We're trying to use pyodbc to connect to an ODBC connection that's correctly configured through Win10's OBDBC Data Source Administrator (32-bit), but the driver is "SPAN Open ODBC", a string we ironically can't find anywhere on the internet.
pyodbc throws "pyodbc.InterfaceError: ('IM002', '[IM002] [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified (0) (Sified (0) (SQLDriverConnect)')", and when we check [print(x) for x in pyodbc.drivers()], "SPAN Open ODBC" is indeed absent.
We've found the DLL the Win ODBC Administrator uses at C:\Windows\SysWOW64\dhodbc.dll, but don't know how / if we should pass this to pyodbc. The company Win10 ODBC Administrator lists for it is "Dharma Systems", and the only docs we can find are from 1999...
I know this isn't much to work with but we're grasping at straws here. Do we have any options?
This is an overused topic of discussion but the waters are still unclear. I have developed a program that uses pyodbc to connect to a .mdb file, it successfully works when I use the 32-bit version of Python and only if on the consrtuctor string write the following constr = "DRIVER={{Microsoft Access Driver (*.mdb)}};Dbq={};".format(dbname) so I naturally thought it was a mismatch between 32bit access and 64bit Python.
However when I tried to make a simple test:
import pyodbc
conn=pyodbc.connect(r'Driver={Microsoft Access Driver (*.mdb, *accdb)};DBQ=C:\Users\emate\OneDrive\Desktop\pyodbctest\Database2.accdb;')
cursor=conn.cursor()
cursor.execute('SELECT * FROM Table1')
for row in cursor.fetchall():
print(row)
I ran it and got the same error. The problem is I checked the Office Version and says it is 64bit,python is also 64bit so if it is not a mismatch problem then what is this problem?
I want to run the program on a raspberrypi microcomputer (64bit) and it is tremendously hard to use a 32bit version on it to just run the program.
i'm trying to connect to access database on my ubuntu 18 but i cant
self.con = pyodbc.connect(
r'Driver={Microsoft Access Driver (*.accdb)};'
r'DBQ=C:\Users\Derar\PycharmProjects\ULMS\ulms.accdb;PWD=v7WC$=3ZJ5pX?h?TM54S')
self.cmd = self.con.cursor()
I Get This Error
''`r'DBQ=C:\Users\Derar\PycharmProjects\ULMS\ulms.accdb;PWD=v7WC$=3ZJ5pX?h?TM54S')
pyodbc.InterfaceError: ('IM002', '[IM002] [unixODBC][Driver Manager]Data source name not found, and no default driver specified (0) (SQLDriverConnect)')`
It looks like your trying to run code written for Windows on Ubuntu.
It looks like the path name is not a POSIX style path.
You will need to configure linux odbc properly - or just install python on Windows and run your code there...
As far as I know there is no free linux ODBC driver for accdb files. You would likely have to convert the database, use commercial software, or access the DB from Windows.
See my answer here:
Connect to MS Access in Python
I believe it's applicable to your scenario.
I'm setting up a python script to connect to an instance of the azure cloud database, and seeing a difference in the connection when I use IDLE vs when I try to execute the connection from a script. For example, when I do the following in IDLE:
>>> import pyodbc
>>> conn = pyodbc.connect('DRIVER={SQL Server};SERVER=<my.database.host.info>,1433', user='<my_username#mydatabase', password='password', database='database')
I'm able connect successfully and execute a basic query against one of the tables in the database.
However when I use the same connection string (copied from the IDLE console) in a script, I get the following error:
pyodbc.Error: ('IM002', '[IM002] [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified (0) (SQLDriverConnect)')
Usually, the issue is raised because the 32/64 bit version of python environment and odbc driver are mismatched.
You may check the python version and odbc driver version you used to run the script. You have to manage to change both of them need to be 32-bit (or both 64-bit) in order for this to work.
You can get the specified version of pyodbc extension from http://www.lfd.uci.edu/~gohlke/pythonlibs/#pyodbc.
I am unable to connect to mySQl db using pyodbc.
