     """
@@ -41,17 +47,20 @@ class IntegrityError(DatabaseError):
     """
     pass
 
+
 class InternalError(DatabaseError):
     """Exception raised when the database encounters an internal error.
     """
     pass
 
+
 class ProgrammingError(DatabaseError):
     """Exception raised for programming errors.
     """
     pass
 
+
 class NotSupportedError(DatabaseError):
     """Exception raised in case a method or database API was used which is not supported by the database,.
     """
-    pass
\ No newline at end of file
+    pass

src/connector/python/linux/python2/taos/subscription.py

 from .cinterface import CTaosInterface
 from .error import *
 
+
 class TDengineSubscription(object):
     """TDengine subscription object
     """
+
     def __init__(self, sub):
         self._sub = sub
-    
 
     def consume(self):
         """Consume rows of a subscription
         """
         if self._sub is None:
             raise OperationalError("Invalid use of consume")
-        
+
         result, fields = CTaosInterface.consume(self._sub)
         buffer = [[] for i in range(len(fields))]
         while True:
             block, num_of_fields = CTaosInterface.fetchBlock(result, fields)
-            if num_of_fields == 0: break
+            if num_of_fields == 0:
+                break
             for i in range(len(fields)):
                 buffer[i].extend(block[i])
 
         self.fields = fields
         return list(map(tuple, zip(*buffer)))
 
-
-    def close(self, keepProgress = True):
+    def close(self, keepProgress=True):
         """Close the Subscription.
         """
         if self._sub is None:
             return False
-        
+
         CTaosInterface.unsubscribe(self._sub, keepProgress)
         return True
 
 
 if __name__ == '__main__':
     from .connection import TDengineConnection
-    conn = TDengineConnection(host="127.0.0.1", user="root", password="taosdata", database="test")
+    conn = TDengineConnection(
+        host="127.0.0.1",
+        user="root",
+        password="taosdata",
+        database="test")
 
     # Generate a cursor object to run SQL commands
     sub = conn.subscribe(True, "test", "select * from meters;", 1000)
 
-    for i in range(0,10):
+    for i in range(0, 10):
         data = sub.consume()
         for d in data:
             print(d)
 
     sub.close()
-    conn.close()
\ No newline at end of file
+    conn.close()

src/connector/python/linux/python3/setup.py

@@ -5,7 +5,7 @@ with open("README.md", "r") as fh:
 
 setuptools.setup(
     name="taos",
-    version="2.0.4",
+    version="2.0.5",
     author="Taosdata Inc.",
     author_email="support@taosdata.com",
     description="TDengine python client package",

src/connector/python/linux/python3/taos/__init__.py

@@ -3,12 +3,12 @@ from .connection import TDengineConnection
 from .cursor import TDengineCursor
 
 # Globals
-apilevel = '2.0.3'
 threadsafety = 0
 paramstyle = 'pyformat'
 
 __all__ = ['connection', 'cursor']
 
+
 def connect(*args, **kwargs):
     """ Function to return a TDengine connector object
 

src/connector/python/linux/python3/taos/connection.py

@@ -2,9 +2,11 @@ from .cursor import TDengineCursor
 from .subscription import TDengineSubscription
 from .cinterface import CTaosInterface
 
+
 class TDengineConnection(object):
     """ TDengine connection object
     """
+
     def __init__(self, *args, **kwargs):
         self._conn = None
         self._host = None
@@ -29,7 +31,7 @@ class TDengineConnection(object):
         # password
         if 'password' in kwargs:
             self._password = kwargs['password']
-        
+
         # database
         if 'database' in kwargs:
             self._database = kwargs['database']
@@ -43,7 +45,12 @@ class TDengineConnection(object):
             self._config = kwargs['config']
 
         self._chandle = CTaosInterface(self._config)
-        self._conn = self._chandle.connect(self._host, self._user, self._password, self._database, self._port)
+        self._conn = self._chandle.connect(
+            self._host,
+            self._user,
+            self._password,
+            self._database,
+            self._port)
 
     def close(self):
         """Close current connection.
@@ -55,7 +62,8 @@ class TDengineConnection(object):
         """
         if self._conn is None:
             return None
-        sub = CTaosInterface.subscribe(self._conn, restart, topic, sql, interval)
+        sub = CTaosInterface.subscribe(
+            self._conn, restart, topic, sql, interval)
         return TDengineSubscription(sub)
 
     def cursor(self):
@@ -80,7 +88,8 @@ class TDengineConnection(object):
         """
         pass
 
