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Install psutil
==============
Linux, Windows, macOS (wheels)
------------------------------
psutil makes extensive use of C extension modules, meaning a C compiler is
required to build the sources.
Pre-compiled cPython wheels are provided on each release though, so on
**Linux**, **Windows** and **macOS** all you have to do is::
pip3 install --user psutil
This (``--user``) will install psutil as a limited user (not system-wide).
If wheels are not available for your platform or architecture, or you whish to
install psutil from sources, keep reading.
Linux (install from sources)
----------------------------
Ubuntu / Debian::
sudo apt-get install gcc python3-dev
pip3 install --user --no-binary :all: psutil
RedHat / CentOS::
sudo yum install gcc python3-devel
pip3 install --user --no-binary :all: psutil
Windows (install from sources)
------------------------------
In order to compile psutil on Windows you'll need **Visual Studio** compiler
(**MinGW** is not supported).
Here's a couple of guides describing how to do it: `link <https://blog.ionelmc.ro/2014/12/21/compiling-python-extensions-on-windows/>`__
and `link <https://cpython-core-tutorial.readthedocs.io/en/latest/build_cpython_windows.html>`__.
Once VS is installed do::
pip3 install --user --no-binary :all: psutil
FreeBSD
-------
::
pkg install python3 gcc
python3 -m pip3 install psutil
OpenBSD
-------
::
export PKG_PATH=http://ftp.eu.openbsd.org/pub/OpenBSD/`uname -r`/packages/`uname -m`/
pkg_add -v python gcc
python3 -m pip install psutil
NetBSD
------
::
export PKG_PATH="ftp.netbsd.org/pub/pkgsrc/packages/NetBSD/`uname -m`/`uname -r`/All"
pkg_add -v pkgin
pkgin install python3 gcc
python3 -m pip install psutil
Sun Solaris
-----------
If ``cc`` compiler is not installed create a symbolic link to ``gcc``::
sudo ln -s /usr/bin/gcc /usr/local/bin/cc
Install::
pkg install gcc
python3 -m pip install psutil
Troubleshooting
===============
Install pip
-----------
Pip is shipped by default with Python 2.7.9+ and 3.4+.
If you don't have pip you can install with wget::
wget https://bootstrap.pypa.io/get-pip.py -O - | python3
...ow with curl::
python3 < <(curl -s https://bootstrap.pypa.io/get-pip.py)
On Windows, `download pip <https://pip.pypa.io/en/latest/installing/>`__, open
cmd.exe and install it with::
C:\Python27\python.exe get-pip.py
"pip not found"
---------------
Sometimes pip is installed but it's not available in your ``PATH``
(``pip command not found`` or similar). Try this::
python3 -m pip install psutil
Permission errors (UNIX)
------------------------
If you want to install psutil system-wide and you bump into permission errors
either run as root or prepend ``sudo``::
sudo pip3 install psutil
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