Which specifications must I do in db2dsdriver.cfg to connect to aDB2 database? I get SQL1532N error

Question

I installed Python 3.4 and ibm_db to connect to a DB2 database; I saw in Python interpreter that ibm_db 2.0.7 is installed, but during connection to a DB2 database, I got the SQL1532N error message, so I think I need to configure db2dsdriver.cfg and for that I got the db2dsdriver.xsd file, but I don't know what I must change in it. Shall I change all of the "databases" to the actual name of the database in the DB2 instance I try to connect? Or what else must I change?

BTW, there is no db2dsdriver.cfg installed in my Windows 10 and regarding some info around I thought it's dynamically created from db2dsdriver.xsd which is in \cfg subdirectory under Python34.

<?xml version="1.0" encoding="utf-8"?>
<xs:schema id="configuration" xmlns="" xmlns:xs="http://www.w3.org/2001/XMLSchema" >
  <xs:element name="parameter">
    <xs:complexType>
      <xs:attribute name="name" type="xs:string" />
      <xs:attribute name="value" type="xs:string" />
    </xs:complexType>
  </xs:element>
  <xs:simpleType name="whitespacesonly">
    <xs:restriction base="xs:string">
      <xs:pattern value="\s*" />
    </xs:restriction>
  </xs:simpleType>
  <xs:element name="client">
    <xs:complexType>
     <xs:simpleContent>
       <xs:extension base="whitespacesonly">
        <xs:attribute name="name" type="xs:string" />
        <xs:attribute name="hostname" type="xs:string" />
        <xs:attribute name="listname" type="xs:string" />
      </xs:extension>
     </xs:simpleContent>  
    </xs:complexType>
  </xs:element>
  <xs:element name="configuration" >
    <xs:complexType>
      <xs:all>
        <xs:element name="dsncollection" minOccurs="0">
          <xs:complexType>
            <xs:choice minOccurs="0" maxOccurs="unbounded"> 
              <xs:element name="dsn" minOccurs="0" maxOccurs="unbounded">
                <xs:complexType>
                  <xs:choice minOccurs="0" maxOccurs="unbounded">
                    <xs:element ref="parameter" minOccurs="0" maxOccurs="unbounded" />
                    <xs:element name="specialregisters" minOccurs="0" maxOccurs="1">
                      <xs:complexType>
                        <xs:sequence>
                          <xs:element ref="parameter" minOccurs="0" maxOccurs="unbounded" />
                        </xs:sequence>
                      </xs:complexType>
                    </xs:element>
                    <xs:element name="sessionglobalvariables" minOccurs="0" maxOccurs="1">
                      <xs:complexType>
                        <xs:sequence>
                          <xs:element ref="parameter" minOccurs="0" maxOccurs="unbounded" />
                        </xs:sequence>
                      </xs:complexType>
                    </xs:element>
                  </xs:choice>
                  <xs:attribute name="alias" type="xs:string" />
                  <xs:attribute name="name" type="xs:string" />
                  <xs:attribute name="host" type="xs:string" />
                  <xs:attribute name="port" type="xs:string" />
                  <xs:attribute name="ldap" type="xs:integer" />
                </xs:complexType>
              </xs:element> 
              <xs:element name="defaultdsn" minOccurs="0" maxOccurs="1">
                <xs:complexType>
                  <xs:sequence>
                    <xs:element ref="parameter" minOccurs="0" maxOccurs="unbounded" />
                  </xs:sequence>
                  <xs:attribute name="alias" type="xs:string" />
                  <xs:attribute name="name" type="xs:string" />
                  <xs:attribute name="host" type="xs:string" />
                  <xs:attribute name="port" type="xs:string" />
                </xs:complexType>
              </xs:element>
            </xs:choice>
          </xs:complexType>
          <xs:unique name="oneDSNforEachAlias">
            <xs:selector xpath="dsn"/>
            <xs:field xpath="@alias"/>
          </xs:unique>
        </xs:element>
        <xs:element name="databases" minOccurs="0">
          <xs:complexType>
            <xs:sequence>
              <xs:element name="database" minOccurs="0" maxOccurs="unbounded">
                <xs:complexType>
                  <xs:choice minOccurs="0" maxOccurs="unbounded">
                    <xs:element ref="parameter" minOccurs="0" maxOccurs="unbounded" />
                    <xs:element name="specialregisters" minOccurs="0" maxOccurs="1">
                      <xs:complexType>
                        <xs:sequence>
                          <xs:element ref="parameter" minOccurs="0" maxOccurs="unbounded" />
                        </xs:sequence>
                      </xs:complexType>
                    </xs:element>
                    <xs:element name="sessionglobalvariables" minOccurs="0" maxOccurs="1">
                      <xs:complexType>
                        <xs:sequence>
                          <xs:element ref="parameter" minOccurs="0" maxOccurs="unbounded" />
                        </xs:sequence>
                      </xs:complexType>
                    </xs:element>
                    <xs:element name="wlb" minOccurs="0" maxOccurs="1">
                      <xs:complexType>
                        <xs:sequence>
                          <xs:element ref="parameter" minOccurs="0" maxOccurs="unbounded" />
                        </xs:sequence>
                      </xs:complexType>
                    </xs:element>
                    <xs:element name="acr" minOccurs="0" maxOccurs="1">
                      <xs:complexType>
                        <xs:choice minOccurs="0" maxOccurs="unbounded">
                          <xs:element ref="parameter" minOccurs="0" maxOccurs="unbounded" />
                          <xs:element name="alternateserverlist" minOccurs="0" maxOccurs="1">
                            <xs:complexType>
                              <xs:sequence>
                                <xs:element name="server" minOccurs="0" maxOccurs="unbounded">
                                  <xs:complexType>
