When I try to upgrade my matplotlib using pip, it outputs:
Downloading/unpacking matplotlib from https://pypi.python.org/packages/source/m/matplotlib/matplotlib-1.4.0.tar.gz#md5=1daf7f2123d94745feac1a30b210940c
Downloading matplotlib-1.4.0.tar.gz (51.2MB): 51.2MB downloaded
Running setup.py (path:/tmp/pip_build_root/matplotlib/setup.py) egg_info for package matplotlib
============================================================================
Edit setup.cfg to change the build options
BUILDING MATPLOTLIB
matplotlib: yes [1.4.0]
python: yes [2.7.6 (default, Mar 22 2014, 22:59:38) [GCC
4.8.2]]
platform: yes [linux2]
REQUIRED DEPENDENCIES AND EXTENSIONS
numpy: yes [version 1.8.2]
six: yes [using six version 1.7.3]
dateutil: yes [using dateutil version 2.2]
tornado: yes [using tornado version 4.0.1]
pyparsing: yes [using pyparsing version 2.0.2]
pycxx: yes [Couldn't import. Using local copy.]
libagg: yes [pkg-config information for 'libagg' could not
be found. Using local copy.]
Traceback (most recent call last):
File "<string>", line 17, in <module>
File "/tmp/pip_build_root/matplotlib/setup.py", line 154, in <module>
result = package.check()
File "setupext.py", line 940, in check
if 'No such file or directory\ngrep:' in version:
TypeError: argument of type 'NoneType' is not iterable
Complete output from command python setup.py egg_info:
============================================================================
Edit setup.cfg to change the build options
BUILDING MATPLOTLIB
matplotlib: yes [1.4.0]
python: yes [2.7.6 (default, Mar 22 2014, 22:59:38) [GCC
4.8.2]]
platform: yes [linux2]
REQUIRED DEPENDENCIES AND EXTENSIONS
numpy: yes [version 1.8.2]
six: yes [using six version 1.7.3]
dateutil: yes [using dateutil version 2.2]
tornado: yes [using tornado version 4.0.1]
pyparsing: yes [using pyparsing version 2.0.2]
pycxx: yes [Couldn't import. Using local copy.]
libagg: yes [pkg-config information for 'libagg' could not
be found. Using local copy.]
Traceback (most recent call last):
File "<string>", line 17, in <module>
File "/tmp/pip_build_root/matplotlib/setup.py", line 154, in <module>
result = package.check()
File "setupext.py", line 940, in check
if 'No such file or directory\ngrep:' in version:
TypeError: argument of type 'NoneType' is not iterable
----------------------------------------
Cleaning up...
Command python setup.py egg_info failed with error code 1 in /tmp/pip_build_root/matplotlib
Storing debug log for failure in /home/username/.pip/pip.log
In the tail of the log it says:
Exception information:
Traceback (most recent call last):
File "/usr/local/lib/python2.7/dist-packages/pip-1.5.6-py2.7.egg/pip/basecommand.py", line 122, in main
status = self.run(options, args)
File "/usr/local/lib/python2.7/dist-packages/pip-1.5.6-py2.7.egg/pip/commands/install.py", line 278, in run
requirement_set.prepare_files(finder, force_root_egg_info=self.bundle, bundle=self.bundle)
File "/usr/local/lib/python2.7/dist-packages/pip-1.5.6-py2.7.egg/pip/req.py", line 1229, in prepare_files
req_to_install.run_egg_info()
File "/usr/local/lib/python2.7/dist-packages/pip-1.5.6-py2.7.egg/pip/req.py", line 325, in run_egg_info
command_desc='python setup.py egg_info')
File "/usr/local/lib/python2.7/dist-packages/pip-1.5.6-py2.7.egg/pip/util.py", line 697, in call_subprocess
% (command_desc, proc.returncode, cwd))
InstallationError: Command python setup.py egg_info failed with error code 1 in /tmp/pip_build_root/matplotlib
Why did it fail?
Many thanks!
This is a known bug that has been fixed (https://github.com/matplotlib/matplotlib/pull/3414) on master.
