diff --git a/src/connector/python/linux/python2/taos/cinterface.py b/src/connector/python/linux/python2/taos/cinterface.py
index d9460efb213bfd3eb35d114676af49d611b8dd96..6d792fa92fb384b41e452a7a37c55f3fd33d2a09 100644
--- a/src/connector/python/linux/python2/taos/cinterface.py
+++ b/src/connector/python/linux/python2/taos/cinterface.py
@@ -96,7 +96,7 @@ def _crow_nchar_to_python(data, num_of_rows, nbytes=None, micro=False):
     for i in range(abs(num_of_rows)):
         try:
             if num_of_rows >= 0:
-                res.append( (ctypes.cast(data+nbytes*(abs(num_of_rows - i -1)),  ctypes.POINTER(ctypes.c_wchar * (nbytes//4))))[0].value )
+                res.append( (ctypes.cast(data+nbytes*(abs(num_of_rows - i -1)),  ctypes.POINTER(ctypes.c_char * (nbytes//4))))[0].value )
             else:
                 res.append( (ctypes.cast(data+nbytes*i,  ctypes.POINTER(ctypes.c_wchar * (nbytes//4))))[0].value )
         except ValueError:
diff --git a/src/connector/python/linux/python3/taos/cinterface.py b/src/connector/python/linux/python3/taos/cinterface.py
index 6ef54f1ba550ad22f906433801492082d599809c..49dd5d00e33f0ab120553b2a05fdcb887bcc7fd6 100644
--- a/src/connector/python/linux/python3/taos/cinterface.py
+++ b/src/connector/python/linux/python3/taos/cinterface.py
@@ -96,7 +96,7 @@ def _crow_nchar_to_python(data, num_of_rows, nbytes=None, micro=False):
     for i in range(abs(num_of_rows)):
         try:
             if num_of_rows >= 0:
-                res.append( (ctypes.cast(data+nbytes*(abs(num_of_rows - i -1)),  ctypes.POINTER(ctypes.c_wchar * (nbytes//4))))[0].value )
+                res.append( (ctypes.cast(data+nbytes*(abs(num_of_rows - i -1)),  ctypes.POINTER(ctypes.c_char * (nbytes//4))))[0].value )
             else:
                 res.append( (ctypes.cast(data+nbytes*i,  ctypes.POINTER(ctypes.c_wchar * (nbytes//4))))[0].value )
         except ValueError:
diff --git a/src/connector/python/windows/python2/taos/cinterface.py b/src/connector/python/windows/python2/taos/cinterface.py
index a18d372db2be482b289581f133c1c50e78f3adb0..a62ac2801c2b8c61d1d0f3448e0fbf41d98aff6d 100644
--- a/src/connector/python/windows/python2/taos/cinterface.py
+++ b/src/connector/python/windows/python2/taos/cinterface.py
@@ -96,7 +96,7 @@ def _crow_nchar_to_python(data, num_of_rows, nbytes=None, micro=False):
     for i in range(abs(num_of_rows)):
         try:
             if num_of_rows >= 0:
-                res.append( (ctypes.cast(data+nbytes*(abs(num_of_rows - i -1)),  ctypes.POINTER(ctypes.c_wchar * (nbytes//4))))[0].value )
+                res.append( (ctypes.cast(data+nbytes*(abs(num_of_rows - i -1)),  ctypes.POINTER(ctypes.c_char * (nbytes//4))))[0].value )
             else:
                 res.append( (ctypes.cast(data+nbytes*i,  ctypes.POINTER(ctypes.c_wchar * (nbytes//4))))[0].value )
         except ValueError:
diff --git a/src/connector/python/windows/python3/taos/cinterface.py b/src/connector/python/windows/python3/taos/cinterface.py
index cbcf2d884e37668c7100fefcea78e64d80f889b1..4d009f0be0b4232d4c55c951b9ea13e1830f496a 100644
--- a/src/connector/python/windows/python3/taos/cinterface.py
+++ b/src/connector/python/windows/python3/taos/cinterface.py
@@ -96,7 +96,7 @@ def _crow_nchar_to_python(data, num_of_rows, nbytes=None, micro=False):
     for i in range(abs(num_of_rows)):
         try:
             if num_of_rows >= 0:
-                res.append( (ctypes.cast(data+nbytes*(abs(num_of_rows - i -1)),  ctypes.POINTER(ctypes.c_wchar * (nbytes//4))))[0].value )
+                res.append( (ctypes.cast(data+nbytes*(abs(num_of_rows - i -1)),  ctypes.POINTER(ctypes.c_char * (nbytes//4))))[0].value )
             else:
                 res.append( (ctypes.cast(data+nbytes*i,  ctypes.POINTER(ctypes.c_wchar * (nbytes//4))))[0].value )
         except ValueError: