I uploaded my package to testpypi, and installed it via:
pip install -i https://test.pypi.org/simple/ myporj==0.1.6
However it refuse to install it by saying:
Requirement already satisfied: myproj==0.1.6 in ./projs/myproj (0.1.6)
I guess I may add the project in editable mode:
pip install --editable .
However, I know want to disable it. I tried:
python setup.py develop --uninstall
But it has no effect.
It may be worth creating a separate env (Virtual Environments) for the installation.
Here are some articles on this subject:
https://docs.python.org/3/tutorial/venv.html
https://packaging.python.org/guides/installing-using-pip-and-virtual-environments/#creating-a-virtual-environment
Or does it need to be installed in the same place?
You can try to find your package pip search myporj or pip list for show all packages.
And uninstall it later pip uninstall myporj (it may require the right of sudo in linux) then install again.
Maybe you may need --no-cache-dir option to ignore the cache during installation. Here is more details: https://pip.pypa.io/en/stable/reference/pip_install/#caching
I want to include a Python package dependency (installed using pip3 install) in an rpm package. I cannot install using dnf because its version is out of date. rpm returns the following error if I install the dependency using pip3 install:
error: Failed dependencies python3.6dist(dependency-package)
Any suggestions on how to include a Python package inside of an rpm?
OK. Some of your package require python3-somepackage or python3dist(somepackage). For rpm, it is just a string. Rpm does not care that the python module has been installed using pip. There must be some package which provides that string.
You have two options.
Prefered is use of pyp2rpm --srpm somepackage. That will download the latest version of the module from PyPI and produce the src.rpm. You can then build it using mock -r epel-8-x86_64 somepackage.src.rpm
The other option is to fake the provides. You can install the module using pip and then run: create-fake-rpm --build python3-somepackage 'python3dist(somepackage)'. This will generate the file fake-python3-somepackage-0-0.noarch.rpm which you can install using rpm. Then you can proceed with the install of your application. Be warned, that this is cheating. Future dnf upgrade will not update this module, you will have to take care of that yourself.
I am wondering if there is a way to uninstall packages in PIP including those that are not listed in the requirements.txt but which were installed as dependencies of those that are.
For example, suppose I have Django==2.1 line in requirements.txt. When running pip install -r requirements.txt, the above will instruct PIP to install many extra packages on which Django depends.
However, if I then execute pip uninstall -r requirements.txt, the Django package will be uninstalled, but PIP will retain many of its now unused dependencies.
My question is how to go about cleaning those up nicely. Is there a way to make PIP preserve and consider history explicitly? If the thing which forced PIP to install a package is being uninstalled, it appears that we should also be able to flag it to wipe its now defunct dependencies.
Take a look at pipdeptree Python package and pipdeptree --reverse some_package command in particular.
The easiest option is to use pip-autoremove. After installing it via pip, you can simply call the following from the command line:
pip-autoremove Django
Which uninstalls Django and its unused dependencies including those not listed in requirements.txt.
I was looking for a tutorial on how to install Python libraries in the wheel format.
It does not seem straightforward so I'd appreciate a simple step by step tutorial how to install the module named "requests" for CPython.
I downloaded it from: https://pypi.python.org/pypi/requests and now I have a .whl file. I've got Python 2.7 and 3.3 on Windows, so how do I install it so all the other Python scripts I run can use it?
You want to install a downloaded wheel (.whl) file on Python under Windows?
Install pip on your Python(s) on Windows (on Python 3.4+ it is already included)
Upgrade pip if necessary (on the command line)
pip install -U pip
Install a local wheel file using pip (on the command line)
pip install --no-index --find-links=LocalPathToWheelFile PackageName
Option --no-index tells pip to not look on pypi.python.org (which would fail for many packages if you have no compiler installed), --find-links then tells pip where to look for instead. PackageName is the name of the package (numpy, scipy, .. first part or whole of wheel file name). For more informations see the install options of pip.
You can execute these commands in the command prompt when switching to your Scripts folder of your Python installation.
Example:
cd C:\Python27\Scripts
pip install -U pip
pip install --no-index --find-links=LocalPathToWheelFile PackageName
Note: It can still be that the package does not install on Windows because it may contain C/C++ source files which need to be compiled. You would need then to make sure a compiler is installed. Often searching for alternative pre-compiled distributions is the fastest way out.
For example numpy-1.9.2+mkl-cp27-none-win_amd64.whl has PackageName numpy.
If you want to be relax for installing libraries for python.
You should using pip, that is python installer package.
To install pip:
Download ez_setup.py and then run:
python ez_setup.py
Then download get-pip.py and run:
python get-pip.py
upgrade installed setuptools by pip:
pip install setuptools --upgrade
If you got this error:
Wheel installs require setuptools >= 0.8 for dist-info support.
pip's wheel support requires setuptools >= 0.8 for dist-info support.
Add --no-use-wheel to above cmd:
pip install setuptools --no-use-wheel --upgrade
Now, you can install libraries for python, just by:
pip install library_name
For example:
pip install requests
Note that to install some library may they need to compile, so you need to have compiler.
On windows there is a site for Unofficial Windows Binaries for Python Extension Packages that have huge python packages and complied python packages for windows.
For example to install pip using this site, just download and install setuptools and pip installer from that.
To install wheel packages in python 2.7x:
Install python 2.7x (i would recommend python 2.78) - download the appropriate python binary for your version of windows . You can download python 2.78 at this site https://www.python.org/download/releases/2.7.8/
-I would recommend installing the graphical Tk module, and including python 2.78 in the windows path (environment variables) during installation.