+
 if __name__ == "__main__":
     conn = TDengineConnection(host='192.168.1.107')
     conn.close()
-    print("Hello world")
\ No newline at end of file
+    print("Hello world")

src/connector/python/linux/python3/taos/constants.py

@@ -3,6 +3,7 @@
 
 from .dbapi import *
 
+
 class FieldType(object):
     """TDengine Field Types
     """
@@ -18,13 +19,21 @@ class FieldType(object):
     C_BINARY = 8
     C_TIMESTAMP = 9
     C_NCHAR = 10
+    C_TINYINT_UNSIGNED = 12
+    C_SMALLINT_UNSIGNED = 13
+    C_INT_UNSIGNED = 14
+    C_BIGINT_UNSIGNED = 15
     # NULL value definition
     # NOTE: These values should change according to C definition in tsdb.h
     C_BOOL_NULL = 0x02
     C_TINYINT_NULL = -128
+    C_TINYINT_UNSIGNED_NULL = 255
     C_SMALLINT_NULL = -32768
+    C_SMALLINT_UNSIGNED_NULL = 65535
     C_INT_NULL = -2147483648
+    C_INT_UNSIGNED_NULL = 4294967295
     C_BIGINT_NULL = -9223372036854775808
+    C_BIGINT_UNSIGNED_NULL = 18446744073709551615
     C_FLOAT_NULL = float('nan')
     C_DOUBLE_NULL = float('nan')
     C_BINARY_NULL = bytearray([int('0xff', 16)])

src/connector/python/linux/python3/taos/cursor.py

@@ -5,6 +5,7 @@ import threading
 
 # querySeqNum = 0
 
+
 class TDengineCursor(object):
     """Database cursor which is used to manage the context of a fetch operation.
 
@@ -107,8 +108,8 @@ class TDengineCursor(object):
         # if threading.get_ident() != self._threadId:
         #     info ="Cursor execute:Thread ID not match,creater:"+str(self._threadId)+" caller:"+str(threading.get_ident())
         #     raise OperationalError(info)
-            # print(info)
-            # return None
+        # print(info)
+        # return None
 
         if not operation:
             return None
@@ -137,8 +138,8 @@ class TDengineCursor(object):
         if errno == 0:
             if CTaosInterface.fieldsCount(self._result) == 0:
                 self._affected_rows += CTaosInterface.affectedRows(
-                    self._result )
-                return CTaosInterface.affectedRows(self._result )
+                    self._result)
+                return CTaosInterface.affectedRows(self._result)
             else:
                 self._fields = CTaosInterface.useResult(
                     self._result)
@@ -168,11 +169,26 @@ class TDengineCursor(object):
         if (dataType.upper() == "TINYINT"):
             if (self._description[col][1] == FieldType.C_TINYINT):
                 return True
+        if (dataType.upper() == "TINYINT UNSIGNED"):
+            if (self._description[col][1] == FieldType.C_TINYINT_UNSIGNED):
+                return True
+        if (dataType.upper() == "SMALLINT"):
+            if (self._description[col][1] == FieldType.C_SMALLINT):
+                return True
+        if (dataType.upper() == "SMALLINT UNSIGNED"):
+            if (self._description[col][1] == FieldType.C_SMALLINT_UNSIGNED):
+                return True
         if (dataType.upper() == "INT"):
             if (self._description[col][1] == FieldType.C_INT):
                 return True
+        if (dataType.upper() == "INT UNSIGNED"):
+            if (self._description[col][1] == FieldType.C_INT_UNSIGNED):
+                return True
         if (dataType.upper() == "BIGINT"):
-            if (self._description[col][1] == FieldType.C_INT):
+            if (self._description[col][1] == FieldType.C_BIGINT):
+                return True
+        if (dataType.upper() == "BIGINT UNSIGNED"):
+            if (self._description[col][1] == FieldType.C_BIGINT_UNSIGNED):
                 return True
         if (dataType.upper() == "FLOAT"):
             if (self._description[col][1] == FieldType.C_FLOAT):
@@ -201,10 +217,13 @@ class TDengineCursor(object):
         buffer = [[] for i in range(len(self._fields))]
         self._rowcount = 0
         while True:
-            block, num_of_fields = CTaosInterface.fetchRow(self._result, self._fields)
+            block, num_of_fields = CTaosInterface.fetchRow(
+                self._result, self._fields)
             errno = CTaosInterface.libtaos.taos_errno(self._result)
             if errno != 0:
-                raise ProgrammingError(CTaosInterface.errStr(self._result), errno)
+                raise ProgrammingError(
+                    CTaosInterface.errStr(
+                        self._result), errno)
             if num_of_fields == 0:
                 break
             self._rowcount += num_of_fields
@@ -219,15 +238,20 @@ class TDengineCursor(object):
         buffer = [[] for i in range(len(self._fields))]
         self._rowcount = 0
         while True:
-            block, num_of_fields = CTaosInterface.fetchBlock(self._result, self._fields)
+            block, num_of_fields = CTaosInterface.fetchBlock(
+                self._result, self._fields)
             errno = CTaosInterface.libtaos.taos_errno(self._result)
             if errno != 0:
-                raise ProgrammingError(CTaosInterface.errStr(self._result), errno)
-            if num_of_fields == 0: break
+                raise ProgrammingError(
+                    CTaosInterface.errStr(
+                        self._result), errno)
+            if num_of_fields == 0:
+                break
             self._rowcount += num_of_fields
             for i in range(len(self._fields)):
                 buffer[i].extend(block[i])
         return list(map(tuple, zip(*buffer)))
+
     def nextset(self):
         """
         """
@@ -259,8 +283,8 @@ class TDengineCursor(object):
         # if threading.get_ident() != self._threadId:
         #     info = "Cursor handleresult:Thread ID not match,creater:"+str(self._threadId)+" caller:"+str(threading.get_ident())
         #     raise OperationalError(info)
-            # print(info)
-            # return None
+        # print(info)
+        # return None
 