The bug is in the handling of searching for a freetype installation. If you install the Linux package freetype-dev, you will avoid this bug and be able to compile matplotlib.
sudo apt-get install libfreetype6-dev
On Ubuntu 14 server, you also need to install libxft-dev
sudo apt-get install libfreetype6-dev libxft-dev
I had the same issues trying to install matplotlib on Python 3 using pip3, and it seems that this problem is related to a bare-bones installation of Python 3, and doing a:
sudo apt-get build-dep matplotlib
followed by
sudo pip3 install matplotlib
is probably a better solution than selectively installing only the libraries related to matplotlib.
Since mac doesn't have apt-get you, on OSX you may need to do:
brew install freetype
then you can run:
pip install matplotlib
Found this page while looking answer for fedora 24.
RPM solution is:
dnf install freetype-devel
If you re running Ubuntu server 14.04 u should add this font dependency
sudo apt-get install libxft-dev
Source
I was trying too update directly using sudo pip but changes are not saved in last. So i first use update cmd in terminal:
sudo apt-get update
then i used sudo install:
sudo apt-get install libffi-dev
Finally its installed by doing this method.
For those on Fedora 25 hitting this thread, I needed these two packages to make it work:
sudo dnf install freetype-devel gcc-c++
This worked for me:
python -m pip install -U pip setuptools
python -m pip install matplotlib
For more details, follow : https://matplotlib.org/2.0.0/users/installing.html
Related
A program I am trying to install requires the installation of PyQt5 5.15.0 , which gives me this error. The odd thing is that the installation works fine for the latest version of PyQt5 (5.15.2), but this program requires 5.15.0 specifically.
Command Output:
Collecting PyQt5==5.15.0
Using cached PyQt5-5.15.0.tar.gz (3.3 MB)
Installing build dependencies ... done
Getting requirements to build wheel ... done
Preparing wheel metadata ... error
ERROR: Command errored out with exit status 1:
command: 'c:\users\mshal\appdata\local\programs\python\python39\python.exe' 'C:\Users\mshal\AppData\Roaming\Python\Python39\site-packages\pip\_vendor\pep517\_in_process.py' prepare_metadata_for_build_wheel 'C:\Users\mshal\AppData\Local\Temp\tmp41s11ev6'
cwd: C:\Users\mshal\AppData\Local\Temp\pip-install-sfw90hvc\pyqt5_e2cc46859b554da7b84798abae5378ba
Complete output (31 lines):
Traceback (most recent call last):
File "C:\Users\mshal\AppData\Roaming\Python\Python39\site-packages\pip\_vendor\pep517\_in_process.py", line 126, in prepare_metadata_for_build_wheel
hook = backend.prepare_metadata_for_build_wheel
AttributeError: module 'sipbuild.api' has no attribute 'prepare_metadata_for_build_wheel'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "C:\Users\mshal\AppData\Roaming\Python\Python39\site-packages\pip\_vendor\pep517\_in_process.py", line 280, in <module>
main()
File "C:\Users\mshal\AppData\Roaming\Python\Python39\site-packages\pip\_vendor\pep517\_in_process.py", line 263, in main
json_out['return_val'] = hook(**hook_input['kwargs'])
File "C:\Users\mshal\AppData\Roaming\Python\Python39\site-packages\pip\_vendor\pep517\_in_process.py", line 130, in prepare_metadata_for_build_wheel
return _get_wheel_metadata_from_wheel(backend, metadata_directory,
File "C:\Users\mshal\AppData\Roaming\Python\Python39\site-packages\pip\_vendor\pep517\_in_process.py", line 159, in _get_wheel_metadata_from_wheel
whl_basename = backend.build_wheel(metadata_directory, config_settings)
File "C:\Users\mshal\AppData\Local\Temp\pip-build-env-nnx_yu09\overlay\Lib\site-packages\sipbuild\api.py", line 51, in build_wheel
project = AbstractProject.bootstrap('pep517')
