Just starting out in python on a pendrive 12.04 Kubuntu environment. I had to install GCC (understand that), but I also had to install python-dev before I could use PIP to install numpy. Why do I need python-dev?
sudo apt-get install gcc
sudo apt-get install pip
cd /usr/lib/python2.7/
sudo apt-get install python-dev
sudo pip install numpy
When you use pip to install numpy, the packages is compiled from source. The pythonx.x-dev packages contain the necessary header files for linking against python.
Related
I have just created a virtual environment on my machine (I am running on ubuntu 18.04 LTS). I have the python version of 3.6.7 and now I want to install mysqlclient into my virtual environment.
After I do pip install mysqlclient it didn't work, instead it gave me errors saying;
Command "python.py egg_info" failed with error code 1 in /tmp/pip-install-zd21vfb3/mysqlclient/', and that the msql_config file is not found.
My setup tools are all up to date.
mysqlclient has a dependency on the mysql client & dev packages being installed. In order to fix this on ubuntu, you have to use apt-get to install a couple of mysql packages.
In your case, it looks like the missing mysql_config might be missing on your system. You can fix that by installing libmysqlclient-dev on ubuntu bionic.
In order to correctly install MySQLClient on a fresh Ubuntu 18.04 LTS you need to install each of the following:
# Replace python3.6 with which ever version of Python3 you are using
sudo apt-get install python3.6-dev
sudo apt-get install mysql-client
sudo apt-get install libmysqlclient-dev
sudo apt-get install libssl-dev
The last one is often missed on answers but is required now.
Only then can you install it via pip. Also make sure to update pip so you are not using version 9 if that installs into your vevn.
I was getting the same error when building my docker container. I tried installing the following in sequence but did not work.
sudo apt-get install mysql-client
sudo apt-get install libmysqlclient-dev
sudo apt-get install libssl-dev
Then this 👇 solved the problem.
sudo apt-get install default-libmysqlclient-dev
Check if you have already installed setuptools.
After that
in terminal
sudo apt-get install libmysqlclient-dev
Then(Keeping in mind to activate the virtual enviroment)
sudo pip3 install mysqlclient
I am very new to Ubuntu OS and Python as well. I want to install Django. But i dont have easy_install and I tried below command to install pip
sudo apt-get install python-pip
I got an error as below
Unable to locate package python-pip
I tried below command as well
sudo apt-get install python-pip
and i got error as below
E: Package 'python-setuptools' has no installation candidate
I am very confused in installing django, How to successfully install django
First update repositories
sudo apt-get update
then try
sudo apt-get install python-pip python-dev build-essential python-setuptools
if nothing, you can install pip and setuptools packages manually. Download them from PyPI.
Install pip
To install or upgrade pip, securely download get-pip.py.
Then run the following (which may require administrator access):
sudo python get-pip.py
If setuptools (or distribute) is not already installed, get-pip.py will install setuptools for you.
To upgrade an existing setuptools (or distribute), run pip install -U setuptools
Upgrade pip
On Linux or OS X:
sudo pip install -U pip
Then you can download django using pip,
sudo pip install django
Install
First you need make sure you have Python install, here I take 2.7.6 as example. For how to install Python, you can go check this link:
https://askubuntu.com/questions/443048/python-2-7-6-on-ubuntu-12-04-how-to
Then you can start install Django and setup database as follow:
sudo apt-get install python-django
sudo apt-get install mysql-server
sudo apt-get install python-mysqldb
You can find more configuration detail in this link
http://yuwenqing.org/?p=108
Also, for less pain in future develop, you should deploy your Django application in python virtualEnv, here are some detail of why you need virtualEnv.
http://yuwenqing.org/?p=126
I'm compiling psycopg2 and get the following error:
Python.h: No such file or directory
How to compile it, Ubuntu12 x64.
Python 2:
sudo apt-get install python-dev
Python 3:
sudo apt-get install python3-dev
This is a dependency issue.
I resolved this issue on Ubuntu using apt-get. Substitute it with a package manager appropriate to your system.