                                    <xs:simpleContent>
                                      <xs:extension base="whitespacesonly">
                                        <xs:attribute name="name" type="xs:string" />
                                        <xs:attribute name="hostname" type="xs:string" />
                                        <xs:attribute name="port" type="xs:string" />
                                      </xs:extension>                                    
                                    </xs:simpleContent>                                    
                                  </xs:complexType>
                                </xs:element>
                              </xs:sequence>
                            </xs:complexType>
                          </xs:element>
                          <xs:element name="alternategroup" minOccurs="0" maxOccurs="1">
                            <xs:complexType>
                              <xs:choice minOccurs="0" maxOccurs="unbounded"> 
                                <xs:element ref="parameter" minOccurs="0" maxOccurs="unbounded" />
                                <xs:element name="database" minOccurs="0" maxOccurs="unbounded">
                                  <xs:complexType>
                                    <xs:simpleContent>
                                      <xs:extension base="whitespacesonly">
                                        <xs:attribute name="name" type="xs:string" />
                                        <xs:attribute name="host" type="xs:string" />
                                        <xs:attribute name="port" type="xs:string" />
                                      </xs:extension>
                                    </xs:simpleContent>
                                  </xs:complexType>
                                </xs:element>
                              </xs:choice>
                            </xs:complexType>
                          </xs:element>
                          <xs:element name="affinitylist" minOccurs="0" maxOccurs="1">
                            <xs:complexType>
                              <xs:sequence>
                                <xs:element name="list" minOccurs="0" maxOccurs="unbounded">
                                  <xs:complexType>
                                    <xs:simpleContent>
                                      <xs:extension base="whitespacesonly">
                                        <xs:attribute name="name" type="xs:string" />
                                        <xs:attribute name="serverorder" type="xs:string" />
                                      </xs:extension>
                                    </xs:simpleContent>  
                                  </xs:complexType>
                                </xs:element>
                              </xs:sequence>
                            </xs:complexType>
                          </xs:element>
                          <xs:element name="clientaffinitydefined" minOccurs="0" maxOccurs="1">
                            <xs:complexType>
                              <xs:sequence>
                                <xs:element ref="client" minOccurs="0" maxOccurs="unbounded" />
                              </xs:sequence>
                            </xs:complexType>
                          </xs:element>
                          <xs:element name="clientaffinityroundrobin" minOccurs="0" maxOccurs="1">
                            <xs:complexType>
                              <xs:sequence>
                                <xs:element ref="client" minOccurs="0" maxOccurs="unbounded" />
                              </xs:sequence>
                            </xs:complexType>
                          </xs:element>
                        </xs:choice>
                      </xs:complexType>
                    </xs:element>
                  </xs:choice>
                  <xs:attribute name="name" type="xs:string" />
                  <xs:attribute name="host" type="xs:string" />
                  <xs:attribute name="port" type="xs:string" />
                </xs:complexType>
              </xs:element>
            </xs:sequence>
          </xs:complexType>
        </xs:element>
        <xs:element name="parameters" minOccurs="0">
          <xs:complexType>
            <xs:choice minOccurs="0" maxOccurs="unbounded">
              <xs:element ref="parameter" minOccurs="0" maxOccurs="unbounded" />
              <xs:element name="specialregisters" minOccurs="0" maxOccurs="1">
                <xs:complexType>
                  <xs:sequence>
                    <xs:element ref="parameter" minOccurs="0" maxOccurs="unbounded" />
                  </xs:sequence>
                </xs:complexType>
              </xs:element>
              <xs:element name="sessionglobalvariables" minOccurs="0" maxOccurs="1">
                <xs:complexType>
                  <xs:sequence>
                    <xs:element ref="parameter" minOccurs="0" maxOccurs="unbounded" />
                  </xs:sequence>
                </xs:complexType>
              </xs:element>
            </xs:choice>
          </xs:complexType>
        </xs:element>
        <xs:element name="ldapserver" minOccurs="0">
         <xs:complexType>
            <xs:sequence>
              <xs:element ref="parameter" minOccurs="0" maxOccurs="unbounded" />
            </xs:sequence>
          </xs:complexType>
        </xs:element>
      </xs:all>
    </xs:complexType>
  </xs:element>
</xs:schema>

Answer 1

The error message corresponding to SQL1532N reads:

The db2dsdriver.cfg configuration file contains multiple entries for the database alias "database-alias".

which probably means that you do have a copy of db2dsdriver.cfg in one of the standard locations. Depending on which driver package you have installed, it might be under C:\ProgramData\IBM\DB2\<driver_copy_name or other path>\cfg.

The .xsd file describes the schema of the configuration file, there is no point in editing it. You need to locate the actual .cfg file and remove duplicate database records from it, leaving only one you need.