I have a Redhat 6 box which originally had python 2.6 installed on it (invoked by /usr/bin/python). A few days ago I installed 2.7.10 (invoked by /usr/local/bin/python or simply python).
Earlier today I installed pip using sudo easy_install pip. The result of whereis pip is pip: /usr/bin/pip2.6 /usr/bin/pip
Then I wanted to install the pandas package by running sudo pip install pandas. It reported success but import pandas produces an error for both versions of python:
myPrompt 733] python
Python 2.7.10 (default, Jul 16 2015, 14:41:11)
[GCC 4.4.7 20120313 (Red Hat 4.4.7-11)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import pandas
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ImportError: No module named pandas
>>> exit()
myPrompt 734] /usr/bin/python
Python 2.6.6 (r266:84292, Nov 21 2013, 10:50:32)
[GCC 4.4.7 20120313 (Red Hat 4.4.7-4)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import pandas
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ImportError: No module named pandas
>>> exit()
myPrompt 735] pip install pandas
Traceback (most recent call last):
File "/usr/bin/pip", line 5, in <module>
from pkg_resources import load_entry_point
File "/usr/lib/python2.6/site-packages/pkg_resources.py", line 2655, in <module>
working_set.require(__requires__)
File "/usr/lib/python2.6/site-packages/pkg_resources.py", line 648, in require
needed = self.resolve(parse_requirements(requirements))
File "/usr/lib/python2.6/site-packages/pkg_resources.py", line 546, in resolve
raise DistributionNotFound(req)
pkg_resources.DistributionNotFound: pip==7.1.0
myPrompt 736] sudo pip install pandas
Enter PASSCODE:
Requirement already satisfied (use --upgrade to upgrade): pandas in /usr/lib64/python2.6/site-packages
Requirement already satisfied (use --upgrade to upgrade): python-dateutil in /usr/lib/python2.6/site-packages (from pandas)
Requirement already satisfied (use --upgrade to upgrade): pytz>=2011k in /usr/lib/python2.6/site-packages (from pandas)
Requirement already satisfied (use --upgrade to upgrade): numpy>=1.7.0 in /usr/lib64/python2.6/site-packages (from pandas)
Requirement already satisfied (use --upgrade to upgrade): six>=1.5 in /usr/lib/python2.6/site-packages (from python-dateutil->pandas)
So there is some sort of confusion with pip configuration and how packages get installed. How can I untangle this? Do I need to reinstall pip?
Ultimately, I don't care about python 2.6 and only want to work with 2.7
Thx
Looks like the reason was that I installed the packages as root. Doing
sudo chmod -R ugo+rX /usr/local/lib/python2.7/site-packages
fixed the problem
For reference, this can happen when you have multiple Python installations, for example via brew. In that case remove one:
brew remove python --force
This one fixed for me.
This case can be fixed using the steps provided in the following answer: Easy_install and pip broke: pkg_resources.DistributionNotFound: distribute==0.6.36
It simply replaces the current pip install (which refers to the new/wrong python environment) with a fresh/correct one.
Related
Python 2.7.9 (client requirement), Windows 10
'pip install mock' says it worked
But no mock!
Other modules install and run fine (e.g. coverage) so I'm sure my paths are setup properly
Does mock not install/run on 2.7.9? Having trouble finding requirements for this module.
>pip list
coverage (5.3)
pip (1.5.6)
setuptools (7.0)
UNKNOWN (4.0.2)
>pip install mock
Downloading/unpacking mock
Running setup.py (path:c:\users\user\appdata\local\temp\pip_build_user\mock\setup.py) egg_info for package mock
Installing collected packages: mock
Running setup.py install for mock
Successfully installed mock
Cleaning up...
>pip list
coverage (5.3)
pip (1.5.6)
setuptools (7.0)
UNKNOWN (4.0.2)
>python
Python 2.7.9 (default, Dec 10 2014, 12:24:55) [MSC v.1500 32 bit (Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import mock
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ImportError: No module named mock
Thanks!
you're using a very old version of pip / setuptools which doesn't understand mock's wheels or python_requires or packaging metadata
I'd suggest upgrading pip to at least version 9.0.3 (where python_requires was introduced)
I'd suggest upgrading setuptools to at least version 30.3 (where declarative metadata (setup.cfg) was introduced)
I'm writing a script in python to update some YAML config files containing jinja2. I found this answer showing how to do it using ruamel.yaml and ruamel.yaml.jinja2 packages and it works absolutely fine on windows10 using this configuration:
$ python -V
Python 2.7.5
$ python -m pip list
[...]
ruamel.ordereddict 0.4.13
ruamel.yaml 0.15.94
ruamel.yaml.jinja2 0.2.2
[...]
and this code:
from ruamel.yaml import YAML
yamlLoader = YAML(typ='jinja2')
But when I try to use it on a CentOS virtual machine, which is the target environment for this script, I get this error:
File "/opt/salt/mig/cnamts_migrate.py", line 17, in <module>
yamlLoader = YAML(typ='jinja2')
File "/usr/lib64/python2.7/site-packages/ruamel/yaml/main.py", line 138, in __init__
'typ "{}"not recognised (need to install plug-in?)'.format(self.typ)
NotImplementedError: typ "jinja2"not recognised (need to install plug-in?)
I can't find any difference in neither Python configuration nor packages' version.
On CentOS VM:
$ python -V
Python 2.7.5
$ pip list
Package Version
---------------------------- -----------
pip 19.1
ruamel.ordereddict 0.4.13
ruamel.yaml 0.15.94
ruamel.yaml.jinja2 0.2.2
setuptools 41.0.1
This path
/usr/lib64/python2.7/site-packages/ruamel/yaml/main.py
in the error message gives me the impression that you are using a system wide Python installation. You should (IMHO even in a VM) use python virtualenv for any utility (and preferaby one per non-related utility). You don't show the output of pip for your CentOS machine, which is way more interesting than the one on your Windows box.
$ more /etc/centos-release
CentOS Linux release 7.3.1611 (Core)
$ /opt/python/3.7/bin/python -m venv /tmp/so-55900745
$ source /tmp/so-55900745/bin/activate
(so-55900745) $ pip install ruamel.yaml.jinja2
Collecting ruamel.yaml.jinja2
Downloading https://files.pythonhosted.org/packages/4f/b4/9676d4fa53d921f98f40dcda2ecfdb9fba2b68fbdccec3d9d4d2c87d96a7/ruamel.yaml.jinja2-0.2.2-py2.py3-none-any.whl
Collecting ruamel.yaml>=0.15.10 (from ruamel.yaml.jinja2)
Downloading https://files.pythonhosted.org/packages/bb/e3/8c06f90dab796bd5baf5da2482cf919bab3145389196814ec3180d4c7bd5/ruamel.yaml-0.15.94-cp37-cp37m-manylinux1_x86_64.whl (647kB)
100% |████████████████████████████████| 655kB 9.3MB/s
Installing collected packages: ruamel.yaml, ruamel.yaml.jinja2
Successfully installed ruamel.yaml-0.15.94 ruamel.yaml.jinja2-0.2.2
(so-55900745) $ pip list
Package Version
------------------ -------
pip 19.1
ruamel.yaml 0.15.94
ruamel.yaml.jinja2 0.2.2
setuptools 40.8.0
(so-55900745) $ python
Python 3.7.3 (default, Apr 3 2019, 11:33:06)
[GCC 4.8.5 20150623 (Red Hat 4.8.5-11)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> from ruamel.yaml import YAML
>>> yamlLoader = YAML(typ='jinja2')
>>> exit()
(so-55900745) $ deactivate
$ rm -rf /tmp/so-55900745/
$ virtualenv -p /opt/python/2.7/bin/python /tmp/so-55900745
Running virtualenv with interpreter /opt/python/2.7/bin/python
New python executable in /tmp/so-55900745/bin/python
Installing setuptools, pip, wheel...
done.