For any current Python version:
sudo apt-get install python-dev
For alternative Python version:
sudo apt-get install python<version>-dev
For example 3.5 as alternative:
sudo apt-get install python3.5-dev
if you take a look at PostgreSQL's faq page ( http://initd.org/psycopg/docs/faq.html ) you'll see that they recommend installing pythons development package, which is usually called python-dev. You can install via
sudo apt-get install python-dev
As mentioned in psycopg documentation http://initd.org/psycopg/docs/install.html
Psycopg is a C wrapper around the libpq PostgreSQL client library. To install it from sources you will need:
C compiler
Python header files
They are usually installed in a package such as python-dev a message error such: Python.h: no such file or directory indicate that you missed mentioned python headers.
How you can fix it? First of all you need check which python version installed in your virtual envitonment or in system itself if you didnt use virtual environment. You can check your python version by:
python --version
After it you should install the same python-dev version which installed on your virtual env or system. For example if you use python3.7 you should install
apt-get install python3.7-dev
Hope my answer will help anyone
Based on the python version your your pipenv file requires, you need to install the corresponding dev file.
I was getting this error and my default python version was 3.8 but the pipenv file was requiring the Python3.9 version. So I installed the python3.9 dev.
$ sudo apt install python3.9-dev
While all answers here are correct, they won't work correctly anyway:
- sudo apt-get install python3-dev
- sudo apt-get install python3.5-dev
- etc ..
won't apply when you are using python3.8, python3.9 or future versions
I recommend using a deterministic way instead :
sudo apt install python3-all-dev
On Fedora, Redhat or centos
Python 2:
sudo yum install python-devel
Python 3:
sudo yum install python3-devel
if none of the above-suggested answers is not working, try this it's worked for me.
sudo apt-get install libpq-dev
I installed libmemcached 0,37 and ln -s /usr/local/lib/libmemcached.so.2 /usr/lib/libmemcached.so.2
but when I run manage.py
it still return
import _pylibmc
RuntimeError: pylibmc requires >= libmemcached 0.32, was compiled with 0.31
I try to install newer libmemcached,but they donot have the file libmemcached.so.2
You just need to install these dependencies before installing pylibmc
sudo apt-get install -y libmemcached-dev zlib1g-dev libssl-dev python-dev build-essential
pip install pylibmc
Here is gist on Github that helps you.
You should install python-memcached
You can install like this,
sudo pip install python-memcached
OR
sudo apt-get install python-memcache
python2.7-dev if not installed, you have to install like this,
sudo apt-get install python2.7-dev
It is possible to install NumPy with pip using pip install numpy.
Is there a similar possibility with SciPy? (Doing pip install scipy does not work.)
Update
The package SciPy is now available to be installed with pip!
Prerequisite:
sudo apt-get install build-essential gfortran libatlas-base-dev python-pip python-dev
sudo pip install --upgrade pip
Actual packages:
sudo pip install numpy
sudo pip install scipy
Optional packages:
sudo pip install matplotlib OR sudo apt-get install python-matplotlib
sudo pip install -U scikit-learn
sudo pip install pandas
src
An attempt to easy_install indicates a problem with their listing in the Python Package Index, which pip searches.
easy_install scipy
Searching for scipy
Reading http://pypi.python.org/simple/scipy/
Reading http://www.scipy.org
Reading http://sourceforge.net/project/showfiles.php?group_id=27747&package_id=19531
Reading http://new.scipy.org/Wiki/Download
All is not lost, however; pip can install from Subversion (SVN), Git, Mercurial, and Bazaar repositories. SciPy uses SVN:
pip install svn+http://svn.scipy.org/svn/scipy/trunk/#egg=scipy
Update (12-2012):
pip install git+https://github.com/scipy/scipy.git
Since NumPy is a dependency, it should be installed as well.
In Ubuntu 10.04 (Lucid), I could successfully pip install scipy (within a virtualenv) after installing some of its dependencies, in particular:
$ sudo apt-get install libamd2.2.0 libblas3gf libc6 libgcc1 libgfortran3 liblapack3gf libumfpack5.4.0 libstdc++6 build-essential gfortran libatlas-sse2-dev python-all-dev
To install scipy on windows follow these instructions:-
Step-1 : Press this link http://www.lfd.uci.edu/~gohlke/pythonlibs/#scipy to download a scipy .whl file (e.g. scipy-0.17.0-cp34-none-win_amd64.whl).