File "C:\Users\mshal\AppData\Local\Temp\pip-build-env-nnx_yu09\overlay\Lib\site-packages\sipbuild\abstract_project.py", line 83, in bootstrap
project.setup(pyproject, tool, tool_description)
File "C:\Users\mshal\AppData\Local\Temp\pip-build-env-nnx_yu09\overlay\Lib\site-packages\sipbuild\project.py", line 479, in setup
self.apply_user_defaults(tool)
File "project.py", line 62, in apply_user_defaults
super().apply_user_defaults(tool)
File "C:\Users\mshal\AppData\Local\Temp\pip-build-env-nnx_yu09\overlay\Lib\site-packages\pyqtbuild\project.py", line 79, in apply_user_defaults
super().apply_user_defaults(tool)
File "C:\Users\mshal\AppData\Local\Temp\pip-build-env-nnx_yu09\overlay\Lib\site-packages\sipbuild\project.py", line 225, in apply_user_defaults
self.builder.apply_user_defaults(tool)
File "C:\Users\mshal\AppData\Local\Temp\pip-build-env-nnx_yu09\overlay\Lib\site-packages\pyqtbuild\builder.py", line 66, in apply_user_defaults
raise PyProjectOptionException('qmake',
sipbuild.pyproject.PyProjectOptionException
----------------------------------------
ERROR: Command errored out with exit status 1: 'c:\users\mshal\appdata\local\programs\python\python39\python.exe' 'C:\Users\mshal\AppData\Roaming\Python\Python39\site-packages\pip\_vendor\pep517\_in_process.py' prepare_metadata_for_build_wheel 'C:\Users\mshal\AppData\Local\Temp\tmp41s11ev6' Check the logs for full command output.
I am on the latest version of pip. Any ideas on the root cause of this issue?
What helped me is upgrading pip from 20.2.3 to the latest one (in my case 21.1.1)
For Mac/Homebrew users.
The answer by #the-x is leading in the right direction. On a Mac with QT5 installed via Homebrew the qmake binary just needs to be added to the path. This can be achieved through
export PATH="/opt/homebrew/opt/qt5/bin:$PATH"
(of course depending on where the homebrew files are installed)
Running on arm with python3.6 (ubuntu18 on nvidia Xavier):
sudo apt install qt5-default
For MacOS users.
I am on Apple M1 silicon using Python 3.9.8. What worked for me was #Apaul's comment in the original question section. Install pyqt5-sip prior to pyqt5.
I also have an Intel Mac and on that machine, I do not need to do this.
Checking the binaries that PyQt5 provides in pypi for version 5.15.0 I see that it does not provide the binaries for python3.9 in windows, so pip is trying to compile using the source code which is complicated and can generate several dependency problems (for example you must have Qt 5.15 installed, etc). So my recommendation is to install a more updated version of PyQt5, for example 5.15.2 since if it provides the binaries for python3.9 on windows, in addition to being a wrapper of an LTS version of Qt then it will have solved several bugs.
python -m pip install PyQt5==5.15.2
Another solution is to use python3.8 instead of python3.9 so that you can install pyqt5 5.15.0 from pypi without problems.
Upgrading your pip enables you to install PyQt5. Personally, I had the same issue while installing PyQt6 and I upgraded my pip, and everything installed perfectly. I think both python and pip versions play an important role in installing PyQt so make sure you have later versions.
This is the command I used in Linux:
pip install --upgrade pip
Combining several answers on this question: On an Apple M1 Pro Macbook with macOS Ventura 13.0.1, with Homebrew 3.6.17 and python 3.11.0 the following commands fixed it for me (no sudo):
brew install qt5
export PATH="/opt/homebrew/opt/qt5/bin:$PATH"
python3 -m ensurepip --default-pip
pip3 install pyqt5-sip
pip3 install pyqt5 --config-settings --confirm-license= --verbose
That last step calls qmake to compile all of Qt on your M1 and takes many minutes to complete, be patient and let it finish.