         self._description = []
         for ele in self._fields:
@@ -268,4 +292,3 @@ class TDengineCursor(object):
                 (ele['name'], ele['type'], None, None, None, None, False))
 
         return self._result
-

src/connector/python/linux/python3/taos/dbapi.py

@@ -4,6 +4,7 @@
 import time
 import datetime
 
+
 class DBAPITypeObject(object):
     def __init__(self, *values):
         self.values = values
@@ -16,23 +17,28 @@ class DBAPITypeObject(object):
         else:
             return -1
 
+
 Date = datetime.date
 Time = datetime.time
 Timestamp = datetime.datetime
 
+
 def DataFromTicks(ticks):
     return Date(*time.localtime(ticks)[:3])
 
+
 def TimeFromTicks(ticks):
     return Time(*time.localtime(ticks)[3:6])
 
+
 def TimestampFromTicks(ticks):
     return Timestamp(*time.localtime(ticks)[:6])
 
+
 Binary = bytes
 
 # STRING = DBAPITypeObject(*constants.FieldType.get_string_types())
 # BINARY = DBAPITypeObject(*constants.FieldType.get_binary_types())
 # NUMBER = BAPITypeObject(*constants.FieldType.get_number_types())
 # DATETIME = DBAPITypeObject(*constants.FieldType.get_timestamp_types())
-# ROWID = DBAPITypeObject()
\ No newline at end of file
+# ROWID = DBAPITypeObject()

src/connector/python/linux/python3/taos/error.py

 """Python exceptions
 """
 
+
 class Error(Exception):
     def __init__(self, msg=None, errno=None):
         self.msg = msg
         self._full_msg = self.msg
         self.errno = errno
-    
+
     def __str__(self):
         return self._full_msg
 
+
 class Warning(Exception):
     """Exception raised for important warnings like data truncations while inserting.
     """
     pass
 
+
 class InterfaceError(Error):
-    """Exception raised for errors that are related to the database interface rather than the database itself. 
+    """Exception raised for errors that are related to the database interface rather than the database itself.
     """
     pass
 
+
 class DatabaseError(Error):
-    """Exception raised for errors that are related to the database. 
+    """Exception raised for errors that are related to the database.
     """
     pass
 
+
 class DataError(DatabaseError):
     """Exception raised for errors that are due to problems with the processed data like division by zero, numeric value out of range.
     """
     pass
 
+
 class OperationalError(DatabaseError):
     """Exception raised for errors that are related to the database's operation and not necessarily under the control of the programmer
     """
@@ -41,17 +47,20 @@ class IntegrityError(DatabaseError):
     """
     pass
 
+
 class InternalError(DatabaseError):
     """Exception raised when the database encounters an internal error.
     """
     pass
 