$ source /tmp/so-55900745/bin/activate
(so-55900745) $ pip install ruamel.yaml.jinja2
DEPRECATION: Python 2.7 will reach the end of its life on January 1st, 2020. Please upgrade your Python as Python 2.7 won't be maintained after that date. A future version of pip will drop support for Python 2.7.
Collecting ruamel.yaml.jinja2
Using cached https://files.pythonhosted.org/packages/4f/b4/9676d4fa53d921f98f40dcda2ecfdb9fba2b68fbdccec3d9d4d2c87d96a7/ruamel.yaml.jinja2-0.2.2-py2.py3-none-any.whl
Collecting ruamel.yaml>=0.15.10 (from ruamel.yaml.jinja2)
Downloading https://files.pythonhosted.org/packages/a2/59/e8cb144511e47e068efdb71a85f35d00b32fc5f05a9e9a17df265ec252b5/ruamel.yaml-0.15.94-cp27-cp27mu-manylinux1_x86_64.whl (600kB)
|████████████████████████████████| 604kB 2.0MB/s
Collecting ruamel.ordereddict; platform_python_implementation == "CPython" and python_version <= "2.7" (from ruamel.yaml>=0.15.10->ruamel.yaml.jinja2)
Downloading https://files.pythonhosted.org/packages/f3/2c/fa6d75dc459b371ed3b88fdbf8042785ce1655073c884fd97bdbb9f48e01/ruamel.ordereddict-0.4.13-cp27-cp27mu-manylinux1_x86_64.whl (99kB)
|████████████████████████████████| 102kB 12.7MB/s
Installing collected packages: ruamel.ordereddict, ruamel.yaml, ruamel.yaml.jinja2
Successfully installed ruamel.ordereddict-0.4.13 ruamel.yaml-0.15.94 ruamel.yaml.jinja2-0.2.2
(so-55900745) $ python
Python 2.7.15 (default, Aug 10 2018, 11:41:46)
[GCC 4.8.5 20150623 (Red Hat 4.8.5-11)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> from ruamel.yaml import YAML
>>> yamlLoader = YAML(typ='jinja2')
>>> exit()
(so-55900745) $ deactivate
I ran into the same error message. but with python3.6.
The fix for me was to pip instead of easy_install.
Here's the easy_install related output:
(env) $ easy_install -q ruamel.yaml.jinja2
(env) $ easy_install -q ruamel.yaml
(env) $ python
Python 3.6.7 (default, Oct 22 2018, 11:32:17)
[GCC 8.2.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> from ruamel.yaml import YAML
>>> yamlLoader = YAML(typ='jinja2')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "REDACTED/env/lib/python3.6/site-packages/ruamel.yaml-0.15.96-py3.6-linux-x86_64.egg/ruamel/yaml/main.py", line 138, in __init__
'typ "{}"not recognised (need to install plug-in?)'.format(self.typ)
NotImplementedError: typ "jinja2"not recognised (need to install plug-in?)
Here's the same thing installing with pip:
(env) $ pip -q install ruamel.yaml.jinja2
(env) $ pip -q install ruamel.yaml
(env) $ python
Python 3.6.7 (default, Oct 22 2018, 11:32:17)
[GCC 8.2.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> from ruamel.yaml import YAML
>>> yamlLoader = YAML(typ='jinja2')
>>> print("¯\_(ツ)_/¯")
¯\_(ツ)_/¯
If you are using a setup.py in your project, check out Can I use `pip` instead of `easy_install` for `python setup.py install` dependency resolution?
I'm trying to install h5py package via pip for python 2.7, I can't use sudo and I have python 3.2 installed too.
