Can't install discount with pip: error: command 'cc' failed with exit status 1

Question

I am running into many problems when trying to install the discount package on osx 10.9 Mavericks. I'm working with the django framework.

My steps are (while having a virtualenv activated):

pip install discount

Then I get:

.
.
.

1 error generated.

error: command 'cc' failed with exit status 1

----------------------------------------
Cleaning up...
Command /Users/KaeserMic/Sites/2013/Duotones/naturkostbar/env/bin/python -c "import setuptools;__file__='/Users/KaeserMic/Sites/2013/Duotones/naturkostbar/env/build/discount/setup.py';exec(compile(open(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /var/folders/4b/smwv2y_s32z044brp6t__ssh0000gp/T/pip-65i7x3-record/install-record.txt --single-version-externally-managed --install-headers /Users/KaeserMic/Sites/2013/Duotones/naturkostbar/env/include/site/python2.7 failed with error code 1 in /Users/KaeserMic/Sites/2013/Duotones/naturkostbar/env/build/discount
Storing complete log in /Users/KaeserMic/.pip/pip.log

Here is the complete log:

https://gist.github.com/MichaelKaeser/7302829

Things I did:

• updating python
• updating pip
• updating virtualenv
• updating homebrew

Any ideas how to solve this issue? Thanks in advance.

Solution

Try:

sudo ARCHFLAGS=-Wno-error=unused-command-line-argument-hard-error-in-future pip install discount

This seems to be an issue with LLVM in XCode 5.1 as mentioned here: Can't install mysql gem on OS X

Comments

[MichaelKaeser]

Yes it ouutputs both an error: clang: error: no input files. But I do have Xcode installed, version 5.0.1

[Admin]

That error is normal because there's no input file. cc is installed on your mac by default I guess. Anyway, just google for Xcode Command Line Tools 10.9 and install them.

[Admin]

Try this: ln -s /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.‌​platform/Developer/S‌​DKs/MacOSX10.9.sdk/S‌​ystem/Library/Framew‌​orks/Tk.framework/Ve‌​rsions/8.5/Headers/X‌​11 /usr/local/include/X11

[MichaelKaeser]

I created the link to X11 like you explained, but it doesn't change anything. What's the link supposed to achieve?

[Admin]

It's creating a symbolic link for X11, some people worked with them. Anyway, these are the main problems. The last thing I could think of is to run xcode-select --install in the terminal, in case you already installed the tools, it shouldn't download. Give it a shot anyway. I had the same issue, and it worked after installing the xcode command line tools.

[MichaelKaeser]

Tried it, but an alert window pops up with: Can't install the software because it is not currently available from the Software Update server. Already did that 12 hours ago...

[Mart Coul]

I add the same error on Mavericks. Although Xcode was installed, I still needed to run the xcode-select command as explained in the answer to make it work. xcode-select --install

[Hartley Brody]

Note to any copy/paster's that the pip install command for the OP's package is on the end of that command. You might have to edit if you got this error while installing something else.

[andilabs]

It helped me installing jellyfish on Mac OS X 10.9. THANKS!