Since qt5-default was not available, I installed qt5-default's dependencies
sudo apt-get install qtbase5-dev qtchooser qt5-qmake qtbase5-dev-tools
after that I installed pyqt5 via apt-get first and afterwards via pip
sudo apt-get install pyqt5-dev
pip install pyqt5
now wheel seems to work
side-note:
I am not sure if sudo apt-get install pyqt5-dev is even necessary
The error message thrown here is misleading - it's not an issue with a sipbuild.api attribute. Indeed, in this case program qmake is missing, see last line of the Python traceback. Have a look if it's installed on your system and add it to your PATH variable. Otherwise, install it. On Linux this would be done with
sudo apt-get install qt5-qmake
I had this problem on my M1 Mac using Python 3.9.12 when I was trying to install a library: pip install pixellib.
The first thing I did was: pip install pixellib --verbose to see the whole log, and there I noticed that PyQt5 was waiting for an input. So then I found someone else with that issue, and used pip install pyqt5 --config-settings --confirm-license= --verbose which took some time to compile, but worked!
I could not get any of the above solutions to work but I managed to get it working using python3.9, PyQt5=5.15.2, pip=22.0.2 and sip=6.5.0 by using sudo apt-get install PyQt5. If you need it in a virtual environment, you can manually copy the PyQt5 folder from your default /usr/lib/python3/dist-packages to the site-packages folder in your virtual environment.
To all those that are struggling with Apple M1 installation, here is a working solution, specifically addressing the problem of installing the pixellib library that depends on PyQt5 but you can apply it equally to other libs:
PyQt5 is not supported on Apple M1, it needs qt6: https://www.reddit.com/r/learnpython/comments/o4w1ut/comment/h2jele3/?utm_source=share&utm_medium=web2x&context=3 , https://www.qt.io/product/qt6
this means you need to install PyQt6: python3 -m pip install PyQt6
go to the lib you need, in my case pixellib: https://pypi.org/project/pixellib/#files and
download the wheel file
get the wheel tool: pip install wheel
unpack the wheel wheel unpack pixellib-0.7.1-py3-none-any.whl
Change its dependency of PyQt5 to PyQt6
edit pixellib-0.7.1/pixellib-0.7.1.dist-info/METADATA
pyQt5 => pyQt6
pack it back wheel pack pixellib-0.7.1
install it: pip install pixellib-0.7.1-py3-none-any.whl
test in python: `
# should work
import pixellib
P.S. thanks to Terra and ChaOS for supporting work on the project underlying this report.
I finally managed to make it works on M1/M2 Macbook Pro.
None of these answers worked for me, so I looked at brew to install pyqt.
The following command will install pyqt5 via brew:
brew install pyqt#5
Then it just worked.
This can be resolved by switching to an environment with Python >= 3.8
Trying to follow a Django tutorial but I cannot install mysqlclient.
The tutorial claims that I can do so with the following command:
pip install mysqlclient
but this generates this error:
Collecting mysqlclient Using cached mysqlclient-1.3.12.tar.gz
Complete output from command python setup.py egg_info:
/bin/sh: 1: mysql_config: not found
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "/tmp/pip-build-rrolctwh/mysqlclient/setup.py", line 17, in <module>
metadata, options = get_config()
File "/tmp/pip-build-rrolctwh/mysqlclient/setup_posix.py", line 44, in get_config
libs = mysql_config("libs_r")
File "/tmp/pip-build-rrolctwh/mysqlclient/setup_posix.py", line 26, in mysql_config
raise EnvironmentError("%s not found" % (mysql_config.path,))
OSError: mysql_config not found
---------------------------------------- Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-rrolctwh/mysqlclient/
I have the most up-to-date pip and virtualenv installed.
I would like to be able to install mysqlclient so that I may continue with the tutorial.
You should also install the mysql and python development headers and libraries:
https://github.com/PyMySQL/mysqlclient-python#prerequisites
I was facing the same problems, but following the instructions in the Official mysqlclient documentation fixed it for me
but just to clarify I was running python 3.5 from a virtual environment
and after installing the prerequisites, it all worked fine
The following solved it for me :
You may need to install the Python 3 and MySQL development headers and libraries like so:
$ sudo apt-get install python3-dev default-libmysqlclient-dev build-essential # Debian / Ubuntu
% sudo yum install python3-devel mysql-devel # Red Hat / CentOS
Then you can install mysqlclient via pip now:
$ pip install mysqlclient
Source : https://github.com/PyMySQL/mysqlclient#prerequisites
I had also similar issue on Centos 6, where there was a problem with mysql migration to maria, I had some conflicts, but finally I installed:
yum list installed |grep MariaDB
MariaDB-client.x86_64 10.2.7-1.el6 #bull
MariaDB-common.x86_64 10.2.7-1.el6 #bull
MariaDB-compat.x86_64 10.2.7-1.el6 #bull
MariaDB-devel.x86_64 10.2.7-1.el6 #bull
MariaDB-server.x86_64 10.2.7-1.el6 #bull
And the issue was resolved.