Install get-pip.py and setuptools
Download the installer at
https://bootstrap.pypa.io/get-pip.py
Double click the above file to run it. It will install pip and setuptools [or update them, if you have an earlier version of either]
-Double click the above file and wait - it will open a black window and print will scroll across the screen as it downloads and installs [or updates] pip and setuptools --->when it finishes the window will close.
Open an elevated command prompt - click on windows start icon, enter cmd in the search field (but do not press enter), then press ctrl+shift+. Click 'yes' when the uac box appears.
A-type
cd c:\python27\scripts
[or cd \scripts ]
B-type
pip install -u
Eg to install pyside, type pip install -u pyside
Wait - it will state 'downloading PySide or -->it will download and install the appropriate version of the python package [the one that corresponds to your version of python and windows.]
Note - if you have downloaded the .whl file and saved it locally on your hard drive, type in
pip install --no-index --find-links=localpathtowheelfile packagename
**to install a previously downloaded wheel package you need to type in the following command
pip install --no-index --find-links=localpathtowheelfile packagename
Have you checked this http://docs.python.org/2/install/ ?
First you have to install the module
$ pip install requests
Then, before using it you must import it from your program.
from requests import requests
Note that your modules must be in the same directory.
Then you can use it.
For this part you have to check for the documentation.
Install distribute by downloading and running distribute_setup.py. This will make easy_install available, and from there you can install pip with easy_install pip. Then you can run pip install CAGE. Using pip to install things is a lot easier than messing with manually running setup.py, because pip can do things like:
automatically resolve dependencies
show you a list of all installed packages and their versions
install a set of specified packages from a requirements.txt
upgrade and uninstall packages
work with virtualenv
If you're on Windows, the one downside of pip occurs when there are C library dependencies, as pip will want a C toolchain installed so it can compile things. If that is the case, then there are two options. If there are precompiled binaries on PyPI, then just run easy_install package instead; easy_install knows how to use binary packages. You can also check Christoph Gohlke's site for executable installers of many binary packages. These can also be installed by easy_install if you want to use them with a virtualenv (just point it to the path of the .exe) or you can click and run if you don't care about virtualenv.
The main point is that no matter what route you choose to install packages, at no point are you ever moving around files by hand. You need to get out of the mindset of "I extracted this archive, where do I put these .py files?" That's not how it works. You're either running pip, running easy_install, running setup.py, clicking on an installer package, or using your distribution's installer. At no point are you ever doing anything by hand with the files directly.
Once you have a library downloaded you can execute this from the MS-DOS command box:
python setup.py install
The setup.py is located inside every library main folder.
For windows, there are automatic installer packages available at this site
It includes most of the python packages.
But the best way for it is of course using pip.
You don't need to download exclusively from the website. Just make sure you have pip (which you probably will if you have python installed). Just open your Command Prompt (CMD) and run the command:
pip install pygame
It will automatically download the correct whl version of pygame compatible with your configuration of PC. Make sure you remember the version which appears while "downloading" as this is the compatible version of .whl packages you shall be looking for in the future.
Simple steps to install python in Ubuntu:
Download Python
$ cd /usr/src
$ wget https://www.python.org/ftp/python/3.6.0/Python-3.6.0.tgz
Extract the downloaded package
$ sudo tar xzf Python-3.6.0.tgz
Compile Python source
$ cd Python-3.6.0
$ sudo ./configure
$ sudo make altinstall
Note make altinstall is used to prevent replacing the default python binary file /usr/bin/python.
check the python version
# python3.6 -V
i have write the answer here
How to add/use libraries in Python (3.5.1)
but no problem will rewrite it again
if u have or you can create a file requirements.txt which contains the libraries that you want to install for ex:
numpy==1.14.2
Pillow==5.1.0
You gonna situate in your folder which contains that requirements.txt in my case the path to my project is
C:\Users\LE\Desktop\Projet2_Sig_Exo3\exo 3\k-means
now just type
python -m pip install -r ./requirements.txt
and all the libararies that you want gonna install
C:\Users\LE\Desktop\Projet2_Sig_Exo3\exo 3\k-means>python -m pip install -r ./requirements.txt
Seems kinda weird that they'd require a package manager to install a package manager. I'm on Windows BTW.
Pip does require setuptools. Pip is really just a wrapper around setuptools to provide a better installer than easy_install and some nicer installation behaviors, plus uninstall, requirements files, etc. Even if you somehow got pip installed without setuptools it still won't run without it.
You can use Distribute instead of setuptools: it installs a package called setuptools (it's a fork of the latter). You can install Distribute by downloading and running distribute_setup.py.
Update: As Gringo Suave says, the above is obsolete now - distribute and setuptools have now merged, and the merged project is called setuptools.
You can download setuptools package as Windows installer from pypi/setuptools and then install pip or easy_install
Solution for Windows Users
If you installed ActivePython on Windows, then you have pip by default, as well as PyPM (ActiveState's package manager). The following excerpt is from What's included in ActivePython 2.7:
Additional Packages
PyPM: Python Package Manager to download and install binary packages. Also included: virtualenv, Distribute, pip, SQLAlchemy.
Solution for OS X Users
Not sure if setuptools is required when installing pip using homebrew. You might try that.
To install homebrew:
ruby -e "$(curl -fsSL https://gist.github.com/raw/323731/install_homebrew.rb)"
Then to install pip:
brew install pip
Sure, just grab the source from http://pypi.python.org/pypi/pip/0.8.2#downloads
unpack it, cd into it, and run python setup.py install