Here is a snippet of my script:
import pyodbc
import csv
cnxn = pyodbc.connect("DRIVER={MySQL ODBC 3.51 Driver}; SERVER=localhost;DATABASE=mydb; UID=root; PASSWORD=thatwouldbetelling;")
crsr = cnxn.cursor()
with open('C:\\skunkworks\\archive\\data\\myfile.csv','r') as myfile:
rows = csv.reader(myfile, delimiter=',', quotechar='"')
for row in rows:
insert_str = 'INSERT into raw_data VALUES(something, something)'
print insert_str
#crsr.execute(insert_str)
cnxn.commit()
myfile.close()
I get this error at the pyodbc.connect() line:
pyodbc.Error: ('IM002', '[IM002]
[Microsoft][ODBC Driver Manager] Data
source name not found and no default
driver specified (0)
(SQLDriverConnectW)')
I have another question regarding this error (and Python scripts in general). When I run this as a script, it fails silently (I was expecting a stack trace). I have to type each line in manually to find where the error occured.
I am being a bit lazy for now (no exception handling) - is this normal behaviour of a Python script without exception handling to fail silently?
[Edit]
I am not using mysqldb because I am already using pyodbc to extract my data from another source (MS Access). Ok, not a good reason - but I am already grappling with pyodbc and I dont really fancy having to wrestle with another library/module/package(whatever its called in Python) for a "one off" job. I just want to move my data of from various data sources in the Windows environment to mySQl on Linux. once on Linux, I'll be back on terra firma.
That is the entire 'script' right there. I just saved the code above into a file with a .py extension, and I run python myscript.py at the command line. I am running this on my XP machine
I had this same mistake so I went over all the version I was using for the connection. This is what I found out:
For Python 2.7 32 bits:
- pyodbc must be 32bits
- the DB Driver must be 32bits. (Microsoft Access should be 32 bits too)
For those who use the 64 bits version. You should check that everything is 64 bits too.
In my case I was trying to connecto to an Oracle DB and Microsoft Access DB so I had to make the following components match the architechture version:
pyodbc (MS Access)
python
cx_Oracle (Oracle dialect for SQLalchemy)
Oracle instantclient basic (Oracle. Do not forget to create the environment variable)
py2exe (Making the excecutable app)
Is that your driver name right?
You can check your driver name in
Windows -> Control panel -> System and security -> Administrative tools -> ODBC Data Sources -> Driver tab
then copy the river name to the first parameter
like
cnxn = pyodbc.connect("DRIVER={MySQL ODBC 5.3 ANSI Driver}; SERVER=localhost;DATABASE=books; UID=root; PASSWORD=password;")
And my problem solved
or you may not install the driver and the step is simple.
MySQLdb (or oursql) and pyodbc both have the same interface (DB-API 2), only you don't have to deal with ODBC's issues if you use the former. I strongly recommend you consider using MySQLdb (or oursql) instead.
First, According to the official docs, if you want to connect without creating a DSN, you need to specify OPTION=3 in the connection string:
ConnectionString = "DRIVER={MySQL ODBC 3.51 Driver};SERVER=localhost;DATABASE=test;USER=venu;PASSWORD=venu;OPTION=3;"
If that fails to work, I'd further troubleshoot by creating a DSN.
Second, no Python should not be failing silently. If that is the case when you run your script, there is something else amiss.
only need install mysql-connector-odbc-3.51.28-win32.msi.
and pyodbc-2.1.7.win32-py2.7.exe.
of course, you have ready installed MySQL and python 2.7.
example:
import pyodbc
cndBase = pyodbc.connect("DRIVER={MySQL ODBC 3.51 Driver}; SERVER=localhost; PORT=3306;DATABASE=nameDBase; UID=root; PASSWORD=12345;")
ptdBase = cndBase.cursor()
query_str = 'SELECT* FROM nameTabla;'
rows = ptdBase.execute(query_str)
for rw in rows:
print list(rw)`enter code here`
I was getting the same error. It seemed the driver i was using to make the connection was not the driver installed in my system.
Type ODBC on windows run and select ODBC Data Source(32/64) based on where you have installed the driver.
From there click on System DSN and click add. From there you can see the MySQL driver installed in your system. Use the ANSI driver in your code where you are making the connection.