[ros-users] Pyyaml using easy_install on Mac OS X

Mon Mar 14 00:30:12 UTC 2011

I also had some trouble with yaml on my Mac. I solved it by installing
py26-yaml:

sudo port install py26-yaml

I'm using python2.6 on OS X 10.6.

Hope this helps!

Gonçalo Cabrita
ISR University of Coimbra
Portugal

On Sun, Mar 13, 2011 at 10:42 PM, S.Sudarshan <sudarshan85 at gmail.com> wrote:

> Hi,
>
>
> I am trying to install ROS on a Macbook (early 2009) running Mac OS X
> Leopard. I am unable to install Pyyaml. I also tried different things to get
> it installed in different ways but still out of luck. I will list what I've
> tried and what error I received.
>
> After running sudo easy_install -U pyyaml, I have the following output:
>
>> Searching for pyyaml
>> Reading http://pypi.python.org/simple/pyyaml/
>> Reading http://pyyaml.org/wiki/PyYAML
>> Best match: PyYAML 3.09
>> Downloading http://pyyaml.org/download/pyyaml/PyYAML-3.09.zip
>> Processing PyYAML-3.09.zip
>> Running PyYAML-3.09/setup.py -q bdist_egg --dist-dir /tmp/easy_install-ZJ-Kgs/PyYAML-3.09/egg-dist-tmp-4w-rDE
>> build/temp.macosx-10.5-i386-2.5/check_libyaml.c:2:18: error: yaml.h: No such file or directory
>> build/temp.macosx-10.5-i386-2.5/check_libyaml.c: In function ‘main’:
>> build/temp.macosx-10.5-i386-2.5/check_libyaml.c:5: error: ‘yaml_parser_t’ undeclared (first use in this function)
>> build/temp.macosx-10.5-i386-2.5/check_libyaml.c:5: error: (Each undeclared identifier is reported only once
>> build/temp.macosx-10.5-i386-2.5/check_libyaml.c:5: error: for each function it appears in.)
>> build/temp.macosx-10.5-i386-2.5/check_libyaml.c:5: error: syntax error before ‘parser’
>> build/temp.macosx-10.5-i386-2.5/check_libyaml.c:6: error: ‘yaml_emitter_t’ undeclared (first use in this function)
>> build/temp.macosx-10.5-i386-2.5/check_libyaml.c:8: warning: implicit declaration of function ‘yaml_parser_initialize’
>> build/temp.macosx-10.5-i386-2.5/check_libyaml.c:8: error: ‘parser’ undeclared (first use in this function)
>> build/temp.macosx-10.5-i386-2.5/check_libyaml.c:9: warning: implicit declaration of function ‘yaml_parser_delete’
>> build/temp.macosx-10.5-i386-2.5/check_libyaml.c:11: warning: implicit declaration of function ‘yaml_emitter_initialize’
>> build/temp.macosx-10.5-i386-2.5/check_libyaml.c:11: error: ‘emitter’ undeclared (first use in this function)
>> build/temp.macosx-10.5-i386-2.5/check_libyaml.c:12: warning: implicit declaration of function ‘yaml_emitter_delete’
>> build/temp.macosx-10.5-i386-2.5/check_libyaml.c:2:18: error: yaml.h: No such file or directory
>> build/temp.macosx-10.5-i386-2.5/check_libyaml.c: In function ‘main’:
>> build/temp.macosx-10.5-i386-2.5/check_libyaml.c:5: error: ‘yaml_parser_t’ undeclared (first use in this function)
>> build/temp.macosx-10.5-i386-2.5/check_libyaml.c:5: error: (Each undeclared identifier is reported only once
>> build/temp.macosx-10.5-i386-2.5/check_libyaml.c:5: error: for each function it appears in.)
>> build/temp.macosx-10.5-i386-2.5/check_libyaml.c:5: error: syntax error before ‘parser’
>> build/temp.macosx-10.5-i386-2.5/check_libyaml.c:6: error: ‘yaml_emitter_t’ undeclared (first use in this function)
>> build/temp.macosx-10.5-i386-2.5/check_libyaml.c:8: warning: implicit declaration of function ‘yaml_parser_initialize’
>> build/temp.macosx-10.5-i386-2.5/check_libyaml.c:8: error: ‘parser’ undeclared (first use in this function)
>> build/temp.macosx-10.5-i386-2.5/check_libyaml.c:9: warning: implicit declaration of function ‘yaml_parser_delete’
>> build/temp.macosx-10.5-i386-2.5/check_libyaml.c:11: warning: implicit declaration of function ‘yaml_emitter_initialize’
>> build/temp.macosx-10.5-i386-2.5/check_libyaml.c:11: error: ‘emitter’ undeclared (first use in this function)
>> build/temp.macosx-10.5-i386-2.5/check_libyaml.c:12: warning: implicit declaration of function ‘yaml_emitter_delete’
>> lipo: can't open input file: /var/tmp//cc9LRgKl.out (No such file or directory)
>> libyaml is not found or a compiler error: forcing --without-libyaml
>> (if libyaml is installed correctly, you may need to
>>  specify the option --include-dirs or uncomment and
>>  modify the parameter include_dirs in setup.cfg)
>> zip_safe flag not set; analyzing archive contents...
>> No eggs found in /tmp/easy_install-ZJ-Kgs/PyYAML-3.09/egg-dist-tmp-4w-rDE (setup script problem?)
>>