Here is my attemp:
I have installed pip:
curl -O https://bootstrap.pypa.io/get-pip.py
python2.7 get-pip.py --user
then I installed wheel
~/.local/bin/pip2.7 install --user wheel
Collecting wheel
/home/myuser/.local/lib/python2.7/site-packages/pip/_vendor/requests/packages/urllib3/util/ssl_.py:315: SNIMissingWarning: An HTTPS request has been made, but the SNI (Subject Name Indication) extension to TLS is not available on this platform. This may cause the server to present an incorrect TLS certificate, which can cause validation failures. For more information, see https://urllib3.readthedocs.org/en/latest/security.html#snimissingwarning.
SNIMissingWarning
/home/myuser/.local/lib/python2.7/site-packages/pip/_vendor/requests/packages/urllib3/util/ssl_.py:120: InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. For more information, see https://urllib3.readthedocs.org/en/latest/security.html#insecureplatformwarning.
InsecurePlatformWarning
Using cached wheel-0.29.0-py2.py3-none-any.whl
Installing collected packages: wheel
Successfully installed wheel-0.29.0
Then installed h5py, seems it failed.
~/.local/bin/pip2.7 install --user h5py
Collecting h5py
Using cached h5py-2.5.0.tar.gz
/usr/lib/python2.7/dist-packages/setuptools/command/install_scripts.py:3: UserWarning: Module pip was already imported from /home/myuser/.local/lib/python2.7/site-packages/pip/__init__.pyc, but /usr/lib/python2.7/dist-packages is being added to sys.path
from pkg_resources import Distribution, PathMetadata, ensure_directory
Requirement already satisfied (use --upgrade to upgrade): numpy>=1.6.1 in /usr/lib/python2.7/dist-packages (from h5py)
Requirement already satisfied (use --upgrade to upgrade): Cython>=0.17 in /home/myuser/.local/lib/python2.7/site-packages (from h5py)
Requirement already satisfied (use --upgrade to upgrade): six in /home/myuser/.local/lib/python2.7/site-packages (from h5py)
Building wheels for collected packages: h5py
Running setup.py bdist_wheel for h5py ... error
Complete output from command /usr/bin/python2.7 -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-7KTR1Y/h5py/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" bdist_wheel -d /tmp/tmpE1KVSupip-wheel- --python-tag cp27:
usage: -c [global_opts] cmd1 [cmd1_opts] [cmd2 [cmd2_opts] ...]
or: -c --help [cmd1 cmd2 ...]
or: -c --help-commands
or: -c cmd --help
error: invalid command 'bdist_wheel'
----------------------------------------
Failed building wheel for h5py
Running setup.py clean for h5py
Failed to build h5py
Installing collected packages: h5py
Running setup.py install for h5py ... done
Successfully installed h5py-2.5.0
run python via python2.7
Python 2.7.3 (default, Feb 27 2014, 19:58:35)
[GCC 4.6.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import h5py
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/home/myuser/.local/lib/python2.7/site-packages/h5py/__init__.py", line 23, in <module>
from . import _conv
File "h5py/h5r.pxd", line 21, in init h5py._conv (/tmp/pip-build-7KTR1Y/h5py/h5py/_conv.c:7356)
File "h5py/_objects.pxd", line 12, in init h5py.h5r (/tmp/pip-build-7KTR1Y/h5py/h5py/h5r.c:2941)
File "h5py/_objects.pyx", line 1, in init h5py._objects (/tmp/pip-build-7KTR1Y/h5py/h5py/_objects.c:7226)
ImportError: /home/myuser/.local/lib/python2.7/site-packages/h5py/defs.so: undefined symbol: H5Oexists_by_name
What I'm doing wrong?
Update:
~/.local/bin/pip2.7 show h5py
---
Metadata-Version: 1.1
Name: h5py
Version: 2.5.0
Summary: Read and write HDF5 files from Python
Home-page: http://www.h5py.org
Author: Andrew Collette
Author-email: andrew dot collette at gmail dot com
License: UNKNOWN
Location: /home/myuser/.local/lib/python2.7/site-packages
Requires: numpy, Cython, six
My OS is Ubuntu 12.04.1 LTS.
