问题
I'm trying to install PyODBC on Heroku, but I get fatal error: sql.h: No such file or directory in the logs when pip runs. How do I fix this error?
回答1:
To follow up on the answer below...
Example for Ubuntu:
sudo apt-get install unixodbc unixodbc-dev
Example for CentOS:
sudo yum install unixODBC-devel
On Windows:
conn = pyodbc.connect('DRIVER={SQL Server};SERVER=yourserver.yourcompany.com;DATABASE=yourdb;UID=user;PWD=password')
On Linux:
conn = pyodbc.connect('DRIVER={FreeTDS};SERVER=yourserver.yourcompany.com;PORT=1433;DATABASE=yourdb;UID=user;PWD=password;TDS_VERSION=7.2')
回答2:
You need the unixODBC devel package. I don't know what distro you are using but you can google it and build from source.
回答3:
You can add Heroku build pack to preinstall required apt packages first
heroku buildpacks:add --index 1 https://github.com/heroku/heroku-buildpack-apt
Add Aptfile in the your directory root and to the repository as well
unixodbc
unixodbc-dev
python-pyodbc
libsqliteodbc
It will install everything you need to work with pyodbc or aioodbc packages from python on Heroku
回答4:
Create a file named Aptfile in the root directory of your project. The content of the file should be:
unixodbc
unixodbc-dev
python-pyodbc
Pass this command on the Command Prompt/shell:
**heroku buildpacks:add --index 1 https://github.com/heroku/heroku-buildpack-apt**
After completing above steps, commit the repository and then push it using
git push heroku master
回答5:
The other answers are more or less correct; you're missing the unixodbc-dev[el] package for your operating system; that's what pip needs in order to build pyodbc from source.
However, a much easier option is to install pyodbc via the system package manager. On Debian/Ubuntu, for example, that would be apt-get install python-pyodbc. Since pyodbc has a lot of compiled components and interfaces heavily with the UnixODBC OS-level packages, it is probably a better fit for a system package rather than a Python/pip-installed one.
You can still list it as a dependency in your requirements.txt files if you're making code for distribution, but it'll usually be easier to install it via the system PM.
来源：https://stackoverflow.com/questions/31353137/sql-h-not-found-when-installing-pyodbc-on-heroku