+
 class ProgrammingError(DatabaseError):
     """Exception raised for programming errors.
     """
     pass
 
+
 class NotSupportedError(DatabaseError):
     """Exception raised in case a method or database API was used which is not supported by the database,.
     """
-    pass
\ No newline at end of file
+    pass

src/connector/python/linux/python3/taos/subscription.py

 from .cinterface import CTaosInterface
 from .error import *
 
+
 class TDengineSubscription(object):
     """TDengine subscription object
     """
+
     def __init__(self, sub):
         self._sub = sub
 
-
     def consume(self):
         """Consume rows of a subscription
         """
         if self._sub is None:
             raise OperationalError("Invalid use of consume")
-        
+
         result, fields = CTaosInterface.consume(self._sub)
         buffer = [[] for i in range(len(fields))]
         while True:
             block, num_of_fields = CTaosInterface.fetchBlock(result, fields)
-            if num_of_fields == 0: break
+            if num_of_fields == 0:
+                break
             for i in range(len(fields)):
                 buffer[i].extend(block[i])
 
         self.fields = fields
         return list(map(tuple, zip(*buffer)))
 
-
-    def close(self, keepProgress = True):
+    def close(self, keepProgress=True):
         """Close the Subscription.
         """
         if self._sub is None:
@@ -38,15 +39,19 @@ class TDengineSubscription(object):
 
 if __name__ == '__main__':
     from .connection import TDengineConnection
-    conn = TDengineConnection(host="127.0.0.1", user="root", password="taosdata", database="test")
+    conn = TDengineConnection(
+        host="127.0.0.1",
+        user="root",
+        password="taosdata",
+        database="test")
 
     # Generate a cursor object to run SQL commands
     sub = conn.subscribe(True, "test", "select * from meters;", 1000)
 
-    for i in range(0,10):
+    for i in range(0, 10):
         data = sub.consume()
         for d in data:
             print(d)
 
     sub.close()
-    conn.close()
\ No newline at end of file
+    conn.close()

src/connector/python/osx/python3/setup.py

@@ -5,7 +5,7 @@ with open("README.md", "r") as fh:
 
 setuptools.setup(
     name="taos",
-    version="2.0.4",
+    version="2.0.5",
     author="Taosdata Inc.",
     author_email="support@taosdata.com",
     description="TDengine python client package",

src/connector/python/osx/python3/taos/__init__.py

@@ -3,12 +3,12 @@ from .connection import TDengineConnection
 from .cursor import TDengineCursor
 
 # Globals
-apilevel = '2.0.4'
 threadsafety = 0
 paramstyle = 'pyformat'
 
 __all__ = ['connection', 'cursor']
 
+
 def connect(*args, **kwargs):
     """ Function to return a TDengine connector object
 

src/connector/python/osx/python3/taos/connection.py

@@ -2,9 +2,11 @@ from .cursor import TDengineCursor
 from .subscription import TDengineSubscription
 from .cinterface import CTaosInterface
 
+
 class TDengineConnection(object):
     """ TDengine connection object
     """
+
     def __init__(self, *args, **kwargs):
         self._conn = None
         self._host = None
@@ -29,7 +31,7 @@ class TDengineConnection(object):
         # password
         if 'password' in kwargs:
             self._password = kwargs['password']
-        
+
         # database
         if 'database' in kwargs:
             self._database = kwargs['database']
@@ -43,7 +45,12 @@ class TDengineConnection(object):
             self._config = kwargs['config']
 
         self._chandle = CTaosInterface(self._config)
-        self._conn = self._chandle.connect(self._host, self._user, self._password, self._database, self._port)
+        self._conn = self._chandle.connect(
+            self._host,
+            self._user,
+            self._password,
+            self._database,
+            self._port)
 
     def close(self):
         """Close current connection.
@@ -55,7 +62,8 @@ class TDengineConnection(object):
         """
         if self._conn is None:
             return None
-        sub = CTaosInterface.subscribe(self._conn, restart, topic, sql, interval)
+        sub = CTaosInterface.subscribe(
+            self._conn, restart, topic, sql, interval)
         return TDengineSubscription(sub)
 
     def cursor(self):
@@ -80,7 +88,8 @@ class TDengineConnection(object):
         """
         pass
 
