Installing pyodbc fails on OSX 10.9 (Mavericks)

I had no joy with @Vitaly’s answer because there appears to be an issue building packages on Mavericks to do with the lack of support for hard-linking. I couldn’t get the package to build.

So I opted for @Vitaly’s second suggestion which was to copy the necessary files from the [libiodbc_sources]/include/ directory to /usr/include and the install worked find. Here is a list of the files you will need to copy:

• sql.h
• sqltypes.h
• iodbcunix.h
• sqlext.h
• sqlucode.h

You can use Homebrew to install unixodbc, then pyodbc via pip in the usual fashion.

brew install unixodbc && pip install pyodbc

This works for me on Mavericks.

If you see errors like

clang: error: unknown argument: '-mno-fused-madd' [-Wunused-command-line-argument-hard-error-in-future]

The problem is that with Mavericks Apple has removed gcc from the command line developer tools; it is now clang just symlinked to gcc. The --mno-fused-madd flag is not supported by clang (same goes for lots of other flags).

One solution might be to install gcc using homebrew or another method and symlink /usr/bin/gcc to a proper gcc.

A simpler workaround that worked for me is suppressing these error by turning them into warnings:

export CFLAGS=-Qunused-arguments

After settings that I was able to pip install pyodbc without errors.

PS! In future versions of clang this might not be possible. At least it works on:

$> gcc -v
Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr --with-gxx-include-dir=/usr/include/c++/4.2.1
Apple LLVM version 5.1 (clang-503.0.38) (based on LLVM 3.4svn)
Target: x86_64-apple-darwin13.1.0
Thread model: posix

Refs:
https://bitbucket.org/cffi/cffi/issue/46/unused-mno-fused-madd-clang-warnings-on-os
https://coderwall.com/p/lqpp8w
clang: error: unsupported option '-static-libgcc' on Mac OSX Mavericks

See my installation instructions which I’ve written after some futile attempts of the other answers provided:

First, install the following libraries:

$ brew install unixodbc
$ brew install freetds --with-unixodbc

FreeTDS should already work now, without configuration:

$ tsql -S [IP or hostname] -U [username] -P [password]
locale is "en_US.UTF-8"
locale charset is "UTF-8"
using default charset "UTF-8"
1> ^D

Onto unixODBC, we need to link to the driver, edit /usr/local/etc/odbcinst.ini:

[FreeTDS]
Description = TD Driver (MSSQL)
Driver = /usr/local/lib/libtdsodbc.so
Setup = /usr/local/lib/libtdsodbc.so
FileUsage = 1

The test command we’re using requires configuring a DSN, so edit /usr/local/etc/odbc.ini:

[MYDSN]
Driver = FreeTDS
Server = [IP address]
Port = 1433

The configuration for your DNS might vary, you might need the TDS_Version or Servername directives. The above worked for me for SQL Server 2008 R2. Now, run the test command:

$ isql MYDSN [username] [password] -v
+---------------------------------------+
| Connected!                            |
|                                       |
| sql-statement                         |
| help [tablename]                      |
| quit                                  |
|                                       |
+---------------------------------------+
SQL> ^D

If the test succeeded, you can continue onto installing the Python library pyodbc. The current version of writing (3.0.7) doesn’t link with unixODBC on OS X, so a change has to be made to setup.py. Download the source package and extract it somewhere. Find the following lines (146-147):

    elif sys.platform == 'darwin':
        # OS/X now ships with iODBC.

And change this line:

        settings['libraries'].append('iodbc')

into:

        settings['libraries'].append('odbc')

Then run the following command to install:

> python install .

Now pyodbc should work:

import pyodbc
pyodbc.connect('DSN=MYDSN;UID=[username];PWD=[password]')

You don’t need to have your DSN configured in odbc.ini, so clear that file. You probably want to select a database on connect, so change your connect line to read:

pyodbc.connect('DRIVER=FreeTDS;SERVER=[IP address];PORT=1433;DATABASE=[database];UID=[username];PWD=[password]')

Note that you could also link to the library file of FreeTDS instead of using odbcinst.ini, like this:

pyodbc.connect('DRIVER=/usr/local/lib/libtdsodbc.so;SERVER=[IP address];PORT=1433;DATABASE=[database];UID=[username];PWD=[password]')

