Custom Query (121 matches)

Reported by nick.demyanchuk@…, 2 years ago.

Pyyaml improperly dumps sequence block. For example:

>>> from yaml import load, dump

>>> cfg = """key:
              - value
              - another one
              - foo
          """

>>> yaml_dict = load(cfg)

>>> print yaml_dict
{'key': ['value', 'another one', 'foo']}

>>> new_cfg = dump(yaml_dict)

>>> print new_cfg
key: [value, another one, foo]

Reported by sudarshan85@…, 2 years ago.

Hello, I am trying to install Pyyaml (as part of robot operating system install), however I run into the following error after trying sudo easy_install -U pyyaml:

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?)

These are the things that I tried:

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 this website [rosinstall ~/ros " 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.

Any help on this is greatly appreciated.

Thanks,

S.

Reported by ubuntu@…, 2 years ago.

In the next Ubuntu release we will be using gcc4.6. pyyaml fails to build with it. The failure is:

Function `PyCObject_FromVoidPtr' implicitly converted to pointer at ext/_yaml.c:20301 Function `PyCObject_FromVoidPtr' implicitly converted to pointer at ext/_yaml.c:20301

The full build log is available at:

 https://launchpadlibrarian.net/69956046/buildlog_ubuntu-natty-amd64.pyyaml_3.09-5ubuntu2_FAILEDTOBUILD.txt.gz