So there's a few things happening here:
Missing SSL certificate problems (see the urllib3 link)
setuptools not finding wheel, meaning a wheel isn't built, so pip calls python setup.py install directly
h5py is trying to use a function in HDF5 which does not exist in the version of HDF5 that's on your system.
1 and 2 are worth fixing (as they may be symptoms of other problems with the system), but 3 is the reason h5py isn't working for you.
h5py is trying to access H5Oexists_by_name. According to https://www.hdfgroup.org/HDF5/doc/RM/RM_H5O.html#Object-ExistsByName, this first appeared in version 1.8.5 of HDF5. According to http://packages.ubuntu.com/source/precise/hdf5, the version of HDF5 on your system is 1.8.4 (but you need to check this!). Somehow h5py thinks the HDF5 library on you system is 1.8.5 or higher (see https://github.com/h5py/h5py/blob/4ee8f89b6dc658fdea5dc62d0f29058121928cfe/h5py/h5o.pyx#L172)
It looks like someone else has run into a similar problem, and filed https://bugs.launchpad.net/ubuntu/+source/hdf5/+bug/1418220. You probably want to inform them of your problem, so that they can produce a bug fix.
I have installed eventlet library in python using : pip install eventlet. But when I tried to import eventlet this error occured:
$python
Python 2.7.10 (default, Oct 23 2015, 18:05:06)
[GCC 4.2.1 Compatible Apple LLVM 7.0.0 (clang-700.0.59.5)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import eventlet
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ImportError: No module named eventlet
I tried to install it again but I got this :
$pip install eventlet
Requirement already satisfied (use --upgrade to upgrade): eventlet in /Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/eventlet-0.18.1-py3.5.egg
Requirement already satisfied (use --upgrade to upgrade): greenlet>=0.3 in /Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/greenlet-0.4.9-py3.5-macosx-10.6-intel.egg (from eventlet)
How to rectify this error?
P.S : I am using Python 2.7
This question is not specific to Eventlet, it's just about managing multiple versions of Python on OSX.
Your pip command installed eventlet into /Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5, see version.
It means you actually have two Python versions installed: 2.7 and 3.5 and pip works with 3.5.
Your options:
(recommended) use separate virtualenv [1] for every project, explicitly specify python version when creating virtualenv using virtualenv --python=python2.7 /path/to/new/venv
run python3 and use eventlet in latest Python
run pip2 install eventlet
symlink pip to pip2 ln -snf $(which pip2) $(which pip)
[1] http://docs.python-guide.org/en/latest/dev/virtualenvs/
You may also use
$py -2 -m pip install eventlet
It worked for me in Windows 10.
$pip install eventlet
This worked for me in windows10
Can not import libxml2 and libxslt in Python 2.7 and CentOS 7.
But system says that these packages are installed:
Package libxml2-2.9.1-5.el7_1.2.x86_64 already installed and latest version
Package libxml2-devel-2.9.1-5.el7_1.2.x86_64 already installed and latest version
Package libxslt-1.1.28-5.el7.x86_64 already installed and latest version
Package libxslt-devel-1.1.28-5.el7.x86_64 already installed and latest version
But can not import in Python2.7
Python 2.7.5 (default, Jun 24 2015, 00:41:19)
[GCC 4.8.3 20140911 (Red Hat 4.8.3-9)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import libxml2
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ImportError: No module named libxml2
>>> import libxslt
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ImportError: No module named libxslt
>>>
libxml2 install step
yum groupinstall "Development Tools"
yum install python-devel.x86_64
rpmbuild -ba /usr/src/redhat/SPECS/libxml2.spec (this might not be required.)
##go to RPMS/x86_64/
rpm -Uvh libxml2-python-2.7.8-1.x86_64.rpm --nodeps
===================================================================
libxslt install step
wget http://xmlsoft.org/sources/libxslt-1.1.28.tar.gz
cd libxslt-1.1.28
./configure --with-python=/usr/bin/python2.7
make
make install
========================================