After many dead ends, this worked for me:

$ brew unlink unixodbc
$ brew install unixodbc  --universal
$ sudo pip install --upgrade --global-option=build_ext --global-option="-I/usr/local/include" --global-option="-L/usr/local/lib" --allow-external pyodbc --allow-unverified pyodbc pyodbc

I just went through the whole process on Mac OS X; connecting to pyodbc to MS SQL Server 2014. The whole process is as follows:

Connection pipeline:

pyodbc ----> iodbc ----> freetds ----> MS SQL Server 2014

1. Build freetds (the SQL Server driver/connector):

   ./configure --prefix=/usr/local --with-tdsver=8.0
   
   make
   
   sudo make install
   
   // you should see /usr/local/lib/libtdsodbc.so was generated
   
   //test method 1:
   
   TDSVER=8.0 tsql -H hostname -p 1433 -U username -P XXX -D databasename
   
   //test method 2:
   
   //config /usr/local/etc/freetds.conf
   [mssqlserver]
       host = XXX
       port = 1433
       tds version = 8.0
   
   //run
   
   tsql -S mssqlserver -U username -P XXX -D databasename  
   
   //if you can run sql, good to go!
   

2. Build iodbc (ODBC manager):

   //download from github, go to the folder
   
   cd mac
   
   ./configure 
   
   ./make
   
   sudo ./make install
   
   //config /usr/local/etc/odbc.ini
   [mssqlserver]
   Driver=/usr/local/lib/libtdsodbc.so
   TDS_Version=8.0
   Server=xxxx
   Port = 1433
   Trace = Yes
   Description=XXX
   
   //test
   
   which iodbctest
   
   iodbctest 
   
   DSN=masqlserver;UID=xxx;PWD=xxx
   
   //if you can run sql, good to go!
   

3. Connect pyodbc (Python ODBC wrapper) to iodbc:

   pip install pyodbc 
   
   //in python,
   
   conn = pyodbc.connect("DSN=mssqlserver;UID=xxx;PWD=xxxx") 
   

I was successful with
sudo port install py-pyodbc

This worked for me after trying just about everything else suggested.

brew install unixodbc
sudo pip install --upgrade --global-option=build_ext --global-option="-I/usr/local/include" --global-option="-L/usr/local/lib" --allow-external pyodbc --allow-unverified pyodbc pyodbc

Running Mac OS 10.11.1,Homebrew 0.9.5, and pip 7.1.2

I met the the same problem today on ubuntu 14.04. I found some guy in below link said should install unixodbc-dev.

https://code.google.com/p/pyodbc/issues/detail?id=55

I did it, and then the pip install success.

Hope this helpful.

I’ll add my $0.02 to this. Vitaly’s answer was the main inspiration.

OSX 10.9.5, MacPorts 2.3.4, pip 8.1.2 (which did not have an –no-install option), virtualenv 14.0.6

Also helped: https://stackoverflow.com/a/22942120/1394353

Anyway, install iODBC via MacPorts

sudo port install libiodbc

The missing sql.h is deposited by MacPorts @ /opt/local/include

Now, tell pip where it can find the includes (that’s where the linked answer came in handy):

pip install pyodbc --global-option=build_ext --global-option="-I/opt/local/include/"

OS Version: El Capitan 10.11.6
Python Version: 2.7.11
Pip Version: pip 9.0.1

1. Install iodbc for Mac (my installation is in [iODB_loc]=/usr/local/iODBC)
2. pip install --download [download_location] pyodbc==3.0.10
3. cd [download_location]
4. tar -xvzf pyodbc-3.0.10.tar.gz
5. cd pyodbc-3.0.10
6. vim setup.py: 
settings['libraries'].append('odbc')
->
settings['libraries'].append('iodbc')
7. python setup.py build_ext --include-dirs=[iODB_loc]/include/
8. pip install --upgrade .

As pip doesn’t support --no-install option anymore and the --download option is deprecated. I had to follow the following steps.

pip download pyodbc
tar -zxvf pyodbc-4.0.17.tar.gz
python setup.py build_ext --include-dirs=[DIRECTORY CONTAINING THE HEADERS]
pip install pyodbc