>>  After this I tried several different ways to install pyyaml:
>
> 1) I installed libyaml using macports and got the same error.
>
> 2) I saw this http://pyyaml.org/ticket/94 ticket and tried to upgrade my
> setuptools using macports (sudo port install py26-setuptools) and got the
> following error:
>
>> --->  Computing dependencies for py26-setuptools
>> --->  Activating py26-setuptools @0.6c11_1
>> Error: Target org.macports.activate returned: Image error: /opt/local/Library/Frameworks/Python.framework/Versions/2.6/bin/easy_install already exists and does not belong to a registered port.  Unable to activate port py26-setuptools. Use 'port -f activate py26-setuptools' to force the activation.
>> Log for py26-setuptools is at: /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_ports_python_py26-setuptools/main.log
>> Error: Status 1 encountered during processing.
>> To report a bug, see <http://guide.macports.org/#project.tickets>
>>
>> When I tried to force activate it as suggested I got this:
>
> --->  Activating py26-setuptools
>> Warning: File /opt/local/Library/Frameworks/Python.framework/Versions/2.6/bin/easy_install already exists.  Moving to: /opt/local/Library/Frameworks/Python.framework/Versions/2.6/bin/easy_install.mp_1299764382.
>> Warning: File /opt/local/Library/Frameworks/Python.framework/Versions/2.6/bin/easy_install-2.6 already exists.  Moving to: /opt/local/Library/Frameworks/Python.framework/Versions/2.6/bin/easy_install-2.6.mp_1299764382.
>> Error: port activate failed: can't create directory "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/setuptools-0.6c11-py2.6.egg-info": file already exists
>>
>> 3) Next I got the libyaml source and built it and installed it. After that
> I tried to install pyyaml again. This time it didnt complain about libyaml
> not being found, however it still gave me an error. The entire output is
> quite long, but I got lots of warning about "differ in signedness" along
> with the following error:
>
> ext/_yaml.c:17348: warning: pointer targets in passing argument 3 of ‘yaml_mapping_start_event_initialize’ differ in signedness
>> ld warning: in /usr/local/lib/libyaml.dylib, file is not of required architecture
>> zip_safe flag not set; analyzing archive contents...
>> No eggs found in /tmp/easy_install-DpLGbQ/PyYAML-3.09/egg-dist-tmp-NONW0s (setup script problem?)
>>
>> Those are the last few lines of the output. I don't know how to solve this
> problem, as I am not familiar with python's setuptools.
> 4) Finally, I got the pyyaml-3.09 source and installed as per the
> instructions. It installed without problems,
>
> running install
>> running build
>> running build_py
>> running build_ext
>> running install_lib
>> running install_egg_info
>> Removing /opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/PyYAML-3.09-py2.6.egg-info
>>
>> Writing
>> /opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/PyYAML-3.09-py2.6.egg-info
>
>
>
>
> However, as the next step in the ROS install, I ran this command as
> described in the website"
> http://packages.ros.org/cgi-bin/gen_rosinstall.py?rosdistro=diamondback&variant=ros-full&overlay=no<http://packages.ros.org/cgi-bin/gen_rosinstall.py?rosdistro=diamondback&variant=ros-full&overlay=no>"]
> and I got the following error:
>
> Traceback (most recent call last):
>>   File "/usr/local/bin/rosinstall", line 5, in <module>
>>     pkg_resources.run_script('rosinstall==0.5.16', 'rosinstall')
>>   File "/System/Library/Frameworks/Python.framework/Versions/2.5/Extras/lib/python/pkg_resources.py", line 442, in run_script
>>     self.require(requires)[0].run_script(script_name, ns)
>>   File "/System/Library/Frameworks/Python.framework/Versions/2.5/Extras/lib/python/pkg_resources.py", line 1167, in run_script
>>     exec script_code in namespace, namespace
>>   File "/usr/local/bin/rosinstall", line 23, in <module>
>>
>> ImportError: No module named yaml
>>
>> which seems to indicate that pyyaml (or yaml?) is still not installed (or
> its installed in a place where this command is not looking). Right now, I am
> out of options, I don't know what else to try. I have issued this problem as
> a new ticket on pyyaml.org website (http://pyyaml.org/ticket/186), however
> I have not received any reply.
>
> Any help on this is greatly appreciated.
>
> Thanks,
> S.
>
>
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