I tried to use GTKAgg as back-end for matplotlib package.
matplotlib.use('GTKAgg')
Failed to enable GUI event loop integration for 'gtk'
Traceback (most recent call last):
File "/home/oshri/.pycharm_helpers/pydev/_pydev_bundle/pydev_console_utils.py", line 569, in do_enable_gui
enable_gui(guiname)
File "/home/oshri/.pycharm_helpers/pydev/pydev_ipython/inputhook.py", line 528, in enable_gui
return gui_hook(app)
File "/home/oshri/.pycharm_helpers/pydev/pydev_ipython/inputhook.py", line 244, in enable_gtk
from pydev_ipython.inputhookgtk import create_inputhook_gtk
File "/home/oshri/.pycharm_helpers/pydev/_pydev_bundle/pydev_import_hook.py", line 21, in do_import
module = self._system_import(name, *args, **kwargs)
File "/home/oshri/.pycharm_helpers/pydev/pydev_ipython/inputhookgtk.py", line 19, in <module>
import gtk, gobject # #UnresolvedImport
File "/home/oshri/.pycharm_helpers/pydev/_pydev_bundle/pydev_import_hook.py", line 21, in do_import
module = self._system_import(name, *args, **kwargs)
ImportError: No module named 'gtk'
I tried to install the gtk using conda, using this repo, the conda outputs that the package is installed.
import conda.cli
conda.cli.main('conda','install','-c','ska','pygtk=2.16.0')
Fetching package metadata .............
Solving package specifications: .
# All requested packages already installed.
# packages in environment at /data/anaconda:
#
pygtk 2.16.0 0 ska
When I tried to install the pygtk using pip I got this error.
[oshri#analytics ~]$ pip install pygtk
Collecting pygtk
Using cached pygtk-2.24.0.tar.bz2
Complete output from command python setup.py egg_info:
********************************************************************
* Building PyGTK using distutils is only supported on windows. *
* To build PyGTK in a supported way, read the INSTALL file. *
********************************************************************
----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-x78h7u1k/pygtk/
When I tried to use python2.7 I success to import the model.
[oshri#analytics ~]$ /bin/python2.7
Python 2.7.5 (default, Nov 6 2016, 00:28:07)
[GCC 4.8.5 20150623 (Red Hat 4.8.5-11)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import pygtk
>>> exit()
For this reason I think that the issue is related to the python version.
I tried to use this guide but I didn't succeed to use JHBuild.
[oshri#analytics ~]$ jhbuild build pygobject
Required packages:
System installed packages which are too old:
(none)
No matching system package installed:
itstool
libffi (libffi.pc, required=3.0.0)
python3-devel (python3.pc, required=3.2)
libxslt (libxslt.pc, required=1.1.26)
cairo (cairo.pc, required=1.14.0)
libxml2 (libxml-2.0.pc, required=2.7.8)
jhbuild build: Required system dependencies not installed. Install using the command 'jhbuild sysdeps --install' or to ignore system dependencies use command-line option --nodeps
[oshri#analytics ~]$ jhbuild build sysdeps --install pygobject
Usage: jhbuild build [ options ... ] [ modules ... ]
jhbuild: error: no such option: --install
[oshri#analytics ~]$ jhbuild sysdeps --install pygobject
System installed packages which are new enough:
zlib (zlib.pc, installed=1.2.7)
automake
docbook-xml
docbook-xsl
libtool
pkg-config
cc
make
git
xmlcatalog
bison (required=2.4)
intltool (required=0.50.2)
xmllint
xsltproc
libpcre (libpcre.pc, required=8.31, installed=8.32)
flex (required=2.0)
Required packages:
System installed packages which are too old:
(none)
No matching system package installed:
itstool
libxml2 (libxml-2.0.pc, required=2.7.8)
libxslt (libxslt.pc, required=1.1.26)
cairo (cairo.pc, required=1.14.0)
libffi (libffi.pc, required=3.0.0)
python3-devel (python3.pc, required=3.2)
Optional packages: (JHBuild will build the missing packages)
System installed packages which are too old:
(none)
No matching system package installed:
I: Installing dependencies on system: itstool libxml2 libxslt cairo libffi python3-devel
I: Computing packages to install. This might be slow. Please wait.