+
 if __name__ == "__main__":
     conn = TDengineConnection(host='192.168.1.107')
     conn.close()
-    print("Hello world")
\ No newline at end of file
+    print("Hello world")

src/connector/python/osx/python3/taos/constants.py

@@ -3,6 +3,7 @@
 
 from .dbapi import *
 
+
 class FieldType(object):
     """TDengine Field Types
     """
@@ -18,13 +19,21 @@ class FieldType(object):
     C_BINARY = 8
     C_TIMESTAMP = 9
     C_NCHAR = 10
+    C_TINYINT_UNSIGNED = 12
+    C_SMALLINT_UNSIGNED = 13
+    C_INT_UNSIGNED = 14
+    C_BIGINT_UNSIGNED = 15
     # NULL value definition
     # NOTE: These values should change according to C definition in tsdb.h
     C_BOOL_NULL = 0x02
     C_TINYINT_NULL = -128
+    C_TINYINT_UNSIGNED_NULL = 255
     C_SMALLINT_NULL = -32768
+    C_SMALLINT_UNSIGNED_NULL = 65535
     C_INT_NULL = -2147483648
+    C_INT_UNSIGNED_NULL = 4294967295
     C_BIGINT_NULL = -9223372036854775808
+    C_BIGINT_UNSIGNED_NULL = 18446744073709551615
     C_FLOAT_NULL = float('nan')
     C_DOUBLE_NULL = float('nan')
     C_BINARY_NULL = bytearray([int('0xff', 16)])

src/connector/python/osx/python3/taos/cursor.py

@@ -5,6 +5,7 @@ import threading
 
 # querySeqNum = 0
 
+
 class TDengineCursor(object):
     """Database cursor which is used to manage the context of a fetch operation.
 
@@ -107,8 +108,8 @@ class TDengineCursor(object):
         # if threading.get_ident() != self._threadId:
         #     info ="Cursor execute:Thread ID not match,creater:"+str(self._threadId)+" caller:"+str(threading.get_ident())
         #     raise OperationalError(info)
-            # print(info)
-            # return None
+        # print(info)
+        # return None
 
         if not operation:
             return None
@@ -137,8 +138,8 @@ class TDengineCursor(object):
         if errno == 0:
             if CTaosInterface.fieldsCount(self._result) == 0:
                 self._affected_rows += CTaosInterface.affectedRows(
-                    self._result )
-                return CTaosInterface.affectedRows(self._result )
+                    self._result)
+                return CTaosInterface.affectedRows(self._result)
             else:
                 self._fields = CTaosInterface.useResult(
                     self._result)
@@ -168,11 +169,26 @@ class TDengineCursor(object):
         if (dataType.upper() == "TINYINT"):
             if (self._description[col][1] == FieldType.C_TINYINT):
                 return True
+        if (dataType.upper() == "TINYINT UNSIGNED"):
+            if (self._description[col][1] == FieldType.C_TINYINT_UNSIGNED):
+                return True
+        if (dataType.upper() == "SMALLINT"):
+            if (self._description[col][1] == FieldType.C_SMALLINT):
+                return True
+        if (dataType.upper() == "SMALLINT UNSIGNED"):
+            if (self._description[col][1] == FieldType.C_SMALLINT_UNSIGNED):
+                return True
         if (dataType.upper() == "INT"):
             if (self._description[col][1] == FieldType.C_INT):
                 return True
+        if (dataType.upper() == "INT UNSIGNED"):
+            if (self._description[col][1] == FieldType.C_INT_UNSIGNED):
+                return True
         if (dataType.upper() == "BIGINT"):
-            if (self._description[col][1] == FieldType.C_INT):
+            if (self._description[col][1] == FieldType.C_BIGINT):
+                return True
+        if (dataType.upper() == "BIGINT UNSIGNED"):
+            if (self._description[col][1] == FieldType.C_BIGINT_UNSIGNED):
                 return True
         if (dataType.upper() == "FLOAT"):
             if (self._description[col][1] == FieldType.C_FLOAT):
@@ -201,10 +217,13 @@ class TDengineCursor(object):
         buffer = [[] for i in range(len(self._fields))]
         self._rowcount = 0
         while True:
-            block, num_of_fields = CTaosInterface.fetchRow(self._result, self._fields)
+            block, num_of_fields = CTaosInterface.fetchRow(
+                self._result, self._fields)
             errno = CTaosInterface.libtaos.taos_errno(self._result)
             if errno != 0:
-                raise ProgrammingError(CTaosInterface.errStr(self._result), errno)
+                raise ProgrammingError(
+                    CTaosInterface.errStr(
+                        self._result), errno)
             if num_of_fields == 0:
                 break
             self._rowcount += num_of_fields
@@ -219,15 +238,20 @@ class TDengineCursor(object):
         buffer = [[] for i in range(len(self._fields))]
         self._rowcount = 0
         while True:
-            block, num_of_fields = CTaosInterface.fetchBlock(self._result, self._fields)
+            block, num_of_fields = CTaosInterface.fetchBlock(
+                self._result, self._fields)
             errno = CTaosInterface.libtaos.taos_errno(self._result)
             if errno != 0:
-                raise ProgrammingError(CTaosInterface.errStr(self._result), errno)
-            if num_of_fields == 0: break
+                raise ProgrammingError(
+                    CTaosInterface.errStr(
+                        self._result), errno)
+            if num_of_fields == 0:
+                break
             self._rowcount += num_of_fields
             for i in range(len(self._fields)):
                 buffer[i].extend(block[i])
         return list(map(tuple, zip(*buffer)))
+
     def nextset(self):
         """
         """
@@ -259,8 +283,8 @@ class TDengineCursor(object):
         # if threading.get_ident() != self._threadId:
         #     info = "Cursor handleresult:Thread ID not match,creater:"+str(self._threadId)+" caller:"+str(threading.get_ident())
         #     raise OperationalError(info)
-            # print(info)
-            # return None
+        # print(info)
+        # return None
 
