Question

mac-cordreys-macbook-pro:~ maccordrey$ sudo pip install PIL
/usr/local/bin/pip:5: UserWarning: Module pkg_resources was already imported from /System/Library/Frameworks/Python.framework/Versions/2.5/Extras/lib/python/pkg_resources.pyc, but /Library/Python/2.5/site-packages is being added to sys.path
  from pkg_resources import load_entry_point
/usr/local/bin/pip:5: UserWarning: Module site was already imported from /System/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site.pyc, but /Library/Python/2.5/site-packages is being added to sys.path
  from pkg_resources import load_entry_point
Downloading/unpacking PIL
  Running setup.py egg_info for package PIL
    /Library/Python/2.5/site-packages/setuptools/command/install_scripts.py:3: UserWarning: Module pkg_resources was already imported from /System/Library/Frameworks/Python.framework/Versions/2.5/Extras/lib/python/pkg_resources.pyc, but /Library/Python/2.5/site-packages is being added to sys.path
      from pkg_resources import Distribution, PathMetadata, ensure_directory
    /Library/Python/2.5/site-packages/setuptools/command/install_scripts.py:3: UserWarning: Module site was already imported from /System/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site.pyc, but /Library/Python/2.5/site-packages is being added to sys.path
      from pkg_resources import Distribution, PathMetadata, ensure_directory
    WARNING: '' not a valid package name; please use only.-separated package names in setup.py
Installing collected packages: PIL
  Running setup.py install for PIL
    /Library/Python/2.5/site-packages/setuptools/command/install_scripts.py:3: UserWarning: Module pkg_resources was already imported from /System/Library/Frameworks/Python.framework/Versions/2.5/Extras/lib/python/pkg_resources.pyc, but /Library/Python/2.5/site-packages is being added to sys.path
      from pkg_resources import Distribution, PathMetadata, ensure_directory
    /Library/Python/2.5/site-packages/setuptools/command/install_scripts.py:3: UserWarning: Module site was already imported from /System/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site.pyc, but /Library/Python/2.5/site-packages is being added to sys.path
      from pkg_resources import Distribution, PathMetadata, ensure_directory
    WARNING: '' not a valid package name; please use only.-separated package names in setup.py
    --- using frameworks at /System/Library/Frameworks
    building '_imaging' extension
    gcc -fno-strict-aliasing -Wno-long-double -no-cpp-precomp -mno-fused-madd -fno-common -dynamic -DNDEBUG -g -Os -Wall -Wstrict-prototypes -DMACOSX -I/usr/include/ffi -DENABLE_DTRACE -arch i386 -arch ppc -pipe -IlibImaging -I/System/Library/Frameworks/Python.framework/Versions/2.5/include -I/System/Library/Frameworks/Python.framework/Versions/2.5/include/python2.5 -c _imaging.c -o build/temp.macosx-10.5-i386-2.5/_imaging.o
    unable to execute gcc: No such file or directory
    error: command 'gcc' failed with exit status 1
    Complete output from command /System/Library/Frameworks/Python.framework/Versions/2.5/Resources/Python.app/Contents/MacOS/Python -c "import setuptools;__file__='/Users/maccordrey/build/PIL/setup.py';exec(compile(open(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --single-version-externally-managed --record /tmp/pip-5EOlVp-record/install-record.txt:
    /Library/Python/2.5/site-packages/setuptools/command/install_scripts.py:3: UserWarning: Module pkg_resources was already imported from /System/Library/Frameworks/Python.framework/Versions/2.5/Extras/lib/python/pkg_resources.pyc, but /Library/Python/2.5/site-packages is being added to sys.path

  from pkg_resources import Distribution, PathMetadata, ensure_directory

/Library/Python/2.5/site-packages/setuptools/command/install_scripts.py:3: UserWarning: Module site was already imported from /System/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site.pyc, but /Library/Python/2.5/site-packages is being added to sys.path

  from pkg_resources import Distribution, PathMetadata, ensure_directory

WARNING: '' not a valid package name; please use only.-separated package names in setup.py

running install

running build

running build_py

running build_ext

--- using frameworks at /System/Library/Frameworks

building '_imaging' extension

gcc -fno-strict-aliasing -Wno-long-double -no-cpp-precomp -mno-fused-madd -fno-common -dynamic -DNDEBUG -g -Os -Wall -Wstrict-prototypes -DMACOSX -I/usr/include/ffi -DENABLE_DTRACE -arch i386 -arch ppc -pipe -IlibImaging -I/System/Library/Frameworks/Python.framework/Versions/2.5/include -I/System/Library/Frameworks/Python.framework/Versions/2.5/include/python2.5 -c _imaging.c -o build/temp.macosx-10.5-i386-2.5/_imaging.o

unable to execute gcc: No such file or directory

error: command 'gcc' failed with exit status 1

----------------------------------------
Command /System/Library/Frameworks/Python.framework/Versions/2.5/Resources/Python.app/Contents/MacOS/Python -c "import setuptools;__file__='/Users/maccordrey/build/PIL/setup.py';exec(compile(open(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --single-version-externally-managed --record /tmp/pip-5EOlVp-record/install-record.txt failed with error code 1
Storing complete log in /Users/maccordrey/.pip/pip.log
mac-cordreys-macbook-pro:~ maccordrey$ 

Any ideas? I’m not really sure why I’m receiving this error? I’ve just begun using PIP an haven’t had any problems yet, do I need to move the tar file out of my downloads folder?

Answer 1

Some Python packages require building from source. Doing so requires gcc, which on OS X is provided by XCode. If you don’t have XCode installed, install it and it should fix the issue.