I: Installing:
itstool;1.2.0-4.el7;noarch;base
libffi-devel;3.0.13-18.el7;x86_64;base
python34-devel;3.4.5-4.el7;x86_64;epel
cairo-devel;1.14.2-1.el7;x86_64;base
libxml2-devel;2.9.1-6.0.1.el7_2.3;x86_64;ol7_latest
libxslt-devel;1.1.28-5.0.1.el7;x86_64;ol7_latest
I: This might take a very long time. Do not turn off your computer. You can run `pkmon' to monitor progress.
E: PackageKit: Failed to obtain authentication.
I: Complete!
[oshri#analytics ~]$ sudo jhbuild sysdeps --install pygobject
[sudo] password for oshri:
sudo: jhbuild: command not found
I'm right that issues related to python version?
Should I install JHBuild under root user?
So I have Python 3 and matplotlib installed globally. If I run python outside of a virtual environment and import matplotlib to check the version it shows 1.5.1 . But I am facing problems installing matplotlib within a virtual environment. I created a virtual environment using the command python3 -m venv ds and activated ds. These are the contents of my requirements.txt
matplotlib==1.4.2
numpy==1.9.1
When I do pip3 install -r requirements.txt I get this
Collecting matplotlib==1.4.2 (from -r requirements.txt (line 1))
Using cached matplotlib-1.4.2.tar.gz
Complete output from command python setup.py egg_info:
Traceback (most recent call last):
File "<string>", line 20, in <module>
File "/private/var/folders/ym/gfrm424x31j4vd944cdhn4hr0000gn/T/pip-build-pcfq8bhb/matplotlib/setup.py", line 155, in <module>
result = package.check()
File "/private/var/folders/ym/gfrm424x31j4vd944cdhn4hr0000gn/T/pip-build-pcfq8bhb/matplotlib/setupext.py", line 962, in check
min_version='2.3', version=version)
File "/private/var/folders/ym/gfrm424x31j4vd944cdhn4hr0000gn/T/pip-build-pcfq8bhb/matplotlib/setupext.py", line 446, in _check_for_pkg_config
if (not is_min_version(version, min_version)):
File "/private/var/folders/ym/gfrm424x31j4vd944cdhn4hr0000gn/T/pip-build-pcfq8bhb/matplotlib/setupext.py", line 174, in is_min_version
return found_version >= expected_version
File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/distutils/version.py", line 70, in __ge__
c = self._cmp(other)
File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/distutils/version.py", line 337, in _cmp
if self.version < other.version:
TypeError: unorderable types: str() < int()
IMPORTANT WARNING:
pkg-config is not installed.
matplotlib may not be able to find some of its dependencies
============================================================================
Edit setup.cfg to change the build options
BUILDING MATPLOTLIB
matplotlib: yes [1.4.2]
python: yes [3.5.1 (v3.5.1:37a07cee5969, Dec 5 2015,
21:12:44) [GCC 4.2.1 (Apple Inc. build 5666) (dot
3)]]
platform: yes [darwin]
REQUIRED DEPENDENCIES AND EXTENSIONS
numpy: yes [version 1.10.4]
six: yes [using six version 1.10.0]
dateutil: yes [dateutil was not found. It is required for date
axis support. pip/easy_install may attempt to
install it after matplotlib.]
pytz: yes [pytz was not found. pip will attempt to install
it after matplotlib.]
tornado: yes [tornado was not found. It is required for the
WebAgg backend. pip/easy_install may attempt to
install it after matplotlib.]
pyparsing: yes [pyparsing was not found. It is required for
mathtext support. pip/easy_install may attempt to
install it after matplotlib.]
pycxx: yes [Official versions of PyCXX are not compatible
with matplotlib on Python 3.x, since they lack
support for the buffer object. Using local copy]
libagg: yes [pkg-config information for 'libagg' could not
be found. Using local copy.]