         self._description = []
         for ele in self._fields:
@@ -268,4 +292,3 @@ class TDengineCursor(object):
                 (ele['name'], ele['type'], None, None, None, None, False))
 
         return self._result
-

src/connector/python/osx/python3/taos/dbapi.py

@@ -4,6 +4,7 @@
 import time
 import datetime
 
+
 class DBAPITypeObject(object):
     def __init__(self, *values):
         self.values = values
@@ -16,23 +17,28 @@ class DBAPITypeObject(object):
         else:
             return -1
 
+
 Date = datetime.date
 Time = datetime.time
 Timestamp = datetime.datetime
 
+
 def DataFromTicks(ticks):
     return Date(*time.localtime(ticks)[:3])
 
+
 def TimeFromTicks(ticks):
     return Time(*time.localtime(ticks)[3:6])
 
+
 def TimestampFromTicks(ticks):
     return Timestamp(*time.localtime(ticks)[:6])
 
+
 Binary = bytes
 
 # STRING = DBAPITypeObject(*constants.FieldType.get_string_types())
 # BINARY = DBAPITypeObject(*constants.FieldType.get_binary_types())
 # NUMBER = BAPITypeObject(*constants.FieldType.get_number_types())
 # DATETIME = DBAPITypeObject(*constants.FieldType.get_timestamp_types())
-# ROWID = DBAPITypeObject()
\ No newline at end of file
+# ROWID = DBAPITypeObject()

src/connector/python/osx/python3/taos/error.py

 """Python exceptions
 """
 
+
 class Error(Exception):
     def __init__(self, msg=None, errno=None):
         self.msg = msg
         self._full_msg = self.msg
         self.errno = errno
-    
+
     def __str__(self):
         return self._full_msg
 
+
 class Warning(Exception):
     """Exception raised for important warnings like data truncations while inserting.
     """
     pass
 
+
 class InterfaceError(Error):
-    """Exception raised for errors that are related to the database interface rather than the database itself. 
+    """Exception raised for errors that are related to the database interface rather than the database itself.
     """
     pass
 
+
 class DatabaseError(Error):
-    """Exception raised for errors that are related to the database. 
+    """Exception raised for errors that are related to the database.
     """
     pass
 
+
 class DataError(DatabaseError):
     """Exception raised for errors that are due to problems with the processed data like division by zero, numeric value out of range.
     """
     pass
 
+
 class OperationalError(DatabaseError):
     """Exception raised for errors that are related to the database's operation and not necessarily under the control of the programmer
     """
@@ -41,17 +47,20 @@ class IntegrityError(DatabaseError):
     """
     pass
 
+
 class InternalError(DatabaseError):
     """Exception raised when the database encounters an internal error.
     """
     pass
 
+
 class ProgrammingError(DatabaseError):
     """Exception raised for programming errors.
     """
     pass
 