Step-2: Go to the directory where that download file is there from the command prompt (cd folder-name ).
Step-3: Run this command:
pip install scipy-0.17.0-cp27-none-win_amd64.whl
I tried all the above and nothing worked for me. This solved all my problems:
pip install -U numpy
pip install -U scipy
Note that the -U option to pip install requests that the package be upgraded. Without it, if the package is already installed pip will inform you of this and exit without doing anything.
If I first install BLAS, LAPACK and GCC Fortran as system packages (I'm using Arch Linux), I can get SciPy installed with:
pip install scipy
On Fedora, this works:
sudo yum install -y python-pip
sudo yum install -y lapack lapack-devel blas blas-devel
sudo yum install -y blas-static lapack-static
sudo pip install numpy
sudo pip install scipy
If you get any public key errors while downloading, add --nogpgcheck as parameter to yum, for example:
yum --nogpgcheck install blas-devel
On Fedora 23 onwards, use dnf instead of yum.
For the Arch Linux users:
pip install --user scipy prerequisites the following Arch packages to be installed:
gcc-fortran
blas
lapack
Addon for Ubuntu (Ubuntu 10.04 LTS (Lucid Lynx)):
The repository moved, but a
pip install -e git+http://github.com/scipy/scipy/#egg=scipy
failed for me... With the following steps, it finally worked out (as root in a virtual environment, where python3 is a link to Python 3.2.2):
install the Ubuntu dependencies (see elaichi), clone NumPy and SciPy:
git clone git://github.com/scipy/scipy.git scipy
git clone git://github.com/numpy/numpy.git numpy
Build NumPy (within the numpy folder):
python3 setup.py build --fcompiler=gnu95
Install SciPy (within the scipy folder):
python3 setup.py install
In my case, it wasn't working until I also installed the following package : libatlas-base-dev, gfortran
sudo apt-get install libatlas-base-dev gfortran
Then run pip install scipy
install python-3.4.4
scipy-0.15.1-win32-superpack-python3.4
apply the following commend doc
py -m pip install --upgrade pip
py -m pip install numpy
py -m pip install matplotlib
py -m pip install scipy
py -m pip install scikit-learn
The answer is yes, there is.
First you can easily install numpy use commands:
pip install numpy
Then you should install mkl, which is required by Scipy, and you can download it here
After download the file_name.whl you install it
C:\Users\****\Desktop\a> pip install mkl_service-1.1.2-cp35-cp35m-win32.whl
Processing c:\users\****\desktop\a\mkl_service-1.1.2-cp35-cp35m-win32.whl
Installing collected packages: mkl-service
Successfully installed mkl-service-1.1.2
Then at the same website you can download scipy-0.18.1-cp35-cp35m-win32.whl
Note:You should download the file_name.whl according to you python version, if you python version is 32bit python3.5 you should download this one, and the "win32" is about your python version, not your operating system version.
Then install file_name.whl like this:
C:\Users\****\Desktop\a>pip install scipy-0.18.1-cp35-cp35m-win32.whl
Processing c:\users\****\desktop\a\scipy-0.18.1-cp35-cp35m-win32.whl
Installing collected packages: scipy
Successfully installed scipy-0.18.1
Then there is only one more thing to do: comment out a specfic line or there will be error messages when you imput command "import scipy".
So comment out this line
from numpy._distributor_init import NUMPY_MKL # requires numpy+mkl
in this file: your_own_path\lib\site-packages\scipy__init__.py
Then you can use SciPy :)
Here tells you more about the last step.
Here is a similar anwser to a similar question.
Besides all of these answers,
If you install python of 32bit on your 64bit machine, you have to download scipy of 32-bit irrespective of your machine.
http://www.lfd.uci.edu/~gohlke/pythonlibs/
In the above URL you can download the packages and command is: pip install
For gentoo, it's in the main repository:
emerge --ask scipy
You can also use this in windows with python 3.6 python -m pip install scipy