----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /private/var/folders/ym/gfrm424x31j4vd944cdhn4hr0000gn/T/pip-build-pcfq8bhb/matplotlib
You are using pip version 7.1.2, however version 8.0.2 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.
How should I install matplotlib version 1.4.2 in virtual environment ?
My question has been marked as duplicate but that link doesn't solve my question. The solution given is for Ubuntu
I was able to do it by solving the dependencies for matplotlib,
(if you have brew installed)
then first do brew install freetype followed by brew install ttfautohint --with-qt. After that try again to pip install.
You can use the system package in your virtualenv with this option.
Otherwise, this SO post may help you.
I get ValueError: semaphore or lock released too many times when I try to do pip install matplotlib in Cygwin. What do I do?
UPDATE:
$ pip install matplotlib
Downloading/unpacking matplotlib
You are installing an externally hosted file. Future versions of pip will default to disallowing externally hosted files.
You are installing a potentially insecure and unverifiable file. Future versions of pip will default to disallowing insecure files.
Downloading matplotlib-1.3.0.tar.gz (42.1MB): 42.1MB downloaded
Running setup.py egg_info for package matplotlib
============================================================================
Edit setup.cfg to change the build options
BUILDING MATPLOTLIB
matplotlib: yes [1.3.0]
python: yes [2.7.5 (default, Jul 30 2013, 14:34:22) [GCC
4.8.1]]
platform: yes [cygwin]
REQUIRED DEPENDENCIES AND EXTENSIONS
numpy: yes [version 1.7.1]
dateutil: yes [using dateutil version 2.1]
tornado: yes [tornado was not found. It is required for the
WebAgg backend. pip/easy_install may attempt to
install it after matplotlib.]
pyparsing: yes [pyparsing was not found. It is required for
mathtext support. pip/easy_install may attempt to
install it after matplotlib.]
pycxx: yes [Couldn't import. Using local copy.]
libagg: yes [pkg-config information for 'libagg' could not
be found. Using local copy.]
freetype: yes [version 16.1.10]
png: yes [version 1.5.14]
OPTIONAL SUBPACKAGES
sample_data: yes [installing]
toolkits: yes [installing]
tests: yes [nose 0.11.1 or later is required to run the
matplotlib test suite]
OPTIONAL BACKEND EXTENSIONS
macosx: no [Mac OS-X only]
qt4agg: no [PyQt4 not found]
Process PoolWorker-1:
Traceback (most recent call last):
File "/usr/lib/python2.7/multiprocessing/process.py", line 258, in _bootstrap
self.run()
File "/usr/lib/python2.7/multiprocessing/process.py", line 114, in run
self._target(*self._args, **self._kwargs)
File "/usr/lib/python2.7/multiprocessing/pool.py", line 102, in worker
task = get()
File "/usr/lib/python2.7/multiprocessing/queues.py", line 378, in get
rrelease()
ValueError: semaphore or lock released too many times
I am not sure if it is the issue with a newest (stable) build of matplotlib, but I ran into the same issue as well.
My solution was to install an older stable version (1.2.1).
Download the 1.2.1 tar file, unzip, and install. Do not use the cygwin compiler option when installing. i.e.
python setup.py build --compiler=cygwin
will fail (did for me), while the usual
python setup.py build
will work. Of course You'll want to follow up with
python setup.py install
Note:
I run a pretty recent cygwin64.
I already had all of the dependencies installed.
I've also tried installing 1.3.0 through pip as well as source. Both threw the same exact error you described here.
Try upgrading the "cygwin" package to version 1.7.26 (http://cygwin.1069669.n5.nabble.com/Problem-with-multiprocessing-module-from-Python-td103816.html).