+
 class NotSupportedError(DatabaseError):
     """Exception raised in case a method or database API was used which is not supported by the database,.
     """
-    pass
\ No newline at end of file
+    pass

src/connector/python/osx/python3/taos/subscription.py

 from .cinterface import CTaosInterface
 from .error import *
 
+
 class TDengineSubscription(object):
     """TDengine subscription object
     """
+
     def __init__(self, sub):
         self._sub = sub
 
-
     def consume(self):
         """Consume rows of a subscription
         """
         if self._sub is None:
             raise OperationalError("Invalid use of consume")
-        
+
         result, fields = CTaosInterface.consume(self._sub)
         buffer = [[] for i in range(len(fields))]
         while True:
             block, num_of_fields = CTaosInterface.fetchBlock(result, fields)
-            if num_of_fields == 0: break
+            if num_of_fields == 0:
+                break
             for i in range(len(fields)):
                 buffer[i].extend(block[i])
 
         self.fields = fields
         return list(map(tuple, zip(*buffer)))
 
-
-    def close(self, keepProgress = True):
+    def close(self, keepProgress=True):
         """Close the Subscription.
         """
         if self._sub is None:
@@ -38,15 +39,19 @@ class TDengineSubscription(object):
 
 if __name__ == '__main__':
     from .connection import TDengineConnection
-    conn = TDengineConnection(host="127.0.0.1", user="root", password="taosdata", database="test")
+    conn = TDengineConnection(
+        host="127.0.0.1",
+        user="root",
+        password="taosdata",
+        database="test")
 
     # Generate a cursor object to run SQL commands
     sub = conn.subscribe(True, "test", "select * from meters;", 1000)
 
-    for i in range(0,10):
+    for i in range(0, 10):
         data = sub.consume()
         for d in data:
             print(d)
 
     sub.close()
-    conn.close()
\ No newline at end of file
+    conn.close()

src/connector/python/windows/python2/taos/__init__.py

@@ -3,7 +3,6 @@ from .connection import TDengineConnection
 from .cursor import TDengineCursor
 
 # Globals
-apilevel = '2.0.3'
 threadsafety = 0
 paramstyle = 'pyformat'
 
@@ -21,4 +20,4 @@ def connect(*args, **kwargs):
 
     @rtype: TDengineConnector
     """
-    return TDengineConnection(*args, **kwargs)
\ No newline at end of file
+    return TDengineConnection(*args, **kwargs)

src/connector/python/windows/python3/taos/__init__.py

@@ -3,7 +3,6 @@ from .connection import TDengineConnection
 from .cursor import TDengineCursor
 
 # Globals
-apilevel = '2.0.3'
 threadsafety = 0
 paramstyle = 'pyformat'
 
@@ -21,4 +20,4 @@ def connect(*args, **kwargs):
 
     @rtype: TDengineConnector
     """
-    return TDengineConnection(*args, **kwargs)
\ No newline at end of file
+    return TDengineConnection(*args, **kwargs)

tests/pytest/insert/basic_unsigned.py

+###################################################################
+#           Copyright (c) 2016 by TAOS Technologies, Inc.
+#                     All rights reserved.
+#
+#  This file is proprietary and confidential to TAOS Technologies.
+#  No part of this file may be reproduced, stored, transmitted,
+#  disclosed or used in any form or by any means other than as
+#  expressly provided by the written permission from Jianhui Tao
+#
+###################################################################
+
+# -*- coding: utf-8 -*-
+
+import sys
+from util.log import *
+from util.cases import *
+from util.sql import *
+
+
+class TDTestCase:
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor(), logSql)
+
+    def run(self):
+        tdSql.prepare()
+
+        ret = tdSql.execute(
+            'create table tb (ts timestamp, speed int unsigned)')
+
+        insertRows = 10
+        tdLog.info("insert %d rows" % (insertRows))
+        for i in range(0, insertRows):
+            ret = tdSql.execute(
+                'insert into tb values (now + %dm, %d)' %
+                (i, i))
+
+        tdLog.info("insert earlier data")
+        tdSql.execute('insert into tb values (now - 5m , 10)')
+        tdSql.execute('insert into tb values (now - 6m , 10)')
+        tdSql.execute('insert into tb values (now - 7m , 10)')
+        tdSql.execute('insert into tb values (now - 8m , 4294967294)')
+
+        tdSql.error('insert into tb values (now - 9m, -1)')
+        tdSql.error('insert into tb values (now - 9m, 4294967295)')
+
+        tdSql.query("select * from tb")
+        tdSql.checkRows(insertRows + 4)
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())